Complex classes like Container often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Container, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 27 | class Container |
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| 28 | { |
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| 29 | const BLOCKS = \Mockery::BLOCKS; |
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| 30 | |||
| 31 | /** |
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| 32 | * Store of mock objects |
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| 33 | * |
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| 34 | * @var array |
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| 35 | */ |
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| 36 | protected $_mocks = array(); |
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| 37 | |||
| 38 | /** |
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| 39 | * Order number of allocation |
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| 40 | * |
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| 41 | * @var int |
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| 42 | */ |
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| 43 | protected $_allocatedOrder = 0; |
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| 44 | |||
| 45 | /** |
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| 46 | * Current ordered number |
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| 47 | * |
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| 48 | * @var int |
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| 49 | */ |
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| 50 | protected $_currentOrder = 0; |
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| 51 | |||
| 52 | /** |
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| 53 | * Ordered groups |
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| 54 | * |
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| 55 | * @var array |
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| 56 | */ |
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| 57 | protected $_groups = array(); |
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| 58 | |||
| 59 | /** |
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| 60 | * @var Generator\Generator |
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| 61 | */ |
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| 62 | protected $_generator; |
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| 63 | |||
| 64 | /** |
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| 65 | * @var LoaderInterface |
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| 66 | */ |
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| 67 | protected $_loader; |
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| 68 | |||
| 69 | /** |
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| 70 | * @var array |
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| 71 | */ |
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| 72 | protected $_namedMocks = array(); |
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| 73 | |||
| 74 | 419 | public function __construct(Generator $generator = null, LoaderInterface $loader = null) |
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| 75 | { |
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| 76 | 419 | $this->_generator = $generator ?: \Mockery::getDefaultGenerator(); |
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| 77 | 419 | $this->_loader = $loader ?: \Mockery::getDefaultLoader(); |
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| 78 | 419 | } |
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| 79 | |||
| 80 | /** |
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| 81 | * Generates a new mock object for this container |
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| 82 | * |
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| 83 | * I apologies in advance for this. A God Method just fits the API which |
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| 84 | * doesn't require differentiating between classes, interfaces, abstracts, |
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| 85 | * names or partials - just so long as it's something that can be mocked. |
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| 86 | * I'll refactor it one day so it's easier to follow. |
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| 87 | * |
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| 88 | * @throws Exception\RuntimeException |
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| 89 | * @throws Exception |
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| 90 | * @return \Mockery\Mock |
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| 91 | */ |
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| 92 | 412 | public function mock() |
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| 93 | { |
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| 94 | 412 | $expectationClosure = null; |
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| 95 | 412 | $quickdefs = array(); |
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| 96 | 412 | $constructorArgs = null; |
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| 97 | 412 | $blocks = array(); |
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| 98 | 412 | $args = func_get_args(); |
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| 99 | |||
| 100 | 412 | if (count($args) > 1) { |
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| 101 | 25 | $finalArg = end($args); |
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| 102 | 25 | reset($args); |
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| 103 | 25 | if (is_callable($finalArg) && is_object($finalArg)) { |
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| 104 | 1 | $expectationClosure = array_pop($args); |
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| 105 | 1 | } |
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| 106 | 25 | } |
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| 107 | |||
| 108 | 412 | $builder = new MockConfigurationBuilder(); |
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| 109 | |||
| 110 | 412 | foreach ($args as $k => $arg) { |
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| 111 | 401 | if ($arg instanceof MockConfigurationBuilder) { |
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| 112 | 5 | $builder = $arg; |
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| 113 | 5 | unset($args[$k]); |
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| 114 | 5 | } |
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| 115 | 412 | } |
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| 116 | 412 | reset($args); |
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| 117 | |||
| 118 | 412 | $builder->setParameterOverrides(\Mockery::getConfiguration()->getInternalClassMethodParamMaps()); |
