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<?php |
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declare(strict_types=1); |
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namespace MyTester; |
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trait TAssertions |
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{ |
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/** @internal */ |
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protected int $taskCount = 0; |
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/** |
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* Prints result of a test |
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* |
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* @internal |
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*/ |
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protected function testResult(string $text, bool $success = true): void |
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{ |
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$this->incCounter(); |
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if ($success) { |
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return; |
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} |
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echo "Test $this->taskCount failed. $text\n"; |
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} |
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/** |
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* Increases task counter |
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* |
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* @internal |
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*/ |
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protected function incCounter(): void |
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{ |
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$this->taskCount++; |
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} |
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/** |
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* Resets task counter |
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* |
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* @internal |
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*/ |
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protected function resetCounter(): void |
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{ |
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$this->taskCount = 0; |
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} |
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/** |
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* @internal |
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*/ |
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protected function getCounter(): int |
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{ |
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return $this->taskCount; |
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} |
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protected function showStringOrArray(string|array $variable): string |
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{ |
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return (is_string($variable) ? $variable : "(array)"); |
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} |
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/** |
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* Tries an assertion |
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*/ |
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protected function assert(mixed $code, string $failureText = ""): void |
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{ |
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$success = ($code == true); |
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$message = ""; |
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if ($code != true) { |
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$message = ($failureText === "") ? "The assertion is not true." : $failureText; |
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} |
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$this->testResult($message, $success); |
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} |
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/** |
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* Are both values same? |
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*/ |
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protected function assertSame(mixed $expected, mixed $actual): void |
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{ |
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$success = ($expected == $actual); |
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$message = ($success) ? "" : "The value is not $expected but $actual."; |
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$this->testResult($message, $success); |
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} |
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/** |
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* Are not both values same? |
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*/ |
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protected function assertNotSame(mixed $expected, mixed $actual): void |
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{ |
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$success = ($expected !== $actual); |
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$message = ($success) ? "" : "The value is $expected."; |
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$this->testResult($message, $success); |
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} |
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/** |
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* Is $actual equal to true? |
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*/ |
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protected function assertTrue(bool $actual): void |
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{ |
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$success = ($actual); |
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$message = ($success) ? "" : "The value is not true."; |
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$this->testResult($message, $success); |
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} |
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/** |
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* Is the expression true? |
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*/ |
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protected function assertTruthy(mixed $actual): void |
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{ |
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$success = ($actual == true); |
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$message = ($success) ? "" : "The expression is not true."; |
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$this->testResult($message, $success); |
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} |
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/** |
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* Is $actual equal to false? |
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*/ |
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protected function assertFalse(bool $actual): void |
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{ |
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$success = (!$actual); |
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$message = ($success) ? "" : "The value is not false."; |
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$this->testResult($message, $success); |
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} |
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/** |
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* Is the expression false? |
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*/ |
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protected function assertFalsey(mixed $actual): void |
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{ |
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$success = ($actual == false); |
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$message = ($success) ? "" : "The expression is not false."; |
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$this->testResult($message, $success); |
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} |
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/** |
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* Is the value null? |
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*/ |
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protected function assertNull(mixed $actual): void |
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{ |
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$success = ($actual == null); |
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$message = ($success) ? "" : "The value is not null."; |
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$this->testResult($message, $success); |
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} |
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/** |
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* Is not the value null? |
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*/ |
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protected function assertNotNull(mixed $actual): void |
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{ |
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$success = ($actual !== null); |
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$message = ($success) ? "" : "The value is null."; |
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$this->testResult($message, $success); |
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} |
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/** |
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* Does $actual contain $needle? |
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*/ |
