<?php
/*
 * This file is part of PHPUnit.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

/**
 * @since      Class available since Release 3.0.0
 */
class Framework_ConstraintTest extends PHPUnit_Framework_TestCase
{
    /**
     * @covers PHPUnit_Framework_Constraint_ArrayHasKey
     * @covers PHPUnit_Framework_Assert::arrayHasKey
     * @covers PHPUnit_Framework_Constraint::count
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintArrayHasKey()
    {
        $constraint = PHPUnit_Framework_Assert::arrayHasKey(0);

        $this->assertFalse($constraint->evaluate(array(), '', true));
        $this->assertEquals('has the key 0', $constraint->toString());
        $this->assertEquals(1, count($constraint));

        try {
            $constraint->evaluate(array());
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(<<<EOF
Failed asserting that an array has the key 0.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_ArrayHasKey
     * @covers PHPUnit_Framework_Assert::arrayHasKey
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintArrayHasKey2()
    {
        $constraint = PHPUnit_Framework_Assert::arrayHasKey(0);

        try {
            $constraint->evaluate(array(), 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
custom message\nFailed asserting that an array has the key 0.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_ArrayHasKey
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::arrayHasKey
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintArrayNotHasKey()
    {
        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::arrayHasKey(0)
        );

        $this->assertFalse($constraint->evaluate(array(0 => 1), '', true));
        $this->assertEquals('does not have the key 0', $constraint->toString());
        $this->assertEquals(1, count($constraint));

        try {
            $constraint->evaluate(array(0 => 1));
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
Failed asserting that an array does not have the key 0.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_ArrayHasKey
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::arrayHasKey
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintArrayNotHasKey2()
    {
        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::arrayHasKey(0)
        );

        try {
            $constraint->evaluate(array(0), 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
custom message
Failed asserting that an array does not have the key 0.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_FileExists
     * @covers PHPUnit_Framework_Assert::fileExists
     * @covers PHPUnit_Framework_Constraint::count
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintFileExists()
    {
        $constraint = PHPUnit_Framework_Assert::fileExists();

        $this->assertFalse($constraint->evaluate('foo', '', true));
        $this->assertEquals('file exists', $constraint->toString());
        $this->assertEquals(1, count($constraint));

        try {
            $constraint->evaluate('foo');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
Failed asserting that file "foo" exists.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_FileExists
     * @covers PHPUnit_Framework_Assert::fileExists
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintFileExists2()
    {
        $constraint = PHPUnit_Framework_Assert::fileExists();

        try {
            $constraint->evaluate('foo', 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(<<<EOF
custom message
Failed asserting that file "foo" exists.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_FileExists
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_Assert::fileExists
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintFileNotExists()
    {
        $file = dirname(__DIR__) . DIRECTORY_SEPARATOR . '_files' . DIRECTORY_SEPARATOR . 'ClassWithNonPublicAttributes.php';

        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::fileExists()
        );

        $this->assertFalse($constraint->evaluate($file, '', true));
        $this->assertEquals('file does not exist', $constraint->toString());
        $this->assertEquals(1, count($constraint));

        try {
            $constraint->evaluate($file);
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
Failed asserting that file "$file" does not exist.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_FileExists
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_Assert::fileExists
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintFileNotExists2()
    {
        $file = dirname(__DIR__) . DIRECTORY_SEPARATOR . '_files' . DIRECTORY_SEPARATOR . 'ClassWithNonPublicAttributes.php';

        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::fileExists()
        );

        try {
            $constraint->evaluate($file, 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(<<<EOF
custom message
Failed asserting that file "$file" does not exist.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_GreaterThan
     * @covers PHPUnit_Framework_Assert::greaterThan
     * @covers PHPUnit_Framework_Constraint::count
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintGreaterThan()
    {
        $constraint = PHPUnit_Framework_Assert::greaterThan(1);

        $this->assertFalse($constraint->evaluate(0, '', true));
        $this->assertTrue($constraint->evaluate(2, '', true));
        $this->assertEquals('is greater than 1', $constraint->toString());
        $this->assertEquals(1, count($constraint));

        try {
            $constraint->evaluate(0);
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
Failed asserting that 0 is greater than 1.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_GreaterThan
     * @covers PHPUnit_Framework_Assert::greaterThan
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintGreaterThan2()
    {
        $constraint = PHPUnit_Framework_Assert::greaterThan(1);

        try {
            $constraint->evaluate(0, 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
custom message
Failed asserting that 0 is greater than 1.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_GreaterThan
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::greaterThan
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintNotGreaterThan()
    {
        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::greaterThan(1)
        );

