Assertion::betweenLength() - Code Metrics - Inspection of "Merge pull request #201 from abacaphiliac/assert-e..." - beberlei/assert - Measure and Improve Code Quality continuously with Scrutinizer

Completed
Push — master ( 2f56eb...d40050 )

by Richard
created 2017-01-04 13:43 UTC
Assertion::betweenLength() B

↳ Parent: Assertion
Complexity

Conditions	5
Paths	3
Size

Total Lines	30
Code Lines	19
Duplication

Lines	0
Ratio	0 %
Importance

Changes
Metric	Value
cc	5
eloc	19
nc	3
nop	6
dl	0
loc	30
rs	8.439
c	0
b	0
f	0
<?php

/**
 * Assert
 *
 * LICENSE
 *
 * This source file is subject to the MIT license that is bundled
 * with this package in the file LICENSE.txt.
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to [email protected] so I can send you a copy immediately.
 */

namespace Assert;

use BadMethodCallException;

/**
 * Assert library
 *
 * @author Benjamin Eberlei <[email protected]>
 *
 * @method static bool allAlnum($value, $message = null, $propertyPath = null) Assert that value is alphanumeric for all values.
 * @method static bool allBetween($value, $lowerLimit, $upperLimit, $message = null, $propertyPath = null) Assert that a value is greater or equal than a lower limit, and less than or equal to an upper limit for all values.
 * @method static bool allBetweenExclusive($value, $lowerLimit, $upperLimit, $message = null, $propertyPath = null) Assert that a value is greater than a lower limit, and less than an upper limit for all values.
 * @method static bool allBetweenLength($value, $minLength, $maxLength, $message = null, $propertyPath = null, $encoding = "utf8") Assert that string length is between min,max lengths for all values.
 * @method static bool allBoolean($value, $message = null, $propertyPath = null) Assert that value is php boolean for all values.
 * @method static bool allChoice($value, $choices, $message = null, $propertyPath = null) Assert that value is in array of choices for all values.
 * @method static bool allChoicesNotEmpty($values, $choices, $message = null, $propertyPath = null) Determines if the values array has every choice as key and that this choice has content for all values.
 * @method static bool allClassExists($value, $message = null, $propertyPath = null) Assert that the class exists for all values.
 * @method static bool allContains($string, $needle, $message = null, $propertyPath = null, $encoding = "utf8") Assert that string contains a sequence of chars for all values.
 * @method static bool allCount($countable, $count, $message = null, $propertyPath = null) Assert that the count of countable is equal to count for all values.
 * @method static bool allDate($value, $format, $message = null, $propertyPath = null) Assert that date is valid and corresponds to the given format for all values.
 * @method static bool allDefined($constant, $message = null, $propertyPath = null) Assert that a constant is defined for all values.
 * @method static bool allDigit($value, $message = null, $propertyPath = null) Validates if an integer or integerish is a digit for all values.
 * @method static bool allDirectory($value, $message = null, $propertyPath = null) Assert that a directory exists for all values.
 * @method static bool allE164($value, $message = null, $propertyPath = null) Assert that the given string is a valid E164 Phone Number for all values.
 * @method static bool allEmail($value, $message = null, $propertyPath = null) Assert that value is an email adress (using input_filter/FILTER_VALIDATE_EMAIL) for all values.
 * @method static bool allEndsWith($string, $needle, $message = null, $propertyPath = null, $encoding = "utf8") Assert that string ends with a sequence of chars for all values.
 * @method static bool allEq($value, $value2, $message = null, $propertyPath = null) Assert that two values are equal (using == ) for all values.
 * @method static bool allExtensionLoaded($value, $message = null, $propertyPath = null) Assert that extension is loaded for all values.
 * @method static bool allFalse($value, $message = null, $propertyPath = null) Assert that the value is boolean False for all values.
 * @method static bool allFile($value, $message = null, $propertyPath = null) Assert that a file exists for all values.
 * @method static bool allFloat($value, $message = null, $propertyPath = null) Assert that value is a php float for all values.
 * @method static bool allGreaterOrEqualThan($value, $limit, $message = null, $propertyPath = null) Determines if the value is greater or equal than given limit for all values.
 * @method static bool allGreaterThan($value, $limit, $message = null, $propertyPath = null) Determines if the value is greater than given limit for all values.
 * @method static bool allImplementsInterface($class, $interfaceName, $message = null, $propertyPath = null) Assert that the class implements the interface for all values.
 * @method static bool allInArray($value, $choices, $message = null, $propertyPath = null) Alias of {@see choice()} for all values.
 * @method static bool allInteger($value, $message = null, $propertyPath = null) Assert that value is a php integer for all values.
 * @method static bool allIntegerish($value, $message = null, $propertyPath = null) Assert that value is a php integer'ish for all values.
 * @method static bool allInterfaceExists($value, $message = null, $propertyPath = null) Assert that the interface exists for all values.
 * @method static bool allIp($value, $flag = null, $message = null, $propertyPath = null) Assert that value is an IPv4 or IPv6 address for all values.
 * @method static bool allIpv4($value, $flag = null, $message = null, $propertyPath = null) Assert that value is an IPv4 address for all values.
 * @method static bool allIpv6($value, $flag = null, $message = null, $propertyPath = null) Assert that value is an IPv6 address for all values.
 * @method static bool allIsArray($value, $message = null, $propertyPath = null) Assert that value is an array for all values.
 * @method static bool allIsArrayAccessible($value, $message = null, $propertyPath = null) Assert that value is an array or an array-accessible object for all values.
 * @method static bool allIsCallable($value, $message = null, $propertyPath = null) Determines that the provided value is callable for all values.
 * @method static bool allIsInstanceOf($value, $className, $message = null, $propertyPath = null) Assert that value is instance of given class-name for all values.
 * @method static bool allIsJsonString($value, $message = null, $propertyPath = null) Assert that the given string is a valid json string for all values.
 * @method static bool allIsObject($value, $message = null, $propertyPath = null) Determines that the provided value is an object for all values.
 * @method static bool allIsTraversable($value, $message = null, $propertyPath = null) Assert that value is an array or a traversable object for all values.
 * @method static bool allKeyExists($value, $key, $message = null, $propertyPath = null) Assert that key exists in an array for all values.
 * @method static bool allKeyIsset($value, $key, $message = null, $propertyPath = null) Assert that key exists in an array/array-accessible object using isset() for all values.
 * @method static bool allKeyNotExists($value, $key, $message = null, $propertyPath = null) Assert that key does not exist in an array for all values.
 * @method static bool allLength($value, $length, $message = null, $propertyPath = null, $encoding = "utf8") Assert that string has a given length for all values.
 * @method static bool allLessOrEqualThan($value, $limit, $message = null, $propertyPath = null) Determines if the value is less or than given limit for all values.
 * @method static bool allLessThan($value, $limit, $message = null, $propertyPath = null) Determines if the value is less than given limit for all values.
 * @method static bool allMax($value, $maxValue, $message = null, $propertyPath = null) Assert that a number is smaller as a given limit for all values.
 * @method static bool allMaxLength($value, $maxLength, $message = null, $propertyPath = null, $encoding = "utf8") Assert that string value is not longer than $maxLength chars for all values.
 * @method static bool allMethodExists($value, $object, $message = null, $propertyPath = null) Determines that the named method is defined in the provided object for all values.
 * @method static bool allMin($value, $minValue, $message = null, $propertyPath = null) Assert that a value is at least as big as a given limit for all values.
 * @method static bool allMinLength($value, $minLength, $message = null, $propertyPath = null, $encoding = "utf8") Assert that a string is at least $minLength chars long for all values.
 * @method static bool allNoContent($value, $message = null, $propertyPath = null) Assert that value is empty for all values.
 * @method static bool allNotBlank($value, $message = null, $propertyPath = null) Assert that value is not blank for all values.
 * @method static bool allNotEmpty($value, $message = null, $propertyPath = null) Assert that value is not empty for all values.