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| 119 | |||
| 120 | 412 | while (count($args) > 0) { |
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| 121 | 399 | $arg = current($args); |
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| 122 | // check for multiple interfaces |
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| 123 | 399 | if (is_string($arg) && strpos($arg, ',') && !strpos($arg, ']')) { |
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| 124 | 6 | $interfaces = explode(',', str_replace(' ', '', $arg)); |
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| 125 | 6 | foreach ($interfaces as $i) { |
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| 126 | 6 | if (!interface_exists($i, true) && !class_exists($i, true)) { |
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| 127 | 1 | throw new \Mockery\Exception( |
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| 128 | 'Class name follows the format for defining multiple' |
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| 129 | . ' interfaces, however one or more of the interfaces' |
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| 130 | 1 | . ' do not exist or are not included, or the base class' |
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| 131 | 1 | . ' (which you may omit from the mock definition) does not exist' |
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| 132 | 1 | ); |
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| 133 | } |
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| 134 | 5 | } |
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| 135 | 5 | $builder->addTargets($interfaces); |
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| 136 | 5 | array_shift($args); |
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| 137 | |||
| 138 | 5 | continue; |
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| 139 | 394 | } elseif (is_string($arg) && substr($arg, 0, 6) == 'alias:') { |
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| 140 | 4 | $name = array_shift($args); |
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| 141 | 4 | $name = str_replace('alias:', '', $name); |
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| 142 | 4 | $builder->addTarget('stdClass'); |
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| 143 | 4 | $builder->setName($name); |
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| 144 | 4 | continue; |
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| 145 | 390 | } elseif (is_string($arg) && substr($arg, 0, 9) == 'overload:') { |
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| 146 | 11 | $name = array_shift($args); |
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| 147 | 11 | $name = str_replace('overload:', '', $name); |
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| 148 | 11 | $builder->setInstanceMock(true); |
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| 149 | 11 | $builder->addTarget('stdClass'); |
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| 150 | 11 | $builder->setName($name); |
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| 151 | 11 | continue; |
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| 152 | 379 | } elseif (is_string($arg) && substr($arg, strlen($arg)-1, 1) == ']') { |
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| 153 | 17 | $parts = explode('[', $arg); |
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| 154 | 17 | if (!class_exists($parts[0], true) && !interface_exists($parts[0], true)) { |
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| 155 | 1 | throw new \Mockery\Exception('Can only create a partial mock from' |
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| 156 | 1 | . ' an existing class or interface'); |
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| 157 | } |
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| 158 | 16 | $class = $parts[0]; |
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| 159 | 16 | $parts[1] = str_replace(' ', '', $parts[1]); |
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| 160 | 16 | $partialMethods = explode(',', strtolower(rtrim($parts[1], ']'))); |
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| 161 | 16 | $builder->addTarget($class); |
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| 162 | 16 | $builder->setWhiteListedMethods($partialMethods); |
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| 163 | 16 | array_shift($args); |
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| 164 | 16 | continue; |
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| 165 | 368 | } elseif (is_string($arg) && (class_exists($arg, true) || interface_exists($arg, true))) { |
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| 166 | 327 | $class = array_shift($args); |
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| 167 | 327 | $builder->addTarget($class); |
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| 168 | 327 | continue; |
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| 169 | 63 | } elseif (is_string($arg)) { |
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| 170 | 18 | if (!$this->isValidClassName($arg)) { |
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| 171 | 1 | throw new \Mockery\Exception('Class name contains invalid characters'); |
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| 172 | } |
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| 173 | 17 | $class = array_shift($args); |
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| 174 | 17 | $builder->addTarget($class); |
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| 175 | 17 | continue; |
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| 176 | 46 | } elseif (is_object($arg)) { |
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| 177 | 24 | $partial = array_shift($args); |
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| 178 | 24 | $builder->addTarget($partial); |
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| 179 | 24 | continue; |
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| 180 | 24 | } elseif (is_array($arg) && !empty($arg) && array_keys($arg) !== range(0, count($arg) - 1)) { |
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| 181 | // if associative array |
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| 182 | 15 | if (array_key_exists(self::BLOCKS, $arg)) { |
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| 183 | 2 | $blocks = $arg[self::BLOCKS]; |
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| 184 | 2 | } |
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| 185 | 15 | unset($arg[self::BLOCKS]); |
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| 186 | 15 | $quickdefs = array_shift($args); |
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| 187 | 15 | continue; |
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| 188 | 10 | } elseif (is_array($arg)) { |