        $this->assertTrue($constraint->evaluate(1, '', true));
        $this->assertEquals('is not greater than 1', $constraint->toString());
        $this->assertEquals(1, count($constraint));

        try {
            $constraint->evaluate(2);
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
Failed asserting that 2 is not greater than 1.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_GreaterThan
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::greaterThan
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintNotGreaterThan2()
    {
        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::greaterThan(1)
        );

        try {
            $constraint->evaluate(2, 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
custom message
Failed asserting that 2 is not greater than 1.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsEqual
     * @covers PHPUnit_Framework_Constraint_GreaterThan
     * @covers PHPUnit_Framework_Constraint_Or
     * @covers PHPUnit_Framework_Assert::greaterThanOrEqual
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintGreaterThanOrEqual()
    {
        $constraint = PHPUnit_Framework_Assert::greaterThanOrEqual(1);

        $this->assertTrue($constraint->evaluate(1, '', true));
        $this->assertFalse($constraint->evaluate(0, '', true));
        $this->assertEquals('is equal to 1 or is greater than 1', $constraint->toString());
        $this->assertEquals(2, count($constraint));

        try {
            $constraint->evaluate(0);
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
Failed asserting that 0 is equal to 1 or is greater than 1.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsEqual
     * @covers PHPUnit_Framework_Constraint_GreaterThan
     * @covers PHPUnit_Framework_Constraint_Or
     * @covers PHPUnit_Framework_Assert::greaterThanOrEqual
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintGreaterThanOrEqual2()
    {
        $constraint = PHPUnit_Framework_Assert::greaterThanOrEqual(1);

        try {
            $constraint->evaluate(0, 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
custom message
Failed asserting that 0 is equal to 1 or is greater than 1.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsEqual
     * @covers PHPUnit_Framework_Constraint_GreaterThan
     * @covers PHPUnit_Framework_Constraint_Or
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::greaterThanOrEqual
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintNotGreaterThanOrEqual()
    {
        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::greaterThanOrEqual(1)
        );

        $this->assertFalse($constraint->evaluate(1, '', true));
        $this->assertEquals('not( is equal to 1 or is greater than 1 )', $constraint->toString());
        $this->assertEquals(2, count($constraint));

        try {
            $constraint->evaluate(1);
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
Failed asserting that not( 1 is equal to 1 or is greater than 1 ).

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsEqual
     * @covers PHPUnit_Framework_Constraint_GreaterThan
     * @covers PHPUnit_Framework_Constraint_Or
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::greaterThanOrEqual
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintNotGreaterThanOrEqual2()
    {
        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::greaterThanOrEqual(1)
        );

        try {
            $constraint->evaluate(1, 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
custom message
Failed asserting that not( 1 is equal to 1 or is greater than 1 ).

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsAnything
     * @covers PHPUnit_Framework_Assert::anything
     * @covers PHPUnit_Framework_Constraint::count
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsAnything()
    {
        $constraint = PHPUnit_Framework_Assert::anything();

        $this->assertTrue($constraint->evaluate(null, '', true));
        $this->assertNull($constraint->evaluate(null));
        $this->assertEquals('is anything', $constraint->toString());
        $this->assertEquals(0, count($constraint));
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsAnything
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::anything
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintNotIsAnything()
    {
        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::anything()
        );

        $this->assertFalse($constraint->evaluate(null, '', true));
        $this->assertEquals('is not anything', $constraint->toString());
        $this->assertEquals(0, count($constraint));

        try {
            $constraint->evaluate(null);
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
Failed asserting that null is not anything.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsEqual
     * @covers PHPUnit_Framework_Assert::equalTo
     * @covers PHPUnit_Framework_Constraint::count
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsEqual()
    {
        $constraint = PHPUnit_Framework_Assert::equalTo(1);

        $this->assertTrue($constraint->evaluate(1, '', true));
        $this->assertFalse($constraint->evaluate(0, '', true));
        $this->assertEquals('is equal to 1', $constraint->toString());
        $this->assertEquals(1, count($constraint));

        try {
            $constraint->evaluate(0);
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
Failed asserting that 0 matches expected 1.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    public function isEqualProvider()
    {
        $a      = new stdClass;
        $a->foo = 'bar';
        $b      = new stdClass;
        $ahash  = spl_object_hash($a);
        $bhash  = spl_object_hash($b);