 * @method static bool allNotEmptyKey($value, $key, $message = null, $propertyPath = null) Assert that key exists in an array/array-accessible object and its value is not empty for all values.
 * @method static bool allNotEq($value1, $value2, $message = null, $propertyPath = null) Assert that two values are not equal (using == ) for all values.
 * @method static bool allNotInArray($value, $choices, $message = null, $propertyPath = null) Assert that value is not in array of choices for all values.
 * @method static bool allNotIsInstanceOf($value, $className, $message = null, $propertyPath = null) Assert that value is not instance of given class-name for all values.
 * @method static bool allNotNull($value, $message = null, $propertyPath = null) Assert that value is not null for all values.
 * @method static bool allNotSame($value1, $value2, $message = null, $propertyPath = null) Assert that two values are not the same (using === ) for all values.
 * @method static bool allNull($value, $message = null, $propertyPath = null) Assert that value is null for all values.
 * @method static bool allNumeric($value, $message = null, $propertyPath = null) Assert that value is numeric for all values.
 * @method static bool allRange($value, $minValue, $maxValue, $message = null, $propertyPath = null) Assert that value is in range of numbers for all values.
 * @method static bool allReadable($value, $message = null, $propertyPath = null) Assert that the value is something readable for all values.
 * @method static bool allRegex($value, $pattern, $message = null, $propertyPath = null) Assert that value matches a regex for all values.
 * @method static bool allSame($value, $value2, $message = null, $propertyPath = null) Assert that two values are the same (using ===) for all values.
 * @method static bool allSatisfy($value, $callback, $message = null, $propertyPath = null) Assert that the provided value is valid according to a callback for all values.
 * @method static bool allScalar($value, $message = null, $propertyPath = null) Assert that value is a PHP scalar for all values.
 * @method static bool allStartsWith($string, $needle, $message = null, $propertyPath = null, $encoding = "utf8") Assert that string starts with a sequence of chars for all values.
 * @method static bool allString($value, $message = null, $propertyPath = null) Assert that value is a string for all values.
 * @method static bool allSubclassOf($value, $className, $message = null, $propertyPath = null) Assert that value is subclass of given class-name for all values.
 * @method static bool allTrue($value, $message = null, $propertyPath = null) Assert that the value is boolean True for all values.
 * @method static bool allUrl($value, $message = null, $propertyPath = null) Assert that value is an URL for all values.
 * @method static bool allUuid($value, $message = null, $propertyPath = null) Assert that the given string is a valid UUID for all values.
 * @method static bool allWriteable($value, $message = null, $propertyPath = null) Assert that the value is something writeable for all values.
 * @method static bool nullOrAlnum($value, $message = null, $propertyPath = null) Assert that value is alphanumeric or that the value is null.
 * @method static bool nullOrBetween($value, $lowerLimit, $upperLimit, $message = null, $propertyPath = null) Assert that a value is greater or equal than a lower limit, and less than or equal to an upper limit or that the value is null.
 * @method static bool nullOrBetweenExclusive($value, $lowerLimit, $upperLimit, $message = null, $propertyPath = null) Assert that a value is greater than a lower limit, and less than an upper limit or that the value is null.
 * @method static bool nullOrBetweenLength($value, $minLength, $maxLength, $message = null, $propertyPath = null, $encoding = "utf8") Assert that string length is between min,max lengths or that the value is null.
 * @method static bool nullOrBoolean($value, $message = null, $propertyPath = null) Assert that value is php boolean or that the value is null.
 * @method static bool nullOrChoice($value, $choices, $message = null, $propertyPath = null) Assert that value is in array of choices or that the value is null.
 * @method static bool nullOrChoicesNotEmpty($values, $choices, $message = null, $propertyPath = null) Determines if the values array has every choice as key and that this choice has content or that the value is null.
 * @method static bool nullOrClassExists($value, $message = null, $propertyPath = null) Assert that the class exists or that the value is null.
 * @method static bool nullOrContains($string, $needle, $message = null, $propertyPath = null, $encoding = "utf8") Assert that string contains a sequence of chars or that the value is null.
 * @method static bool nullOrCount($countable, $count, $message = null, $propertyPath = null) Assert that the count of countable is equal to count or that the value is null.
 * @method static bool nullOrDate($value, $format, $message = null, $propertyPath = null) Assert that date is valid and corresponds to the given format or that the value is null.
 * @method static bool nullOrDefined($constant, $message = null, $propertyPath = null) Assert that a constant is defined or that the value is null.
 * @method static bool nullOrDigit($value, $message = null, $propertyPath = null) Validates if an integer or integerish is a digit or that the value is null.
 * @method static bool nullOrDirectory($value, $message = null, $propertyPath = null) Assert that a directory exists or that the value is null.
 * @method static bool nullOrE164($value, $message = null, $propertyPath = null) Assert that the given string is a valid E164 Phone Number or that the value is null.
 * @method static bool nullOrEmail($value, $message = null, $propertyPath = null) Assert that value is an email adress (using input_filter/FILTER_VALIDATE_EMAIL) or that the value is null.
 * @method static bool nullOrEndsWith($string, $needle, $message = null, $propertyPath = null, $encoding = "utf8") Assert that string ends with a sequence of chars or that the value is null.
 * @method static bool nullOrEq($value, $value2, $message = null, $propertyPath = null) Assert that two values are equal (using == ) or that the value is null.
 * @method static bool nullOrExtensionLoaded($value, $message = null, $propertyPath = null) Assert that extension is loaded or that the value is null.
 * @method static bool nullOrFalse($value, $message = null, $propertyPath = null) Assert that the value is boolean False or that the value is null.
 * @method static bool nullOrFile($value, $message = null, $propertyPath = null) Assert that a file exists or that the value is null.
 * @method static bool nullOrFloat($value, $message = null, $propertyPath = null) Assert that value is a php float or that the value is null.
 * @method static bool nullOrGreaterOrEqualThan($value, $limit, $message = null, $propertyPath = null) Determines if the value is greater or equal than given limit or that the value is null.
 * @method static bool nullOrGreaterThan($value, $limit, $message = null, $propertyPath = null) Determines if the value is greater than given limit or that the value is null.
 * @method static bool nullOrImplementsInterface($class, $interfaceName, $message = null, $propertyPath = null) Assert that the class implements the interface or that the value is null.
 * @method static bool nullOrInArray($value, $choices, $message = null, $propertyPath = null) Alias of {@see choice()} or that the value is null.
 * @method static bool nullOrInteger($value, $message = null, $propertyPath = null) Assert that value is a php integer or that the value is null.
 * @method static bool nullOrIntegerish($value, $message = null, $propertyPath = null) Assert that value is a php integer'ish or that the value is null.
 * @method static bool nullOrInterfaceExists($value, $message = null, $propertyPath = null) Assert that the interface exists or that the value is null.
 * @method static bool nullOrIp($value, $flag = null, $message = null, $propertyPath = null) Assert that value is an IPv4 or IPv6 address or that the value is null.
 * @method static bool nullOrIpv4($value, $flag = null, $message = null, $propertyPath = null) Assert that value is an IPv4 address or that the value is null.
 * @method static bool nullOrIpv6($value, $flag = null, $message = null, $propertyPath = null) Assert that value is an IPv6 address or that the value is null.
 * @method static bool nullOrIsArray($value, $message = null, $propertyPath = null) Assert that value is an array or that the value is null.
 * @method static bool nullOrIsArrayAccessible($value, $message = null, $propertyPath = null) Assert that value is an array or an array-accessible object or that the value is null.
 * @method static bool nullOrIsCallable($value, $message = null, $propertyPath = null) Determines that the provided value is callable or that the value is null.
 * @method static bool nullOrIsInstanceOf($value, $className, $message = null, $propertyPath = null) Assert that value is instance of given class-name or that the value is null.