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| 189 | 10 | $constructorArgs = array_shift($args); |
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| 190 | 10 | continue; |
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| 191 | } |
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| 192 | |||
| 193 | throw new \Mockery\Exception( |
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| 194 | 'Unable to parse arguments sent to ' |
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| 195 | . get_class($this) . '::mock()' |
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| 196 | ); |
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| 197 | } |
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| 198 | |||
| 199 | 409 | $builder->addBlackListedMethods($blocks); |
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| 200 | |||
| 201 | 409 | if (!is_null($constructorArgs)) { |
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| 202 | 10 | $builder->addBlackListedMethod("__construct"); // we need to pass through |
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| 203 | 10 | } else { |
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| 204 | 399 | $builder->setMockOriginalDestructor(true); |
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| 205 | } |
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| 206 | |||
| 207 | 409 | if (!empty($partialMethods) && $constructorArgs === null) { |
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| 208 | 11 | $constructorArgs = array(); |
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| 209 | 11 | } |
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| 210 | |||
| 211 | 409 | $config = $builder->getMockConfiguration(); |
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| 212 | |||
| 213 | 409 | $this->checkForNamedMockClashes($config); |
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| 214 | |||
| 215 | 409 | $def = $this->getGenerator()->generate($config); |
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| 216 | |||
| 217 | 408 | if (class_exists($def->getClassName(), $attemptAutoload = false)) { |
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| 218 | 25 | $rfc = new \ReflectionClass($def->getClassName()); |
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| 219 | 25 | if (!$rfc->implementsInterface("Mockery\MockInterface")) { |
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| 220 | 1 | throw new \Mockery\Exception\RuntimeException("Could not load mock {$def->getClassName()}, class already exists"); |
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| 221 | } |
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| 222 | 24 | } |
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| 223 | |||
| 224 | 407 | $this->getLoader()->load($def); |
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| 225 | |||
| 226 | 407 | $mock = $this->_getInstance($def->getClassName(), $constructorArgs); |
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| 227 | 407 | $mock->mockery_init($this, $config->getTargetObject()); |
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| 228 | |||
| 229 | 407 | if (!empty($quickdefs)) { |
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| 230 | 15 | $mock->shouldReceive($quickdefs)->byDefault(); |
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| 231 | 15 | } |
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| 232 | 407 | if (!empty($expectationClosure)) { |
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| 233 | 1 | $expectationClosure($mock); |
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| 234 | 1 | } |
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| 235 | 407 | $this->rememberMock($mock); |
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| 236 | 407 | return $mock; |
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| 237 | } |
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| 238 | |||
| 239 | public function instanceMock() |
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| 242 | |||
| 243 | 407 | public function getLoader() |
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| 247 | |||
| 248 | 409 | public function getGenerator() |
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| 252 | |||
| 253 | /** |
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| 254 | * @param string $method |
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| 255 | * @return string|null |
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| 256 | */ |
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| 257 | 7 | public function getKeyOfDemeterMockFor($method) |
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| 258 | { |
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| 259 | 7 | $keys = array_keys($this->_mocks); |
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| 260 | 7 | $match = preg_grep("/__demeter_{$method}$/", $keys); |
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| 261 | 7 | if (count($match) == 1) { |
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| 262 | 6 | $res = array_values($match); |
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| 263 | 6 | if (count($res) > 0) { |
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| 264 | 6 | return $res[0]; |
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| 265 | } |
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| 266 | } |
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| 267 | 1 | return null; |
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| 268 | } |
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| 269 | |||
| 270 | /** |
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| 271 | * @return array |
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| 272 | */ |
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| 273 | 5 | public function getMocks() |
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| 277 | |||
| 278 | /** |
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| 279 | * Tear down tasks for this container |
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| 280 | * |
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| 281 | * @throws \Exception |
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| 282 | * @return void |
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| 283 | */ |
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| 284 | 404 | public function mockery_teardown() |
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| 285 | { |
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| 286 | try { |
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| 287 | 404 | $this->mockery_verify(); |
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| 288 | 404 | } catch (\Exception $e) { |
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| 289 | $this->mockery_close(); |
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| 290 | throw $e; |
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| 291 | } |
