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Filename : Specify.php
back
<?php
namespace Codeception;

use Codeception\Specify\Config;
use Codeception\Specify\ConfigBuilder;
use Codeception\Specify\ObjectProperty;

trait Specify
{

    private $beforeSpecify = array();
    private $afterSpecify = array();

    /**
     * @var Specify\Config
     */
    private $specifyConfig;

    /**
     * @var \DeepCopy\DeepCopy()
     */
    private $copier;

    private function specifyInit()
    {
        if ($this->copier) return;
        $this->copier = new \DeepCopy\DeepCopy();
        $this->copier->skipUncloneable();
        if (!$this->specifyConfig) $this->specifyConfig = Config::create();
    }

    function specify($specification, \Closure $callable = null, $params = [])
    {
        if (!$callable) return;
        $this->specifyInit();

        $test = $callable->bindTo($this);
        $oldName = $this->getName();
        $newName = $oldName . ' | ' . $specification;

        $this->setName($newName);

        $properties = $this->getSpecifyObjectProperties();

        // prepare for execution
        $throws = $this->getSpecifyExpectedException($params);
        $examples = $this->getSpecifyExamples($params);
        $showExamplesIndex = $examples !== [[]];

        foreach ($examples as $idx => $example) {
            if ($showExamplesIndex) {
                $this->setName($newName . ' | examples index ' . $idx);
            }

            // copy current object properties
            $this->specifyCloneProperties($properties);

            if (!empty($this->beforeSpecify) && is_array($this->beforeSpecify)) {
                foreach ($this->beforeSpecify as $closure) {
                    if ($closure instanceof \Closure) $closure->__invoke();
                }
            }

            $this->specifyExecute($test, $throws, $example);

            // restore object properties
            $this->specifyRestoreProperties($properties);

            if (!empty($this->afterSpecify) && is_array($this->afterSpecify)) {
                foreach ($this->afterSpecify as $closure) {
                    if ($closure instanceof \Closure) $closure->__invoke();
                }
            }
        }

        // restore test name
        $this->setName($oldName);
    }

    /**
     * @param $params
     * @return array
     * @throws \RuntimeException
     */
    private function getSpecifyExamples($params)
    {
        if (isset($params['examples'])) {
            if (!is_array($params['examples'])) throw new \RuntimeException("Examples should be an array");
            return $params['examples'];
        }
        return [[]];
    }

    private function getSpecifyExpectedException($params)
    {
        if (isset($params['throws'])) {
            $throws = (is_array($params['throws'])) ? $params['throws'][0] : $params['throws'];

            if (is_object($throws)) {
                $throws = get_class($throws);
            }
            if ($throws === 'fail') {
                $throws = 'PHPUnit_Framework_AssertionFailedError';
            }

            $message = (is_array($params['throws']) && isset($params['throws'][1])) ? $params['throws'][1] : false;

            return [$throws, $message];
        }

        return false;
    }

    private function specifyExecute($test, $throws = false, $examples = array())
    {
        $message = false;

        if (is_array($throws)) {
            $message = ($throws[1]) ? strtolower($throws[1]) : false;
            $throws = $throws[0];
        }

        $result = $this->getTestResultObject();

        try {
            call_user_func_array($test, $examples);
            $this->specifyCheckMockObjects();
        } catch (\PHPUnit_Framework_AssertionFailedError $e) {
            if ($throws !== get_class($e)){
                $result->addFailure(clone($this), $e, $result->time());
            }

            if ($message !==false && $message !== strtolower($e->getMessage())) {
                $f = new \PHPUnit_Framework_AssertionFailedError("exception message '$message' was expected, but '" . $e->getMessage() . "' was received");
                $result->addFailure(clone($this), $f, $result->time());
            }
        } catch (\Exception $e) {
            if ($throws) {
                if ($throws !== get_class($e)) {
                    $f = new \PHPUnit_Framework_AssertionFailedError("exception '$throws' was expected, but " . get_class($e) . ' was thrown');
                    $result->addFailure(clone($this), $f, $result->time());
                }