 * @method static bool nullOrIsJsonString($value, $message = null, $propertyPath = null) Assert that the given string is a valid json string or that the value is null.
 * @method static bool nullOrIsObject($value, $message = null, $propertyPath = null) Determines that the provided value is an object or that the value is null.
 * @method static bool nullOrIsTraversable($value, $message = null, $propertyPath = null) Assert that value is an array or a traversable object or that the value is null.
 * @method static bool nullOrKeyExists($value, $key, $message = null, $propertyPath = null) Assert that key exists in an array or that the value is null.
 * @method static bool nullOrKeyIsset($value, $key, $message = null, $propertyPath = null) Assert that key exists in an array/array-accessible object using isset() or that the value is null.
 * @method static bool nullOrKeyNotExists($value, $key, $message = null, $propertyPath = null) Assert that key does not exist in an array or that the value is null.
 * @method static bool nullOrLength($value, $length, $message = null, $propertyPath = null, $encoding = "utf8") Assert that string has a given length or that the value is null.
 * @method static bool nullOrLessOrEqualThan($value, $limit, $message = null, $propertyPath = null) Determines if the value is less or than given limit or that the value is null.
 * @method static bool nullOrLessThan($value, $limit, $message = null, $propertyPath = null) Determines if the value is less than given limit or that the value is null.
 * @method static bool nullOrMax($value, $maxValue, $message = null, $propertyPath = null) Assert that a number is smaller as a given limit or that the value is null.
 * @method static bool nullOrMaxLength($value, $maxLength, $message = null, $propertyPath = null, $encoding = "utf8") Assert that string value is not longer than $maxLength chars or that the value is null.
 * @method static bool nullOrMethodExists($value, $object, $message = null, $propertyPath = null) Determines that the named method is defined in the provided object or that the value is null.
 * @method static bool nullOrMin($value, $minValue, $message = null, $propertyPath = null) Assert that a value is at least as big as a given limit or that the value is null.
 * @method static bool nullOrMinLength($value, $minLength, $message = null, $propertyPath = null, $encoding = "utf8") Assert that a string is at least $minLength chars long or that the value is null.
 * @method static bool nullOrNoContent($value, $message = null, $propertyPath = null) Assert that value is empty or that the value is null.
 * @method static bool nullOrNotBlank($value, $message = null, $propertyPath = null) Assert that value is not blank or that the value is null.
 * @method static bool nullOrNotEmpty($value, $message = null, $propertyPath = null) Assert that value is not empty or that the value is null.
 * @method static bool nullOrNotEmptyKey($value, $key, $message = null, $propertyPath = null) Assert that key exists in an array/array-accessible object and its value is not empty or that the value is null.
 * @method static bool nullOrNotEq($value1, $value2, $message = null, $propertyPath = null) Assert that two values are not equal (using == ) or that the value is null.
 * @method static bool nullOrNotInArray($value, $choices, $message = null, $propertyPath = null) Assert that value is not in array of choices or that the value is null.
 * @method static bool nullOrNotIsInstanceOf($value, $className, $message = null, $propertyPath = null) Assert that value is not instance of given class-name or that the value is null.
 * @method static bool nullOrNotNull($value, $message = null, $propertyPath = null) Assert that value is not null or that the value is null.
 * @method static bool nullOrNotSame($value1, $value2, $message = null, $propertyPath = null) Assert that two values are not the same (using === ) or that the value is null.
 * @method static bool nullOrNull($value, $message = null, $propertyPath = null) Assert that value is null or that the value is null.
 * @method static bool nullOrNumeric($value, $message = null, $propertyPath = null) Assert that value is numeric or that the value is null.
 * @method static bool nullOrRange($value, $minValue, $maxValue, $message = null, $propertyPath = null) Assert that value is in range of numbers or that the value is null.
 * @method static bool nullOrReadable($value, $message = null, $propertyPath = null) Assert that the value is something readable or that the value is null.
 * @method static bool nullOrRegex($value, $pattern, $message = null, $propertyPath = null) Assert that value matches a regex or that the value is null.
 * @method static bool nullOrSame($value, $value2, $message = null, $propertyPath = null) Assert that two values are the same (using ===) or that the value is null.
 * @method static bool nullOrSatisfy($value, $callback, $message = null, $propertyPath = null) Assert that the provided value is valid according to a callback or that the value is null.
 * @method static bool nullOrScalar($value, $message = null, $propertyPath = null) Assert that value is a PHP scalar or that the value is null.
 * @method static bool nullOrStartsWith($string, $needle, $message = null, $propertyPath = null, $encoding = "utf8") Assert that string starts with a sequence of chars or that the value is null.
 * @method static bool nullOrString($value, $message = null, $propertyPath = null) Assert that value is a string or that the value is null.
 * @method static bool nullOrSubclassOf($value, $className, $message = null, $propertyPath = null) Assert that value is subclass of given class-name or that the value is null.
 * @method static bool nullOrTrue($value, $message = null, $propertyPath = null) Assert that the value is boolean True or that the value is null.
 * @method static bool nullOrUrl($value, $message = null, $propertyPath = null) Assert that value is an URL or that the value is null.
 * @method static bool nullOrUuid($value, $message = null, $propertyPath = null) Assert that the given string is a valid UUID or that the value is null.
 * @method static bool nullOrWriteable($value, $message = null, $propertyPath = null) Assert that the value is something writeable or that the value is null.
 */
class Assertion
{
    const INVALID_FLOAT             = 9;
    const INVALID_INTEGER           = 10;
    const INVALID_DIGIT             = 11;
    const INVALID_INTEGERISH        = 12;
    const INVALID_BOOLEAN           = 13;
    const VALUE_EMPTY               = 14;
    const VALUE_NULL                = 15;
    const VALUE_NOT_NULL            = 25;
    const INVALID_STRING            = 16;
    const INVALID_REGEX             = 17;
    const INVALID_MIN_LENGTH        = 18;
    const INVALID_MAX_LENGTH        = 19;
    const INVALID_STRING_START      = 20;
    const INVALID_STRING_CONTAINS   = 21;
    const INVALID_CHOICE            = 22;
    const INVALID_NUMERIC           = 23;
    const INVALID_ARRAY             = 24;
    const INVALID_KEY_EXISTS        = 26;
    const INVALID_NOT_BLANK         = 27;
    const INVALID_INSTANCE_OF       = 28;
    const INVALID_SUBCLASS_OF       = 29;
    const INVALID_RANGE             = 30;
    const INVALID_ALNUM             = 31;
    const INVALID_TRUE              = 32;
    const INVALID_EQ                = 33;
    const INVALID_SAME              = 34;
    const INVALID_MIN               = 35;
    const INVALID_MAX               = 36;
    const INVALID_LENGTH            = 37;
    const INVALID_FALSE             = 38;
    const INVALID_STRING_END        = 39;
    const INVALID_UUID              = 40;
    const INVALID_COUNT             = 41;
    const INVALID_NOT_EQ            = 42;
    const INVALID_NOT_SAME          = 43;
    const INVALID_TRAVERSABLE       = 44;
    const INVALID_ARRAY_ACCESSIBLE  = 45;
    const INVALID_KEY_ISSET         = 46;
    const INVALID_VALUE_IN_ARRAY    = 47;
    const INVALID_E164              = 48;
    const INVALID_DIRECTORY         = 101;
    const INVALID_FILE              = 102;
    const INVALID_READABLE          = 103;
    const INVALID_WRITEABLE         = 104;
    const INVALID_CLASS             = 105;
    const INVALID_INTERFACE         = 106;
    const INVALID_EMAIL             = 201;
    const INTERFACE_NOT_IMPLEMENTED = 202;
    const INVALID_URL               = 203;
    const INVALID_NOT_INSTANCE_OF   = 204;
    const VALUE_NOT_EMPTY           = 205;
    const INVALID_JSON_STRING       = 206;
    const INVALID_OBJECT            = 207;
    const INVALID_METHOD            = 208;
    const INVALID_SCALAR            = 209;
    const INVALID_LESS              = 210;
    const INVALID_LESS_OR_EQUAL     = 211;
    const INVALID_GREATER           = 212;
    const INVALID_GREATER_OR_EQUAL  = 213;
    const INVALID_DATE              = 214;
    const INVALID_CALLABLE          = 215;
    const INVALID_KEY_NOT_EXISTS    = 216;
    const INVALID_SATISFY           = 217;
    const INVALID_IP                = 218;
    const INVALID_BETWEEN           = 219;
    const INVALID_BETWEEN_EXCLUSIVE = 220;
    const INVALID_EXTENSION         = 222;
    const INVALID_CONSTANT          = 221;