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protected function assertContains(string|array $needle, string|array $actual): void |
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{ |
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if (is_string($actual) && is_string($needle)) { |
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$success = ($needle !== "" && str_contains($actual, $needle)); |
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if ($success) { |
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$this->testResult(""); |
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} else { |
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$this->testResult("$needle is not in the variable.", false); |
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} |
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} elseif (is_array($actual)) { |
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$success = (in_array($needle, $actual)); |
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$message = ($success) ? "" : $this->showStringOrArray($needle) . " is not in the variable."; |
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$this->testResult($message, $success); |
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} else { |
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$this->testResult($this->showStringOrArray($needle) . " is not in the variable.", false); |
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} |
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} |
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/** |
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* Does $actual not contain $needle? |
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*/ |
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protected function assertNotContains(string|array $needle, string|array $actual): void |
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{ |
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if (is_string($actual) && is_string($needle)) { |
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$success = ($needle === "" || !str_contains($actual, $needle)); |
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$message = ($success) ? "" : "$needle is in the variable."; |
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$this->testResult($message, $success); |
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} elseif (is_array($actual)) { |
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$success = (!in_array($needle, $actual)); |
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$message = ($success) ? "" : $this->showStringOrArray($needle) . " is in the variable."; |
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$this->testResult($message, $success); |
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} else { |
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$this->testResult($this->showStringOrArray($needle) . " is not in the variable.", false); |
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} |
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} |
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/** |
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* Does $value contain $count items? |
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*/ |
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protected function assertCount(int $count, string|array|\Countable $value): void |
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{ |
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if (!is_array($value) && !$value instanceof \Countable) { |
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$this->testResult("The variable is not array or countable object.", false); |
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return; |
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} |
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$actual = count($value); |
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$success = ($actual === $count); |
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$message = ($success) ? "" : "Count of the variable is $actual."; |
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$this->testResult($message, $success); |
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} |
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/** |
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* Does $value not contain $count items? |
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*/ |
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protected function assertNotCount(int $count, string|array|\Countable $value): void |
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{ |
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if (!is_array($value) && !$value instanceof \Countable) { |
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$this->testResult("The variable is not array or countable object.", false); |
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return; |
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} |
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$actual = count($value); |
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$success = ($actual !== $count); |
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$message = ($success) ? "" : "Count of the variable is $actual."; |
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$this->testResult($message, $success); |
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} |
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/** |
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* Is $value of type $type? |
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*/ |
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protected function assertType(string|object $type, mixed $value): void |
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{ |
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if ( |
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in_array($type, [ |
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"array", "bool", "float", "int", "string", "null", "object", "resource", |
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"scalar", "iterable", "callable", |
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], true) |
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) { |
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$success = (call_user_func("is_$type", $value)); |
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$actual = gettype($value); |
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$message = ($success) ? "" : "The variable is $actual."; |
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$this->testResult($message, $success); |
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return; |
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} |
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$success = ($value instanceof $type); |
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$actual = get_debug_type($value); |
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$message = ($success) ? "" : "The variable is instance of $actual."; |
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$this->testResult($message, $success); |
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} |
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/** |
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* Does the code throw the expected exception? |
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* |
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* @param class-string $className |
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*/ |
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protected function assertThrowsException(callable $callback, string $className, string $message = null, int $code = null): void |
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{ |
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$success = false; |
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$errorMessage = ""; |
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$e = null; |
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try { |
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$callback(); |
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} catch (\Throwable $e) { |
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if ($e instanceof $className) { |
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if (($message === null || $e->getMessage() === $message && ($code === null || $e->getCode() === $code))) { |
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$success = true; |
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} |
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} |
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} |
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if (!$success) { |
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if ($e === null) { |
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$errorMessage = "The code does not throw any exception."; |
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} elseif (!$e instanceof $className) { |
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$errorMessage = "The code does not throw $className but " . get_class($e) . "."; |
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} elseif ($message !== null && $message !== $e->getMessage()) { |
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$errorMessage = "The code not throw an exception with message '$message' but '{$e->getMessage()}'."; |
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} elseif ($code !== null && $code !== $e->getCode()) { |
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$errorMessage = "The code not throw an exception with code $code but {$e->getCode()}."; |
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} |
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} |
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$this->testResult($errorMessage, $success); |
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} |
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} |
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