                if ($message !==false && $message !== strtolower($e->getMessage())) {
                    $f = new \PHPUnit_Framework_AssertionFailedError("exception message '$message' was expected, but '" . $e->getMessage() . "' was received");
                    $result->addFailure(clone($this), $f, $result->time());
                }
            } else {
                throw $e;
            }
        }

        if ($throws) {
            if (isset($e)) {
                $this->assertTrue(true, 'exception handled');
            } else {
                $f = new \PHPUnit_Framework_AssertionFailedError("exception '$throws' was not thrown as expected");
                $result->addFailure(clone($this), $f, $result->time());
            }
        }
    }

    public function specifyConfig()
    {
        if (!$this->specifyConfig) $this->specifyConfig = Config::create();
        return new ConfigBuilder($this->specifyConfig);
    }

    function beforeSpecify(\Closure $callable = null)
    {
        $this->beforeSpecify[] = $callable->bindTo($this);
    }

    function afterSpecify(\Closure $callable = null)
    {
        $this->afterSpecify[] = $callable->bindTo($this);
    }

    function cleanSpecify()
    {
        $this->beforeSpecify = $this->afterSpecify = array();
    }

    /**
     * @param ObjectProperty[] $properties
     */
    private function specifyCloneProperties($properties)
    {
        foreach ($properties as $property) {
            $propertyName = $property->getName();
            $propertyValue = $property->getValue();

            if ($this->specifyConfig->classIgnored($propertyValue)) {
                continue;
            }

            if ($this->specifyConfig->propertyIsShallowCloned($propertyName)) {
                if (is_object($propertyValue)) {
                    $property->setValue(clone $propertyValue);
                } else {
                    $property->setValue($propertyValue);
                }
            }

            if ($this->specifyConfig->propertyIsDeeplyCloned($propertyName)) {
                $property->setValue($this->copier->copy($propertyValue));
            }
        }
    }

    /**
     * @param ObjectProperty[] $properties
     */
    private function specifyRestoreProperties($properties)
    {
        foreach ($properties as $property) {
            $property->restoreValue();
        }
    }

    /**
     * @return ObjectProperty[]
     */
    private function getSpecifyObjectProperties()
    {
        $objectReflection = new \ReflectionObject($this);
        $propertiesToClone = $objectReflection->getProperties();

        if (($classProperties = $this->specifyGetClassPrivateProperties()) !== []) {
            $propertiesToClone = array_merge($propertiesToClone, $classProperties);
        }

        $properties = [];

        foreach ($propertiesToClone as $property) {
            if ($this->specifyConfig->propertyIgnored($property->getName())) {
                continue;
            }

            $properties[] = new ObjectProperty($this, $property);
        }

        // isolate mockObjects property from PHPUnit_Framework_TestCase
        if (($phpUnitReflection = $this->specifyGetPhpUnitReflection()) !== null) {
            $properties[] = $mockObjects = new ObjectProperty(
                $this, $phpUnitReflection->getProperty('mockObjects')
            );

            // remove all mock objects inherited from parent scope(s)
            $mockObjects->setValue([]);
        }

        return $properties;
    }

    private function specifyCheckMockObjects()
    {
        if (($phpUnitReflection = $this->specifyGetPhpUnitReflection()) !== null) {
            $verifyMockObjects = $phpUnitReflection->getMethod('verifyMockObjects');
            $verifyMockObjects->setAccessible(true);
            $verifyMockObjects->invoke($this);
        }
    }

    private function specifyGetClassPrivateProperties()
    {
        static $properties = [];

        if (!isset($properties[__CLASS__])) {
            $reflection = new \ReflectionClass(__CLASS__);

            $properties[__CLASS__] = (get_class($this) !== __CLASS__)
                ? $reflection->getProperties(\ReflectionProperty::IS_PRIVATE) : [];
        }

        return $properties[__CLASS__];
    }

    /**
     * @return \ReflectionClass|null
     */
    private function specifyGetPhpUnitReflection()
    {
        if ($this instanceof \PHPUnit_Framework_TestCase) {
            return new \ReflectionClass('\PHPUnit_Framework_TestCase');
        }
    }
}