    /**
     * Exception to throw when an assertion failed.
     *
     * @var string
     */
    protected static $exceptionClass = 'Assert\InvalidArgumentException';

    /**
     * Helper method that handles building the assertion failure exceptions.
     * They are returned from this method so that the stack trace still shows
     * the assertions method.
     *
     * @param mixed $value
     * @param string $message
     * @param int $code
     * @param string|null $propertyPath
     * @param array $constraints
     *
     * @return mixed

     */
    protected static function createException($value, $message, $code, $propertyPath, array $constraints = array())
    {
        $exceptionClass = static::$exceptionClass;
        return new $exceptionClass($message, $code, $propertyPath, $value, $constraints);
    }

    /**
     * Assert that two values are equal (using == ).
     *
     * @param mixed $value
     * @param mixed $value2
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function eq($value, $value2, $message = null, $propertyPath = null)
    {
        if ($value != $value2) {
            $message = sprintf(

                $message ?: 'Value "%s" does not equal expected value "%s".',
                static::stringify($value),
                static::stringify($value2)
            );

            throw static::createException($value, $message, static::INVALID_EQ, $propertyPath, array('expected' => $value2));
        }

        return true;
    }

    /**
     * Assert that two values are the same (using ===).
     *
     * @param mixed $value
     * @param mixed $value2
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function same($value, $value2, $message = null, $propertyPath = null)
    {
        if ($value !== $value2) {
            $message = sprintf(

                $message ?: 'Value "%s" is not the same as expected value "%s".',
                static::stringify($value),
                static::stringify($value2)
            );

            throw static::createException($value, $message, static::INVALID_SAME, $propertyPath, array('expected' => $value2));
        }

        return true;
    }

    /**
     * Assert that two values are not equal (using == ).
     *
     * @param mixed $value1
     * @param mixed $value2
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function notEq($value1, $value2, $message = null, $propertyPath = null)
    {
        if ($value1 == $value2) {
            $message = sprintf(

                $message ?: 'Value "%s" is equal to expected value "%s".',
                static::stringify($value1),
                static::stringify($value2)
            );
            throw static::createException($value1, $message, static::INVALID_NOT_EQ, $propertyPath, array('expected' => $value2));
        }

        return true;
    }

    /**
     * Assert that two values are not the same (using === ).
     *
     * @param mixed $value1
     * @param mixed $value2
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function notSame($value1, $value2, $message = null, $propertyPath = null)
    {
        if ($value1 === $value2) {
            $message = sprintf(

                $message ?: 'Value "%s" is the same as expected value "%s".',
                static::stringify($value1),
                static::stringify($value2)
            );
            throw static::createException($value1, $message, static::INVALID_NOT_SAME, $propertyPath, array('expected' => $value2));
        }

        return true;
    }

    /**
     * Assert that value is not in array of choices.
     *
     * @param mixed $value
     * @param array $choices
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function notInArray($value, array $choices, $message = null, $propertyPath = null)
    {
        if (in_array($value, $choices) === true) {
            $message = sprintf(

                $message ?: 'Value "%s" is in given "%s".',
                static::stringify($value),
                static::stringify($choices)
            );
            throw static::createException($value, $message, static::INVALID_VALUE_IN_ARRAY, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that value is a php integer.
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function integer($value, $message = null, $propertyPath = null)
    {
        if (! is_int($value)) {
            $message = sprintf(

                $message ?: 'Value "%s" is not an integer.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_INTEGER, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that value is a php float.
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function float($value, $message = null, $propertyPath = null)
    {
        if (! is_float($value)) {
            $message = sprintf(

                $message ?: 'Value "%s" is not a float.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_FLOAT, $propertyPath);
        }

        return true;
    }

    /**
     * Validates if an integer or integerish is a digit.
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function digit($value, $message = null, $propertyPath = null)
    {
        if (! ctype_digit((string)$value)) {
            $message = sprintf(

                $message ?: 'Value "%s" is not a digit.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_DIGIT, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that value is a php integer'ish.
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function integerish($value, $message = null, $propertyPath = null)
    {
        if (is_object($value) || strval(intval($value)) != $value || is_bool($value) || is_null($value)) {
            $message = sprintf(

                $message ?: 'Value "%s" is not an integer or a number castable to integer.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_INTEGERISH, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that value is php boolean
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function boolean($value, $message = null, $propertyPath = null)
    {
        if (! is_bool($value)) {
            $message = sprintf(

                $message ?: 'Value "%s" is not a boolean.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_BOOLEAN, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that value is a PHP scalar
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function scalar($value, $message = null, $propertyPath = null)
    {
        if (!is_scalar($value)) {
            $message = sprintf(

                $message ?: 'Value "%s" is not a scalar.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_SCALAR, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that value is not empty
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function notEmpty($value, $message = null, $propertyPath = null)
    {
        if (empty($value)) {
            $message = sprintf(

                $message ?: 'Value "%s" is empty, but non empty value was expected.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::VALUE_EMPTY, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that value is empty
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function noContent($value, $message = null, $propertyPath = null)
    {
        if (!empty($value)) {
            $message = sprintf(

                $message ?: 'Value "%s" is not empty, but empty value was expected.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::VALUE_NOT_EMPTY, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that value is null
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function null($value, $message = null, $propertyPath = null)
    {
        if ($value !== null) {
            $message = sprintf(

                $message ?: 'Value "%s" is not null, but null value was expected.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::VALUE_NOT_NULL, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that value is not null
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function notNull($value, $message = null, $propertyPath = null)
    {
        if ($value === null) {
            $message = sprintf(

                $message ?: 'Value "%s" is null, but non null value was expected.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::VALUE_NULL, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that value is a string
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function string($value, $message = null, $propertyPath = null)
    {
        if (! is_string($value)) {
            $message = sprintf(

                $message ?: 'Value "%s" expected to be string, type %s given.',
                static::stringify($value),
                gettype($value)
            );

            throw static::createException($value, $message, static::INVALID_STRING, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that value matches a regex
     *
     * @param mixed $value
     * @param string $pattern
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function regex($value, $pattern, $message = null, $propertyPath = null)
    {
        static::string($value, $message, $propertyPath);

        if (! preg_match($pattern, $value)) {
            $message = sprintf(

                $message ?: 'Value "%s" does not match expression.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_REGEX, $propertyPath, array('pattern' => $pattern));
        }

        return true;
    }

    /**
     * Assert that string has a given length.
     *
     * @param mixed $value
     * @param int $length
     * @param string|null $message
     * @param string|null $propertyPath
     * @param string $encoding
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function length($value, $length, $message = null, $propertyPath = null, $encoding = 'utf8')
    {
        static::string($value, $message, $propertyPath);

        if (mb_strlen($value, $encoding) !== $length) {
            $message = sprintf(

                $message ?: 'Value "%s" has to be %d exactly characters long, but length is %d.',
                static::stringify($value),
                $length,
                mb_strlen($value, $encoding)
            );

            $constraints = array('length' => $length, 'encoding' => $encoding);
            throw static::createException($value, $message, static::INVALID_LENGTH, $propertyPath, $constraints);
        }

        return true;
    }

    /**
     * Assert that a string is at least $minLength chars long.
     *
     * @param mixed $value
     * @param int $minLength
     * @param string|null $message
     * @param string|null $propertyPath
     * @param string $encoding
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function minLength($value, $minLength, $message = null, $propertyPath = null, $encoding = 'utf8')
    {
        static::string($value, $message, $propertyPath);

        if (mb_strlen($value, $encoding) < $minLength) {
            $message = sprintf(

                $message ?: 'Value "%s" is too short, it should have more than %d characters, but only has %d characters.',
                static::stringify($value),
                $minLength,
                mb_strlen($value, $encoding)
            );