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| 292 | 404 | } |
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| 293 | |||
| 294 | /** |
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| 295 | * Verify the container mocks |
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| 296 | * |
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| 297 | * @return void |
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| 298 | */ |
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| 299 | 404 | public function mockery_verify() |
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| 300 | { |
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| 301 | 404 | foreach ($this->_mocks as $mock) { |
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| 302 | 142 | $mock->mockery_verify(); |
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| 303 | 404 | } |
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| 304 | 404 | } |
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| 305 | |||
| 306 | /** |
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| 307 | * Reset the container to its original state |
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| 308 | * |
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| 309 | * @return void |
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| 310 | */ |
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| 311 | 411 | public function mockery_close() |
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| 312 | { |
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| 313 | 411 | foreach ($this->_mocks as $mock) { |
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| 314 | 391 | $mock->mockery_teardown(); |
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| 315 | 411 | } |
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| 316 | 411 | $this->_mocks = array(); |
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| 317 | 411 | } |
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| 318 | |||
| 319 | /** |
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| 320 | * Fetch the next available allocation order number |
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| 321 | * |
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| 322 | * @return int |
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| 323 | */ |
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| 324 | 1 | public function mockery_allocateOrder() |
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| 325 | { |
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| 326 | 1 | $this->_allocatedOrder += 1; |
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| 327 | 1 | return $this->_allocatedOrder; |
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| 328 | } |
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| 329 | |||
| 330 | /** |
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| 331 | * Set ordering for a group |
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| 332 | * |
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| 333 | * @param mixed $group |
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| 334 | * @param int $order |
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| 335 | */ |
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| 336 | public function mockery_setGroup($group, $order) |
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| 340 | |||
| 341 | /** |
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| 342 | * Fetch array of ordered groups |
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| 343 | * |
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| 344 | * @return array |
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| 345 | */ |
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| 346 | 1 | public function mockery_getGroups() |
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| 350 | |||
| 351 | /** |
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| 352 | * Set current ordered number |
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| 353 | * |
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| 354 | * @param int $order |
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| 355 | * @return int The current order number that was set |
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| 356 | */ |
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| 357 | 1 | public function mockery_setCurrentOrder($order) |
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| 362 | |||
| 363 | /** |
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| 364 | * Get current ordered number |
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| 365 | * |
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| 366 | * @return int |
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| 367 | */ |
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| 368 | 138 | public function mockery_getCurrentOrder() |
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| 369 | 138 | { |
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| 370 | return $this->_currentOrder; |
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| 371 | } |
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| 372 | |||
| 373 | /** |
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| 374 | * Validate the current mock's ordering |
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| 375 | * |
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| 376 | * @param string $method |
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| 377 | * @param int $order |
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| 378 | * @throws \Mockery\Exception |
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| 379 | * @return void |
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| 380 | */ |
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| 381 | 1 | public function mockery_validateOrder($method, $order, \Mockery\MockInterface $mock) |
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| 396 | |||
| 397 | /** |
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| 398 | * Gets the count of expectations on the mocks |
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| 399 | * |
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| 400 | * @return int |
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| 401 | */ |
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| 402 | 404 | public function mockery_getExpectationCount() |
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| 403 | { |
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| 404 | 404 | $count = 0; |
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| 405 | 404 | foreach ($this->_mocks as $mock) { |
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| 406 | 24 | $count += $mock->mockery_getExpectationCount(); |
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| 407 | 404 | } |
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| 408 | 404 | return $count; |
