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<?php |
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namespace Peridot\Core; |
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use Error; |
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use ErrorException; |
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use Exception; |
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use Throwable; |
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/** |
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* The main test fixture for Peridot. |
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* |
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* @package Peridot\Core |
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*/ |
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class Test extends AbstractTest |
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{ |
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/** |
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* @param string $description |
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* @param callable $definition |
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*/ |
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public function __construct($description, callable $definition = null) |
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{ |
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if ($definition === null) { |
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$this->pending = true; |
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$definition = function () { |
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//noop |
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}; |
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} |
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parent::__construct($description, $definition); |
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} |
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/** |
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* Execute the test along with any setup and tear down functions. |
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* |
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* @param TestResult $result |
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* @return void |
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*/ |
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public function run(TestResult $result) |
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{ |
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$result->startTest($this); |
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if ($this->getPending()) { |
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$result->pendTest($this); |
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return; |
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} |
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$this->executeTest($result); |
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$result->endTest($this); |
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} |
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/** |
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* Attempt to execute setup functions and run the test definition |
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* |
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* @param TestResult $result |
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*/ |
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protected function executeTest(TestResult $result) |
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{ |
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$action = ['passTest', $this]; |
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$handler = $this->handleErrors($result, $action); |
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try { |
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$this->runSetup(); |
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call_user_func_array($this->getDefinition(), $this->getDefinitionArguments()); |
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} catch (Throwable $e) { |
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$this->failIfPassing($action, $e); |
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} catch (Exception $e) { |
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$this->failIfPassing($action, $e); |
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} |
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$this->runTearDown($result, $action); |
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$this->restoreErrorHandler($handler); |
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} |
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/** |
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* Excecute the test's setup functions |
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*/ |
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protected function runSetup() |
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{ |
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$this->forEachNodeTopDown(function (TestInterface $node) { |
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$setups = $node->getSetupFunctions(); |
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foreach ($setups as $setup) { |
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$setup(); |
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} |
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}); |
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} |
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/** |
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* Run the tests tear down methods and have the result |
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* perform the method indicated by $action |
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* |
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* @param TestResult $result |
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* @param array $action |
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*/ |
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protected function runTearDown(TestResult $result, array $action) |
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{ |
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$this->forEachNodeBottomUp(function (TestInterface $test) use ($result, &$action) { |
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$tearDowns = $test->getTearDownFunctions(); |
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foreach ($tearDowns as $tearDown) { |
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try { |
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$tearDown(); |
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} catch (Throwable $e) { |
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$this->failIfPassing($action, $e); |
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} catch (Exception $e) { |
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$this->failIfPassing($action, $e); |
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} |
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} |
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}); |
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call_user_func_array([$result, $action[0]], array_slice($action, 1)); |
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} |
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/** |
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* Set an error handler to handle errors within the test |
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* |
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* @param TestResult $result |
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* @param array &$action |
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* |
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* @return callable|null |
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*/ |
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protected function handleErrors(TestResult $result, array &$action) |
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{ |
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$handler = null; |
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$handler = set_error_handler(function ($severity, $message, $path, $line) use ($result, &$action, &$handler) { |
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// if there is an existing error handler, call it and record the result |
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$isHandled = $handler && false !== $handler($severity, $message, $path, $line); |
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if (!$isHandled) { |
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$result->getEventEmitter()->emit('error', [$severity, $message, $path, $line]); |
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// honor the error reporting configuration - this also takes care of the error control operator (@) |
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$errorReporting = error_reporting(); |
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$shouldHandle = $severity === ($severity & $errorReporting); |
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if ($shouldHandle) { |
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$this->failIfPassing($action, new ErrorException($message, 0, $severity, $path, $line)); |
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} |
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} |
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}); |
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return $handler; |
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} |
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/** |
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* Restore the previous error handler |
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* |
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* @param callable|null $handler |
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*/ |
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protected function restoreErrorHandler($handler) |
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{ |
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if ($handler) { |
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set_error_handler($handler); |
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} else { |
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// unfortunately, we can't pass null until PHP 5.5 |
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set_error_handler(function () { return false; }); |
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} |
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} |
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/** |
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* Fail the test, but do not overwrite existing failures |
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* |
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* @param array &$action |
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* @param mixed $error |
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*/ |
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protected function failIfPassing(array &$action, $error) |
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{ |
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if ('passTest' === $action[0]) { |
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$action = ['failTest', $this, $error]; |
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} |
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} |
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} |
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peridot-php /
peridot