            $constraints = array('min_length' => $minLength, 'encoding' => $encoding);
            throw static::createException($value, $message, static::INVALID_MIN_LENGTH, $propertyPath, $constraints);
        }

        return true;
    }

    /**
     * Assert that string value is not longer than $maxLength chars.
     *
     * @param mixed $value
     * @param integer $maxLength
     * @param string|null $message
     * @param string|null $propertyPath
     * @param string $encoding
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function maxLength($value, $maxLength, $message = null, $propertyPath = null, $encoding = 'utf8')
    {
        static::string($value, $message, $propertyPath);

        if (mb_strlen($value, $encoding) > $maxLength) {
            $message = sprintf(

                $message ?: 'Value "%s" is too long, it should have no more than %d characters, but has %d characters.',
                static::stringify($value),
                $maxLength,
                mb_strlen($value, $encoding)
            );

            $constraints = array('max_length' => $maxLength, 'encoding' => $encoding);
            throw static::createException($value, $message, static::INVALID_MAX_LENGTH, $propertyPath, $constraints);
        }

        return true;
    }

    /**
     * Assert that string length is between min,max lengths.
     *
     * @param mixed $value
     * @param integer $minLength
     * @param integer $maxLength
     * @param string|null $message
     * @param string|null $propertyPath
     * @param string $encoding
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function betweenLength($value, $minLength, $maxLength, $message = null, $propertyPath = null, $encoding = 'utf8')
    {
        static::string($value, $message, $propertyPath);

        if (mb_strlen($value, $encoding) < $minLength) {
            $message = sprintf(

                $message ?: 'Value "%s" is too short, it should have at least %d characters, but only has %d characters.',
                static::stringify($value),
                $minLength,
                mb_strlen($value, $encoding)
            );

            $constraints = array('min_length' => $minLength, 'encoding' => $encoding);
            throw static::createException($value, $message, static::INVALID_MIN_LENGTH, $propertyPath, $constraints);
        }

        if (mb_strlen($value, $encoding) > $maxLength) {
            $message = sprintf(

                $message ?: 'Value "%s" is too long, it should have no more than %d characters, but has %d characters.',
                static::stringify($value),
                $maxLength,
                mb_strlen($value, $encoding)
            );

            $constraints = array('max_length' => $maxLength, 'encoding' => $encoding);
            throw static::createException($value, $message, static::INVALID_MAX_LENGTH, $propertyPath, $constraints);
        }

        return true;
    }

    /**
     * Assert that string starts with a sequence of chars.
     *
     * @param mixed $string
     * @param string $needle
     * @param string|null $message
     * @param string|null $propertyPath
     * @param string $encoding
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function startsWith($string, $needle, $message = null, $propertyPath = null, $encoding = 'utf8')
    {
        static::string($string, $message, $propertyPath);

        if (mb_strpos($string, $needle, null, $encoding) !== 0) {
            $message = sprintf(

                $message ?: 'Value "%s" does not start with "%s".',
                static::stringify($string),
                static::stringify($needle)
            );

            $constraints = array('needle' => $needle, 'encoding' => $encoding);
            throw static::createException($string, $message, static::INVALID_STRING_START, $propertyPath, $constraints);
        }

        return true;
    }

    /**
     * Assert that string ends with a sequence of chars.
     *
     * @param mixed $string
     * @param string $needle
     * @param string|null $message
     * @param string|null $propertyPath
     * @param string $encoding
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function endsWith($string, $needle, $message = null, $propertyPath = null, $encoding = 'utf8')
    {
        static::string($string, $message, $propertyPath);

        $stringPosition = mb_strlen($string, $encoding) - mb_strlen($needle, $encoding);

        if (mb_strripos($string, $needle, null, $encoding) !== $stringPosition) {
            $message = sprintf(

                $message ?: 'Value "%s" does not end with "%s".',
                static::stringify($string),
                static::stringify($needle)
            );

            $constraints = array('needle' => $needle, 'encoding' => $encoding);
            throw static::createException($string, $message, static::INVALID_STRING_END, $propertyPath, $constraints);
        }

        return true;
    }

    /**
     * Assert that string contains a sequence of chars.
     *
     * @param mixed $string
     * @param string $needle
     * @param string|null $message
     * @param string|null $propertyPath
     * @param string $encoding
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function contains($string, $needle, $message = null, $propertyPath = null, $encoding = 'utf8')
    {
        static::string($string, $message, $propertyPath);

        if (mb_strpos($string, $needle, null, $encoding) === false) {
            $message = sprintf(

                $message ?: 'Value "%s" does not contain "%s".',
                static::stringify($string),
                static::stringify($needle)
            );

            $constraints = array('needle' => $needle, 'encoding' => $encoding);
            throw static::createException($string, $message, static::INVALID_STRING_CONTAINS, $propertyPath, $constraints);
        }

        return true;
    }

    /**
     * Assert that value is in array of choices.
     *
     * @param mixed $value
     * @param array $choices
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function choice($value, array $choices, $message = null, $propertyPath = null)
    {
        if (! in_array($value, $choices, true)) {
            $message = sprintf(

                $message ?: 'Value "%s" is not an element of the valid values: %s',
                static::stringify($value),
                implode(", ", array_map('Assert\Assertion::stringify', $choices))
            );

            throw static::createException($value, $message, static::INVALID_CHOICE, $propertyPath, array('choices' => $choices));
        }

        return true;
    }

    /**
     * Alias of {@see choice()}
     *
     * @param mixed $value
     * @param array $choices
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     */
    public static function inArray($value, array $choices, $message = null, $propertyPath = null)
    {
        return static::choice($value, $choices, $message, $propertyPath);
    }

    /**
     * Assert that value is numeric.
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function numeric($value, $message = null, $propertyPath = null)
    {
        if (! is_numeric($value)) {
            $message = sprintf(

                $message ?: 'Value "%s" is not numeric.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_NUMERIC, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that value is an array.
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function isArray($value, $message = null, $propertyPath = null)
    {
        if (! is_array($value)) {
            $message = sprintf(

                $message ?: 'Value "%s" is not an array.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_ARRAY, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that value is an array or a traversable object.
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function isTraversable($value, $message = null, $propertyPath = null)
    {
        if (! is_array($value) && ! $value instanceof \Traversable) {
            $message = sprintf(

                $message ?: 'Value "%s" is not an array and does not implement Traversable.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_TRAVERSABLE, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that value is an array or an array-accessible object.
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function isArrayAccessible($value, $message = null, $propertyPath = null)
    {
        if (! is_array($value) && ! $value instanceof \ArrayAccess) {
            $message = sprintf(

                $message ?: 'Value "%s" is not an array and does not implement ArrayAccess.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_ARRAY_ACCESSIBLE, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that key exists in an array
     *
     * @param mixed $value
     * @param string|integer $key
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function keyExists($value, $key, $message = null, $propertyPath = null)
    {
        static::isArray($value, $message, $propertyPath);

        if (! array_key_exists($key, $value)) {
            $message = sprintf(

                $message ?: 'Array does not contain an element with key "%s"',
                static::stringify($key)
            );

            throw static::createException($value, $message, static::INVALID_KEY_EXISTS, $propertyPath, array('key' => $key));
        }

        return true;
    }

    /**
     * Assert that key does not exist in an array
     *
     * @param mixed $value
     * @param string|integer $key
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function keyNotExists($value, $key, $message = null, $propertyPath = null)
    {
        static::isArray($value, $message, $propertyPath);

        if (array_key_exists($key, $value)) {
            $message = sprintf(

                $message ?: 'Array contains an element with key "%s"',
                self::stringify($key)
            );

            throw static::createException($value, $message, static::INVALID_KEY_NOT_EXISTS, $propertyPath, array('key' => $key));
        }

        return true;
    }

    /**
     * Assert that key exists in an array/array-accessible object using isset()
     *
     * @param mixed $value
     * @param string|integer $key
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function keyIsset($value, $key, $message = null, $propertyPath = null)
    {
        static::isArrayAccessible($value, $message, $propertyPath);

        if (! isset($value[$key])) {
            $message = sprintf(

                $message ?: 'The element with key "%s" was not found',
                static::stringify($key)
            );

            throw static::createException($value, $message, static::INVALID_KEY_ISSET, $propertyPath, array('key' => $key));
        }

        return true;
    }

    /**
     * Assert that key exists in an array/array-accessible object and its value is not empty.
     *
     * @param mixed $value
     * @param string|integer $key
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function notEmptyKey($value, $key, $message = null, $propertyPath = null)
    {
        static::keyIsset($value, $key, $message, $propertyPath);
        static::notEmpty($value[$key], $message, $propertyPath);

        return true;
    }

    /**
     * Assert that value is not blank
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function notBlank($value, $message = null, $propertyPath = null)
    {
        if (false === $value || (empty($value) && '0' != $value) || (is_string($value) && '' === trim($value))) {
            $message = sprintf(