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| 409 | } |
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| 410 | |||
| 411 | /** |
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| 412 | * Store a mock and set its container reference |
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| 413 | * |
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| 414 | * @param \Mockery\Mock |
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| 415 | * @return \Mockery\Mock |
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| 416 | */ |
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| 417 | 407 | public function rememberMock(\Mockery\MockInterface $mock) |
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| 430 | |||
| 431 | /** |
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| 432 | * Retrieve the last remembered mock object, which is the same as saying |
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| 433 | * retrieve the current mock being programmed where you have yet to call |
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| 434 | * mock() to change it - thus why the method name is "self" since it will be |
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| 435 | * be used during the programming of the same mock. |
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| 436 | * |
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| 437 | * @return \Mockery\Mock |
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| 438 | */ |
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| 439 | 2 | public function self() |
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| 445 | |||
| 446 | /** |
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| 447 | * Return a specific remembered mock according to the array index it |
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| 448 | * was stored to in this container instance |
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| 449 | * |
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| 450 | * @return \Mockery\Mock |
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| 451 | */ |
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| 452 | 11 | public function fetchMock($reference) |
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| 458 | |||
| 459 | 407 | protected function _getInstance($mockName, $constructorArgs = null) |
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| 460 | { |
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| 461 | 407 | if ($constructorArgs !== null) { |
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| 462 | 21 | $r = new \ReflectionClass($mockName); |
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| 463 | 21 | return $r->newInstanceArgs($constructorArgs); |
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| 464 | } |
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| 465 | |||
| 466 | try { |
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| 467 | 387 | $instantiator = new Instantiator; |
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| 468 | 387 | $instance = $instantiator->instantiate($mockName); |
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| 469 | 387 | } catch (\Exception $ex) { |
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| 470 | $internalMockName = $mockName . '_Internal'; |
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| 471 | |||
| 472 | if (!class_exists($internalMockName)) { |
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| 473 | eval("class $internalMockName extends $mockName {" . |
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| 474 | 'public function __construct() {}' . |
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| 475 | '}'); |
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| 476 | } |
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| 477 | |||
| 478 | $instance = new $internalMockName(); |
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| 479 | } |
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| 480 | |||
| 481 | 387 | return $instance; |
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| 482 | } |
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| 483 | |||
| 484 | /** |
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| 485 | * Takes a class name and declares it |
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| 486 | * |
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| 487 | * @param string $fqcn |
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| 488 | */ |
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| 489 | public function declareClass($fqcn) |
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| 490 | { |
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| 491 | if (false !== strpos($fqcn, '/')) { |
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| 492 | throw new \Mockery\Exception( |
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| 493 | 'Class name contains a forward slash instead of backslash needed ' |
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| 494 | . 'when employing namespaces' |
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| 495 | ); |
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| 496 | } |
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| 497 | if (false !== strpos($fqcn, "\\")) { |
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| 498 | $parts = array_filter(explode("\\", $fqcn), function ($part) { |
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| 499 | return $part !== ""; |
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| 500 | }); |
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| 501 | $cl = array_pop($parts); |
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| 502 | $ns = implode("\\", $parts); |
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| 503 | eval(" namespace $ns { class $cl {} }"); |
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| 504 | } else { |
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| 505 | eval(" class $fqcn {} "); |
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| 506 | } |
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| 507 | } |
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| 508 | |||
| 509 | 409 | protected function checkForNamedMockClashes($config) |
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| 529 | |||
| 530 | /** |
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| 531 | * see http://php.net/manual/en/language.oop5.basic.php |
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| 532 | * @param string $className |
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| 533 | * @return bool |
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| 534 | */ |
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| 535 | 23 | public function isValidClassName($className) |
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| 547 | } |
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| 548 |