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<?php |
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namespace SmartWeb\ModuleTesting\Assertions; |
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use Exception; |
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use PHPUnit\Framework\AssertionFailedError; |
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use PHPUnit\Framework\TestCase; |
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/** |
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* Trait AssertThrows |
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* |
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* @link https://github.com/Codeception/AssertThrows |
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* |
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* @package SmartWeb\Testing\Assertions |
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*/ |
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trait AssertThrows |
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{ |
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/** |
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* Asserts that callback throws an exception |
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* |
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* @param $throws |
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* @param callable $fn |
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* |
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* @throws \Exception |
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*/ |
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public function assertThrows($throws, callable $fn) |
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{ |
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$this->assertThrowsWithMessage($throws, false, $fn); |
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} |
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/** |
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* Asserts that callback throws an exception with a message |
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* |
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* @param $throws |
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* @param $message |
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* @param callable $fn |
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* |
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* @throws Exception |
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*/ |
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public function assertThrowsWithMessage($throws, $message, callable $fn) |
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{ |
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/** @var $this TestCase * */ |
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$result = $this->getTestResultObject(); |
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$this->parseThrows($throws, $message); |
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try { |
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call_user_func($fn); |
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} catch (AssertionFailedError $e) { |
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if ($throws !== get_class($e)) { |
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throw $e; |
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} |
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if ($this->exceptionMessageDoesNotMatchExpected($e, $message)) { |
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throw new AssertionFailedError("exception message '$message' was expected, but '" . $e->getMessage() . "' was received"); |
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} |
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} catch (\Exception $e) { |
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if ($throws) { |
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if ($throws !== get_class($e)) { |
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throw new AssertionFailedError("exception '$throws' was expected, but " . get_class($e) . ' was thrown'); |
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} |
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if ($this->exceptionMessageDoesNotMatchExpected($e, $message)) { |
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throw new AssertionFailedError("exception message '$message' was expected, but '" . $e->getMessage() . "' was received"); |
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} |
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} else { |
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throw $e; |
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} |
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} |
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if ($throws) { |
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if (isset($e)) { |
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$this->assertTrue(true, 'exception handled'); |
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} else { |
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throw new AssertionFailedError("exception '$throws' was not thrown as expected"); |
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} |
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} |
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} |
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/** |
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* @param Exception $exception |
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* @param string $expectedMsg |
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* |
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* @return bool |
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*/ |
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private function exceptionMessageDoesNotMatchExpected(Exception $exception, string $expectedMsg) : bool |
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{ |
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return $expectedMsg !== false && $expectedMsg !== strtolower($exception->getMessage()); |
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} |
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/** |
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* @param $throws |
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* @param $message |
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*/ |
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private function parseThrows(&$throws, &$message) |
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{ |
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if (is_array($throws)) { |
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$message = ($throws[1]) |
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? strtolower($throws[1]) |
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: false; |
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$throws = $throws[0]; |
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} |
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} |
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} |
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVar
assignment in line 1 and the$higher
assignment in line 2 are dead. The first because$myVar
is never used and the second because$higher
is always overwritten for every possible time line.