                $message ?: 'Value "%s" is blank, but was expected to contain a value.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_NOT_BLANK, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that value is instance of given class-name.
     *
     * @param mixed $value
     * @param string $className
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function isInstanceOf($value, $className, $message = null, $propertyPath = null)
    {
        if (! ($value instanceof $className)) {
            $message = sprintf(

                $message ?: 'Class "%s" was expected to be instanceof of "%s" but is not.',
                static::stringify($value),
                $className
            );

            throw static::createException($value, $message, static::INVALID_INSTANCE_OF, $propertyPath, array('class' => $className));
        }

        return true;
    }

    /**
     * Assert that value is not instance of given class-name.
     *
     * @param mixed $value
     * @param string $className
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function notIsInstanceOf($value, $className, $message = null, $propertyPath = null)
    {
        if ($value instanceof $className) {
            $message = sprintf(

                $message ?: 'Class "%s" was not expected to be instanceof of "%s".',
                static::stringify($value),
                $className
            );

            throw static::createException($value, $message, static::INVALID_NOT_INSTANCE_OF, $propertyPath, array('class' => $className));
        }

        return true;
    }

    /**
     * Assert that value is subclass of given class-name.
     *
     * @param mixed $value
     * @param string $className
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function subclassOf($value, $className, $message = null, $propertyPath = null)
    {
        if (! is_subclass_of($value, $className)) {
            $message = sprintf(

                $message ?: 'Class "%s" was expected to be subclass of "%s".',
                static::stringify($value),
                $className
            );

            throw static::createException($value, $message, static::INVALID_SUBCLASS_OF, $propertyPath, array('class' => $className));
        }

        return true;
    }

    /**
     * Assert that value is in range of numbers.
     *
     * @param mixed $value
     * @param integer $minValue
     * @param integer $maxValue
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function range($value, $minValue, $maxValue, $message = null, $propertyPath = null)
    {
        static::numeric($value, $message, $propertyPath);

        if ($value < $minValue || $value > $maxValue) {
            $message = sprintf(

                $message ?: 'Number "%s" was expected to be at least "%d" and at most "%d".',
                static::stringify($value),
                static::stringify($minValue),
                static::stringify($maxValue)
            );

            throw static::createException($value, $message, static::INVALID_RANGE, $propertyPath, array('min' => $minValue, 'max' => $maxValue));
        }

        return true;
    }

    /**
     * Assert that a value is at least as big as a given limit
     *
     * @param mixed $value
     * @param mixed $minValue
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function min($value, $minValue, $message = null, $propertyPath = null)
    {
        static::numeric($value, $message, $propertyPath);

        if ($value < $minValue) {
            $message = sprintf(

                $message ?: 'Number "%s" was expected to be at least "%s".',
                static::stringify($value),
                static::stringify($minValue)
            );

            throw static::createException($value, $message, static::INVALID_MIN, $propertyPath, array('min' => $minValue));
        }

        return true;
    }

    /**
     * Assert that a number is smaller as a given limit
     *
     * @param mixed $value
     * @param mixed $maxValue
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function max($value, $maxValue, $message = null, $propertyPath = null)
    {
        static::numeric($value, $message, $propertyPath);

        if ($value > $maxValue) {
            $message = sprintf(

                $message ?: 'Number "%s" was expected to be at most "%s".',
                static::stringify($value),
                static::stringify($maxValue)
            );

            throw static::createException($value, $message, static::INVALID_MAX, $propertyPath, array('max' => $maxValue));
        }

        return true;
    }

    /**
     * Assert that a file exists
     *
     * @param string $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function file($value, $message = null, $propertyPath = null)
    {
        static::string($value, $message, $propertyPath);
        static::notEmpty($value, $message, $propertyPath);

        if (! is_file($value)) {
            $message = sprintf(

                $message ?: 'File "%s" was expected to exist.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_FILE, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that a directory exists
     *
     * @param string $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function directory($value, $message = null, $propertyPath = null)
    {
        static::string($value, $message, $propertyPath);

        if (! is_dir($value)) {
            $message = sprintf(

                $message ?: 'Path "%s" was expected to be a directory.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_DIRECTORY, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that the value is something readable
     *
     * @param string $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function readable($value, $message = null, $propertyPath = null)
    {
        static::string($value, $message, $propertyPath);

        if (! is_readable($value)) {
            $message = sprintf(

                $message ?: 'Path "%s" was expected to be readable.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_READABLE, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that the value is something writeable
     *
     * @param string $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function writeable($value, $message = null, $propertyPath = null)
    {
        static::string($value, $message, $propertyPath);

        if (! is_writeable($value)) {
            $message = sprintf(

                $message ?: 'Path "%s" was expected to be writeable.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_WRITEABLE, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that value is an email adress (using input_filter/FILTER_VALIDATE_EMAIL).
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function email($value, $message = null, $propertyPath = null)
    {
        static::string($value, $message, $propertyPath);

        if (! filter_var($value, FILTER_VALIDATE_EMAIL)) {
            $message = sprintf(

                $message ?: 'Value "%s" was expected to be a valid e-mail address.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_EMAIL, $propertyPath);
        } else {
            $host = substr($value, strpos($value, '@') + 1);

            // Likely not a FQDN, bug in PHP FILTER_VALIDATE_EMAIL prior to PHP 5.3.3
            if (version_compare(PHP_VERSION, '5.3.3', '<') && strpos($host, '.') === false) {
                $message = sprintf(

                    $message ?: 'Value "%s" was expected to be a valid e-mail address.',
                    static::stringify($value)
                );

                throw static::createException($value, $message, static::INVALID_EMAIL, $propertyPath);
            }
        }

        return true;
    }

    /**
     * Assert that value is an URL.
     *
     * This code snipped was taken from the Symfony project and modified to the special demands of this method.
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     *
     *
     * @link https://github.com/symfony/Validator/blob/master/Constraints/UrlValidator.php
     * @link https://github.com/symfony/Validator/blob/master/Constraints/Url.php
     */
    public static function url($value, $message = null, $propertyPath = null)
    {
        static::string($value, $message, $propertyPath);

        $protocols = array('http', 'https');

        $pattern = '~^
            (%s)://                                 # protocol
            (([\pL\pN-]+:)?([\pL\pN-]+)@)?          # basic auth
            (
                ([\pL\pN\pS-\.])+(\.?([\pL\pN]|xn\-\-[\pL\pN-]+)+\.?) # a domain name
                    |                                                 # or
                \d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}                    # an IP address
                    |                                                 # or
                \[
                    (?:(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){6})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:::(?:(?:(?:[0-9a-f]{1,4})):){5})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:[0-9a-f]{1,4})))?::(?:(?:(?:[0-9a-f]{1,4})):){4})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,1}(?:(?:[0-9a-f]{1,4})))?::(?:(?:(?:[0-9a-f]{1,4})):){3})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,2}(?:(?:[0-9a-f]{1,4})))?::(?:(?:(?:[0-9a-f]{1,4})):){2})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,3}(?:(?:[0-9a-f]{1,4})))?::(?:(?:[0-9a-f]{1,4})):)(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,4}(?:(?:[0-9a-f]{1,4})))?::)(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,5}(?:(?:[0-9a-f]{1,4})))?::)(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,6}(?:(?:[0-9a-f]{1,4})))?::))))
                \]  # an IPv6 address
            )
            (:[0-9]+)?                              # a port (optional)
            (/?|/\S+|\?\S*|\#\S*)                   # a /, nothing, a / with something, a query or a fragment
        $~ixu';