        $c               = new stdClass;
        $c->foo          = 'bar';
        $c->int          = 1;
        $c->array        = array(0, array(1), array(2), 3);
        $c->related      = new stdClass;
        $c->related->foo = "a\nb\nc\nd\ne\nf\ng\nh\ni\nj\nk";
        $c->self         = $c;
        $c->c            = $c;
        $d               = new stdClass;
        $d->foo          = 'bar';
        $d->int          = 2;
        $d->array        = array(0, array(4), array(2), 3);
        $d->related      = new stdClass;
        $d->related->foo = "a\np\nc\nd\ne\nf\ng\nh\ni\nw\nk";
        $d->self         = $d;
        $d->c            = $c;

        $storage1 = new SplObjectStorage;
        $storage1->attach($a);
        $storage1->attach($b);
        $storage2 = new SplObjectStorage;
        $storage2->attach($b);
        $storage1hash = spl_object_hash($storage1);
        $storage2hash = spl_object_hash($storage2);

        $dom1                     = new DOMDocument;
        $dom1->preserveWhiteSpace = false;
        $dom1->loadXML('<root></root>');
        $dom2                     = new DOMDocument;
        $dom2->preserveWhiteSpace = false;
        $dom2->loadXML('<root><foo/></root>');

        $data = array(
            array(1, 0, <<<EOF
Failed asserting that 0 matches expected 1.

EOF
            ),
            array(1.1, 0, <<<EOF
Failed asserting that 0 matches expected 1.1.

EOF
            ),
            array('a', 'b', <<<EOF
Failed asserting that two strings are equal.
--- Expected
+++ Actual
@@ @@
-'a'
+'b'

EOF
            ),
            array("a\nb\nc\nd\ne\nf\ng\nh\ni\nj\nk", "a\np\nc\nd\ne\nf\ng\nh\ni\nw\nk", <<<EOF
Failed asserting that two strings are equal.
--- Expected
+++ Actual
@@ @@
 'a
-b
+p

@@ @@
 i
-j
+w
 k'

EOF
            ),
            array(1, array(0), <<<EOF
Array (...) does not match expected type "integer".

EOF
            ),
            array(array(0), 1, <<<EOF
1 does not match expected type "array".

EOF
            ),
            array(array(0), array(1), <<<EOF
Failed asserting that two arrays are equal.
--- Expected
+++ Actual
@@ @@
 Array (
-    0 => 0
+    0 => 1
 )

EOF
            ),
            array(array(true), array('true'), <<<EOF
Failed asserting that two arrays are equal.
--- Expected
+++ Actual
@@ @@
 Array (
-    0 => true
+    0 => 'true'
 )

EOF
            ),
            array(array(0, array(1), array(2), 3), array(0, array(4), array(2), 3), <<<EOF
Failed asserting that two arrays are equal.
--- Expected
+++ Actual
@@ @@
 Array (
     0 => 0
     1 => Array (
-        0 => 1
+        0 => 4
     )
     2 => Array (...)
     3 => 3
 )

EOF
            ),
            array($a, array(0), <<<EOF
Array (...) does not match expected type "object".

EOF
            ),
            array(array(0), $a, <<<EOF
stdClass Object (...) does not match expected type "array".

EOF
            ),
            array($a, $b, <<<EOF
Failed asserting that two objects are equal.
--- Expected
+++ Actual
@@ @@
 stdClass Object (
-    'foo' => 'bar'
 )

EOF
            ),
            array($c, $d, <<<EOF
Failed asserting that two objects are equal.
--- Expected
+++ Actual
@@ @@
 stdClass Object (
     'foo' => 'bar'
-    'int' => 1
+    'int' => 2
     'array' => Array (
         0 => 0
         1 => Array (
-            0 => 1
+            0 => 4

@@ @@
         'foo' => 'a
-        b
+        p

@@ @@
         i
-        j
+        w
         k'
     )
     'self' => stdClass Object (...)
     'c' => stdClass Object (...)
 )

EOF
            ),
            array($dom1, $dom2, <<<EOF
Failed asserting that two DOM documents are equal.
--- Expected
+++ Actual
@@ @@
 <?xml version="1.0"?>
-<root/>
+<root>
+  <foo/>
+</root>

EOF
            ),
            array(
              new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/New_York')),
              new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/Chicago')),
              <<<EOF
Failed asserting that two DateTime objects are equal.
--- Expected
+++ Actual
@@ @@
-2013-03-29T04:13:35-0400
+2013-03-29T04:13:35-0500

