自定义PHPUnit约束停止工作

我把它放在我的基础TestCase中,它是assertLastError函数：

/**
 * abstract,base test-case class.
 */
abstract class TestCase extends PHPUnit_Framework_TestCase
{
    /**
     * assert lint of a php file
     */
    protected function assertLint($filename,$message = '') {
        self::assertThat($filename,new ConstraintLint,$message);
    }
    /**
     * assert the last error
     */
    protected function assertLastError($error,$file,$message = '') {
        self::assertThat($file,new ConstraintLastError($error),$message);
    }
    /**
     * assert XML DTD validity
     */
    protected function assertXmlStringValidatesDtdUri($xml,$dtd,$message = '') {
        self::assertThat($dtd,new ConstraintXmlStringValidatesDtdUri($xml),$message);
    }

    ...

到目前为止我调试了约束,我看到evaluate方法被调用并返回FALSE,但是testrunner没有报告我失败.

约束：

/**
 * ConstraintLastError
 *
 * For asserting the last error message in a file.
 *
 * To test trigger_error().
 *
 * Example:
 *
 *   $this->assertLastError('Error Message','basenameOfFile.php');
 *
 */
class ConstraintLastError extends PHPUnit_Framework_Constraint {
    private $file;
    private $error;
    public function __construct($error) {
        $this->error = $error;
    }
    /**
     * Evaluates the constraint for parameter $file. Returns TRUE if the
     * constraint is met,FALSE otherwise.
     *
     * @param string $file Value or object to evaluate.
     * @return bool
     */
    public function evaluate($file)
    {
        $this->file = $file;
        $error = $this->error;
        $lastError = error_get_last();
        if (NULL === $lastError)
            return false;

        $last_message = $lastError['message'];
        $last_file = $lastError['file'];


        $result = ($error == $last_message && basename($file) == basename($last_file));

        var_dump($result,$error,$last_message,$last_file);

        return $result;
    }

    /**
     * @param mixed   $other
     * @param string  $description
     * @param boolean $not
     */
    protected function customFailureDescription($other,$description,$not)
    {
        return sprintf('Failed asserting that the last error %s',basename($other),$not ? '' : 'no ',implode("n  - ",$this->lines));
    }


    /**
     * Returns a string representation of the constraint.
     *
     * @return string
     */
    public function toString()
    {
        return sprintf('was %s in file %s.',$this->error,$this->file);
    }
}

我不知道为什么这停止工作,测试用例刚刚完成,我可以在输出中看到错误消息. stacktrace(xdebug打开),var_dump告诉我结果为FALSE.这是测试：

public function testGetType()
{
    ...

    $fragment->setParsed(array());
    PHPUnit_Framework_Error_Warning::$enabled = FALSE;
    $actual = $fragment->getType();
    PHPUnit_Framework_Error_Warning::$enabled = TRUE;
    $this->assertLastError('Invalid State Error FAIL','Fragment.php');
}

这是我刚刚写的一个新测试,我在其他地方也有相同的断言,它们也不再工作了.

PHPUnit 3.6.7