        $pattern = sprintf($pattern, implode('|', $protocols));

        if (!preg_match($pattern, $value)) {
            $message = sprintf(

                $message ?: 'Value "%s" was expected to be a valid URL starting with http or https',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_URL, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that value is alphanumeric.
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function alnum($value, $message = null, $propertyPath = null)
    {
        try {
            static::regex($value, '(^([a-zA-Z]{1}[a-zA-Z0-9]*)$)', $message, $propertyPath);
        } catch (AssertionFailedException $e) {
            $message = sprintf(

                $message ?: 'Value "%s" is not alphanumeric, starting with letters and containing only letters and numbers.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_ALNUM, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that the value is boolean True.
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function true($value, $message = null, $propertyPath = null)
    {
        if ($value !== true) {
            $message = sprintf(

                $message ?: 'Value "%s" is not TRUE.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_TRUE, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that the value is boolean False.
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function false($value, $message = null, $propertyPath = null)
    {
        if ($value !== false) {
            $message = sprintf(

                $message ?: 'Value "%s" is not FALSE.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_FALSE, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that the class exists.
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function classExists($value, $message = null, $propertyPath = null)
    {
        if (! class_exists($value)) {
            $message = sprintf(

                $message ?: 'Class "%s" does not exist.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_CLASS, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that the interface exists.
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function interfaceExists($value, $message = null, $propertyPath = null)
    {
        if (! interface_exists($value)) {
            $message = sprintf(

                $message ?: 'Interface "%s" does not exist.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_INTERFACE, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that the class implements the interface
     *
     * @param mixed $class
     * @param string $interfaceName
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function implementsInterface($class, $interfaceName, $message = null, $propertyPath = null)
    {
        $reflection = new \ReflectionClass($class);
        if (! $reflection->implementsInterface($interfaceName)) {
            $message = sprintf(

                $message ?: 'Class "%s" does not implement interface "%s".',
                static::stringify($class),
                static::stringify($interfaceName)
            );

            throw static::createException($class, $message, static::INTERFACE_NOT_IMPLEMENTED, $propertyPath, array('interface' => $interfaceName));
        }

        return true;
    }

    /**
     * Assert that the given string is a valid json string.
     *
     * NOTICE:
     * Since this does a json_decode to determine its validity
     * you probably should consider, when using the variable
     * content afterwards, just to decode and check for yourself instead
     * of using this assertion.
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function isJsonString($value, $message = null, $propertyPath = null)
    {
        if (null === json_decode($value) && JSON_ERROR_NONE !== json_last_error()) {
            $message = sprintf(

                $message ?: 'Value "%s" is not a valid JSON string.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_JSON_STRING, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that the given string is a valid UUID
     *
     * Uses code from {@link https://github.com/ramsey/uuid} that is MIT licensed.
     *
     * @param string $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function uuid($value, $message = null, $propertyPath = null)
    {
        $value = str_replace(array('urn:', 'uuid:', '{', '}'), '', $value);


        if ($value === '00000000-0000-0000-0000-000000000000') {
            return true;
        }

        if (!preg_match('/^[0-9A-Fa-f]{8}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{12}$/', $value)) {
            $message = sprintf(

                $message ?: 'Value "%s" is not a valid UUID.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_UUID, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that the given string is a valid E164 Phone Number
     *
     * @link https://en.wikipedia.org/wiki/E.164
     *
     * @param string $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function e164($value, $message = null, $propertyPath = null)
    {
        if (!preg_match('/^\+?[1-9]\d{1,14}$/', $value)) {
            $message = sprintf(

                $message ?: 'Value "%s" is not a valid E164.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_E164, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that the count of countable is equal to count.
     *
     * @param array|\Countable $countable
     * @param int              $count
     * @param string           $message

     * @param string           $propertyPath

     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function count($countable, $count, $message = null, $propertyPath = null)
    {
        if ($count !== count($countable)) {
            $message = sprintf(

                $message ?: 'List does not contain exactly "%d" elements.',
                static::stringify($count)
            );

            throw static::createException($countable, $message, static::INVALID_COUNT, $propertyPath, array('count' => $count));
        }

        return true;
    }

    /**
     * static call handler to implement:
     *  - "null or assertion" delegation
     *  - "all" delegation
     *
     * @param string $method
     * @param array $args
     *
     * @return bool|mixed
     */
    public static function __callStatic($method, $args)
    {
        if (strpos($method, "nullOr") === 0) {
            if (! array_key_exists(0, $args)) {
                throw new BadMethodCallException("Missing the first argument.");
            }

            if ($args[0] === null) {
                return true;
            }

            $method = substr($method, 6);


            return call_user_func_array(array(get_called_class(), $method), $args);
        }

        if (strpos($method, "all") === 0) {
            if (! array_key_exists(0, $args)) {
                throw new BadMethodCallException("Missing the first argument.");
            }

            static::isTraversable($args[0]);

            $method      = substr($method, 3);

            $values      = array_shift($args);
            $calledClass = get_called_class();

            foreach ($values as $value) {
                call_user_func_array(array($calledClass, $method), array_merge(array($value), $args));
            }

            return true;
        }

        throw new BadMethodCallException("No assertion Assertion#" . $method . " exists.");
    }

    /**
     * Determines if the values array has every choice as key and that this choice has content.
     *
     * @param array $values
     * @param array $choices
     * @param null  $message
     * @param null  $propertyPath
     * @return bool
     */
    public static function choicesNotEmpty(array $values, array $choices, $message = null, $propertyPath = null)
    {
        self::notEmpty($values, $message, $propertyPath);

        foreach ($choices as $choice) {
            self::notEmptyKey($values, $choice, $message, $propertyPath);
        }

        return true;
    }

    /**
     * Determines that the named method is defined in the provided object.
     *
     * @param string $value
     * @param mixed  $object
     * @param null   $message
     * @param null   $propertyPath
     * @return bool
     * @throws
     */
    public static function methodExists($value, $object, $message = null, $propertyPath = null)
    {
        self::isObject($object, $message, $propertyPath);

        if (!method_exists($object, $value)) {
            $message = sprintf(

                $message ?: 'Expected "%s" does not exist in provided object.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_METHOD, $propertyPath);
        }

        return true;
    }

    /**
     * Determines that the provided value is an object.
     *
     * @param mixed $value
     * @param null  $message
     * @param null  $propertyPath
     * @return bool
     */
    public static function isObject($value, $message = null, $propertyPath = null)
    {
        if (!is_object($value)) {
            $message = sprintf(

                $message ?: 'Provided "%s" is not a valid object.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_OBJECT, $propertyPath);
        }

        return true;
    }

    /**
     * Determines if the value is less than given limit.
     *
     * @param mixed $value
     * @param mixed $limit
     * @param null  $message
     * @param null  $propertyPath
     * @return bool
     */
    public static function lessThan($value, $limit, $message = null, $propertyPath = null)
    {
        if ($value >= $limit) {
            $message = sprintf(

                $message ?: 'Provided "%s" is not less than "%s".',
                static::stringify($value),
                static::stringify($limit)
            );

            throw static::createException($value, $message, static::INVALID_LESS, $propertyPath);
        }

        return true;
    }

    /**
     * Determines if the value is less or than given limit.
     *
     * @param mixed $value
     * @param mixed $limit
     * @param null  $message
     * @param null  $propertyPath
     * @return bool
     */
    public static function lessOrEqualThan($value, $limit, $message = null, $propertyPath = null)
    {
        if ($value > $limit) {
            $message = sprintf(