EOF
            ),
        );

        if (PHP_MAJOR_VERSION < 7) {
            $data[] = array($storage1, $storage2, <<<EOF
Failed asserting that two objects are equal.
--- Expected
+++ Actual
@@ @@
-SplObjectStorage Object &$storage1hash (
-    '$ahash' => Array &0 (
-        'obj' => stdClass Object &$ahash (
-            'foo' => 'bar'
-        )
+SplObjectStorage Object &$storage2hash (
+    '$bhash' => Array &0 (
+        'obj' => stdClass Object &$bhash ()
         'inf' => null
     )
-    '$bhash' => Array &0
 )

EOF
            );
        } else {
            $data[] = array($storage1, $storage2, <<<EOF
Failed asserting that two objects are equal.
--- Expected
+++ Actual
@@ @@
-SplObjectStorage Object &$storage1hash (
-    '$ahash' => Array &0 (
-        'obj' => stdClass Object &$ahash (
-            'foo' => 'bar'
-        )
+SplObjectStorage Object &$storage2hash (
+    '$bhash' => Array &0 (
+        'obj' => stdClass Object &$bhash ()
         'inf' => null
     )
-    '$bhash' => Array &0
 )

EOF
            );
        }

        return $data;
    }

    /**
     * @dataProvider isEqualProvider
     * @covers PHPUnit_Framework_Constraint_IsEqual
     * @covers PHPUnit_Framework_Assert::equalTo
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsEqual2($expected, $actual, $message)
    {
        $constraint = PHPUnit_Framework_Assert::equalTo($expected);

        try {
            $constraint->evaluate($actual, 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              "custom message\n$message",
              $this->trimnl(PHPUnit_Framework_TestFailure::exceptionToString($e))
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsEqual
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::equalTo
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsNotEqual()
    {
        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::equalTo(1)
        );

        $this->assertTrue($constraint->evaluate(0, '', true));
        $this->assertFalse($constraint->evaluate(1, '', true));
        $this->assertEquals('is not equal to 1', $constraint->toString());
        $this->assertEquals(1, count($constraint));

        try {
            $constraint->evaluate(1);
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
Failed asserting that 1 is not equal to 1.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsEqual
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::equalTo
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsNotEqual2()
    {
        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::equalTo(1)
        );

        try {
            $constraint->evaluate(1, 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
custom message
Failed asserting that 1 is not equal to 1.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsIdentical
     * @covers PHPUnit_Framework_Assert::identicalTo
     * @covers PHPUnit_Framework_Constraint::count
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsIdentical()
    {
        $a = new stdClass;
        $b = new stdClass;

        $constraint = PHPUnit_Framework_Assert::identicalTo($a);

        $this->assertFalse($constraint->evaluate($b, '', true));
        $this->assertTrue($constraint->evaluate($a, '', true));
        $this->assertEquals('is identical to an object of class "stdClass"', $constraint->toString());
        $this->assertEquals(1, count($constraint));

        try {
            $constraint->evaluate($b);
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(<<<EOF
Failed asserting that two variables reference the same object.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsIdentical
     * @covers PHPUnit_Framework_Assert::identicalTo
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsIdentical2()
    {
        $a = new stdClass;
        $b = new stdClass;

        $constraint = PHPUnit_Framework_Assert::identicalTo($a);

        try {
            $constraint->evaluate($b, 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(<<<EOF
custom message
Failed asserting that two variables reference the same object.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsIdentical
     * @covers PHPUnit_Framework_Assert::identicalTo
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsIdentical3()
    {
        $constraint = PHPUnit_Framework_Assert::identicalTo('a');

        try {
            $constraint->evaluate('b', 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(<<<EOF
custom message
Failed asserting that two strings are identical.
--- Expected
+++ Actual
@@ @@
-a
+b

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsIdentical
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::identicalTo
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsNotIdentical()
    {
        $a = new stdClass;
        $b = new stdClass;

        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::identicalTo($a)
        );

        $this->assertTrue($constraint->evaluate($b, '', true));
        $this->assertFalse($constraint->evaluate($a, '', true));
        $this->assertEquals('is not identical to an object of class "stdClass"', $constraint->toString());
        $this->assertEquals(1, count($constraint));

        try {
            $constraint->evaluate($a);
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(<<<EOF
Failed asserting that two variables don't reference the same object.