                $message ?: 'Provided "%s" is not less or equal than "%s".',
                static::stringify($value),
                static::stringify($limit)
            );

            throw static::createException($value, $message, static::INVALID_LESS_OR_EQUAL, $propertyPath);
        }

        return true;
    }

    /**
     * Determines if the value is greater than given limit.
     *
     * @param mixed $value
     * @param mixed $limit
     * @param null  $message
     * @param null  $propertyPath
     * @return bool
     */
    public static function greaterThan($value, $limit, $message = null, $propertyPath = null)
    {
        if ($value <= $limit) {
            $message = sprintf(

                $message ?: 'Provided "%s" is not greater than "%s".',
                static::stringify($value),
                static::stringify($limit)
            );

            throw static::createException($value, $message, static::INVALID_GREATER, $propertyPath);
        }

        return true;
    }

    /**
     * Determines if the value is greater or equal than given limit.
     *
     * @param mixed $value
     * @param mixed $limit
     * @param null  $message
     * @param null  $propertyPath
     * @return bool
     */
    public static function greaterOrEqualThan($value, $limit, $message = null, $propertyPath = null)
    {
        if ($value < $limit) {
            $message = sprintf(

                $message ?: 'Provided "%s" is not greater or equal than "%s".',
                static::stringify($value),
                static::stringify($limit)
            );

            throw static::createException($value, $message, static::INVALID_GREATER_OR_EQUAL, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that a value is greater or equal than a lower limit, and less than or equal to an upper limit.
     *
     * @param mixed $value
     * @param mixed $lowerLimit
     * @param mixed $upperLimit
     * @param string $message

     * @param string $propertyPath

     * @return bool
     */
    public static function between($value, $lowerLimit, $upperLimit, $message = null, $propertyPath = null)
    {
        if ($lowerLimit > $value || $value > $upperLimit) {
            $message = sprintf(

                $message ?: 'Provided "%s" is neither greater than or equal to "%s" nor less than or equal to "%s".',
                static::stringify($value),
                static::stringify($lowerLimit),
                static::stringify($upperLimit)
            );

            throw static::createException($value, $message, static::INVALID_BETWEEN, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that a value is greater than a lower limit, and less than an upper limit.
     *
     * @param mixed $value
     * @param mixed $lowerLimit
     * @param mixed $upperLimit
     * @param string $message

     * @param string $propertyPath

     * @return bool
     */
    public static function betweenExclusive($value, $lowerLimit, $upperLimit, $message = null, $propertyPath = null)
    {
        if ($lowerLimit >= $value || $value >= $upperLimit) {
            $message = sprintf(

                $message ?: 'Provided "%s" is neither greater than "%s" nor less than "%s".',
                static::stringify($value),
                static::stringify($lowerLimit),
                static::stringify($upperLimit)
            );

            throw static::createException($value, $message, static::INVALID_BETWEEN_EXCLUSIVE, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that extension is loaded.
     *
     * @param mixed $value
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function extensionLoaded($value, $message = null, $propertyPath = null)
    {
        if (! extension_loaded($value)) {
            $message = sprintf(

                $message ?: 'Extension "%s" is required.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_EXTENSION, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that date is valid and corresponds to the given format.
     *
     * @param string      $value
     * @param string      $format supports all of the options date(), except for the following:
     *                            N, w, W, t, L, o, B, a, A, g, h, I, O, P, Z, c, r.
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     *
     * @link http://php.net/manual/function.date.php#refsect1-function.date-parameters
     */
     public static function date($value, $format, $message = null, $propertyPath = null)
     {
         static::string($value, $message, $propertyPath);
         static::string($format, $message, $propertyPath);

         $dateTime = \DateTime::createFromFormat($format, $value);

         if (false === $dateTime || $value !== $dateTime->format($format)) {
             $message = sprintf(

                 $message ?: 'Date "%s" is invalid or does not match format "%s".',
                 static::stringify($value),
                 static::stringify($format)
             );

             throw static::createException($value, $message, static::INVALID_DATE, $propertyPath, array('format' => $format));
         }

         return true;
     }

    /**
     * Determines that the provided value is callable.
     *
     * @param mixed $value
     * @param null $message
     * @param null $propertyPath
     * @return bool
     */
    public static function isCallable($value, $message = null, $propertyPath = null)
    {
        if (!is_callable($value)) {
            $message = sprintf(

                $message ?: 'Provided "%s" is not a callable.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_CALLABLE, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that the provided value is valid according to a callback.
     *
     * If the callback returns `false` the assertion will fail.
     *
     * @param mixed $value
     * @param callable $callback
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     */
    public static function satisfy($value, $callback, $message = null, $propertyPath = null)
    {
        static::isCallable($callback);

        if (call_user_func($callback, $value) === false) {
            $message = sprintf(

                $message ?: 'Provided "%s" is invalid according to custom rule.',
                static::stringify($value)
            );

            throw static::createException($value, $message, static::INVALID_SATISFY, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that value is an IPv4 or IPv6 address
     * (using input_filter/FILTER_VALIDATE_IP).
     *
     * @param string      $value
     * @param null|int    $flag
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     *
     * @link http://php.net/manual/filter.filters.flags.php
     */
    public static function ip($value, $flag = null, $message = null, $propertyPath = null)
    {
        self::string($value, $message, $propertyPath);
        if (!filter_var($value, FILTER_VALIDATE_IP, $flag)) {
            $message = sprintf(

                $message ?: 'Value "%s" was expected to be a valid IP address.',
                self::stringify($value)
            );
            throw static::createException($value, $message, static::INVALID_IP, $propertyPath);
        }

        return true;
    }

    /**
     * Assert that value is an IPv4 address
     * (using input_filter/FILTER_VALIDATE_IP).
     *
     * @param string      $value
     * @param null|int    $flag
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     *
     * @link http://php.net/manual/filter.filters.flags.php
     */
    public static function ipv4($value, $flag = null, $message = null, $propertyPath = null)
    {
        self::ip($value, $flag | FILTER_FLAG_IPV4, $message ?: 'Value "%s" was expected to be a valid IPv4 address.', $propertyPath);

        return true;
    }

    /**
     * Assert that value is an IPv6 address
     * (using input_filter/FILTER_VALIDATE_IP).
     *
     * @param string      $value
     * @param null|int    $flag
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     *
     * @link http://php.net/manual/filter.filters.flags.php
     */
    public static function ipv6($value, $flag = null, $message = null, $propertyPath = null)
    {
        self::ip($value, $flag | FILTER_FLAG_IPV6, $message ?: 'Value "%s" was expected to be a valid IPv6 address.', $propertyPath);

        return true;
    }

    /**
     * Make a string version of a value.
     *
     * @param mixed $value
     * @return string
     */
    protected static function stringify($value)
    {
        if (is_bool($value)) {
            return $value ? '<TRUE>' : '<FALSE>';
        }

        if (is_scalar($value)) {
            $val = (string)$value;

            if (strlen($val) > 100) {
                $val = substr($val, 0, 97) . '...';
            }

            return $val;
        }

        if (is_array($value)) {
            return '<ARRAY>';
        }

        if (is_object($value)) {
            return get_class($value);
        }

        if (is_resource($value)) {
            return get_resource_type($value);
        }

        if ($value === null) {
            return '<NULL>';
        }

        return gettype($value);
    }

    /**
     * Assert that a constant is defined.
     *
     * @param mixed $constant
     * @param string|null $message
     * @param string|null $propertyPath
     * @return bool
     * @throws \Assert\AssertionFailedException
     */
    public static function defined($constant, $message = null, $propertyPath = null)
    {
        if (!defined($constant)) {
            $message = sprintf($message ?: 'Value "%s" expected to be a defined constant.', $constant);


            throw static::createException($constant, $message, static::INVALID_CONSTANT, $propertyPath);
        }

        return true;
    }
}

beberlei / assert

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