EOF
              ,
              $this->trimnl(PHPUnit_Framework_TestFailure::exceptionToString($e))
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsIdentical
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::identicalTo
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsNotIdentical2()
    {
        $a = new stdClass;

        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::identicalTo($a)
        );

        try {
            $constraint->evaluate($a, 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(<<<EOF
custom message
Failed asserting that two variables don't reference the same object.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsIdentical
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::identicalTo
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsNotIdentical3()
    {
        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::identicalTo('a')
        );

        try {
            $constraint->evaluate('a', 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(<<<EOF
custom message
Failed asserting that two strings are not identical.

EOF
              ,
              $this->trimnl(PHPUnit_Framework_TestFailure::exceptionToString($e))
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsInstanceOf
     * @covers PHPUnit_Framework_Assert::isInstanceOf
     * @covers PHPUnit_Framework_Constraint::count
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsInstanceOf()
    {
        $constraint = PHPUnit_Framework_Assert::isInstanceOf('Exception');

        $this->assertFalse($constraint->evaluate(new stdClass, '', true));
        $this->assertTrue($constraint->evaluate(new Exception, '', true));
        $this->assertEquals('is instance of class "Exception"', $constraint->toString());
        $this->assertEquals(1, count($constraint));

        $interfaceConstraint = PHPUnit_Framework_Assert::isInstanceOf('Countable');
        $this->assertFalse($interfaceConstraint->evaluate(new stdClass, '', true));
        $this->assertTrue($interfaceConstraint->evaluate(new ArrayObject, '', true));
        $this->assertEquals('is instance of interface "Countable"', $interfaceConstraint->toString());

        try {
            $constraint->evaluate(new stdClass);
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
Failed asserting that stdClass Object () is an instance of class "Exception".

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsInstanceOf
     * @covers PHPUnit_Framework_Assert::isInstanceOf
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsInstanceOf2()
    {
        $constraint = PHPUnit_Framework_Assert::isInstanceOf('Exception');

        try {
            $constraint->evaluate(new stdClass, 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(<<<EOF
custom message
Failed asserting that stdClass Object () is an instance of class "Exception".

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsInstanceOf
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::isInstanceOf
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsNotInstanceOf()
    {
        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::isInstanceOf('stdClass')
        );

        $this->assertFalse($constraint->evaluate(new stdClass, '', true));
        $this->assertTrue($constraint->evaluate(new Exception, '', true));
        $this->assertEquals('is not instance of class "stdClass"', $constraint->toString());
        $this->assertEquals(1, count($constraint));

        try {
            $constraint->evaluate(new stdClass);
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
Failed asserting that stdClass Object () is not an instance of class "stdClass".

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsInstanceOf
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::isInstanceOf
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsNotInstanceOf2()
    {
        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::isInstanceOf('stdClass')
        );

        try {
            $constraint->evaluate(new stdClass, 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(<<<EOF
custom message
Failed asserting that stdClass Object () is not an instance of class "stdClass".

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsType
     * @covers PHPUnit_Framework_Assert::isType
     * @covers PHPUnit_Framework_Constraint::count
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsType()
    {
        $constraint = PHPUnit_Framework_Assert::isType('string');

        $this->assertFalse($constraint->evaluate(0, '', true));
        $this->assertTrue($constraint->evaluate('', '', true));
        $this->assertEquals('is of type "string"', $constraint->toString());
        $this->assertEquals(1, count($constraint));

        try {
            $constraint->evaluate(new stdClass);
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertStringMatchesFormat(<<<EOF
Failed asserting that stdClass Object &%x () is of type "string".

EOF
              ,
              $this->trimnl(PHPUnit_Framework_TestFailure::exceptionToString($e))
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsType
     * @covers PHPUnit_Framework_Assert::isType
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsType2()
    {
        $constraint = PHPUnit_Framework_Assert::isType('string');

        try {
            $constraint->evaluate(new stdClass, 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertStringMatchesFormat(<<<EOF
custom message
Failed asserting that stdClass Object &%x () is of type "string".

EOF
              ,
              $this->trimnl(PHPUnit_Framework_TestFailure::exceptionToString($e))
            );

            return;
        }

        $this->fail();
    }

    public function resources()
    {
        $fh = fopen(__FILE__, 'r');
        fclose($fh);

        return array(
            'open resource'     => array(fopen(__FILE__, 'r')),
            'closed resource'   => array($fh),
        );
    }

    /**
     * @dataProvider resources
     * @covers PHPUnit_Framework_Constraint_IsType
     * @covers PHPUnit_Framework_Assert::isType
     */
    public function testConstraintIsResourceTypeEvaluatesCorrectlyWithResources($resource)
    {
        $constraint = PHPUnit_Framework_Assert::isType('resource');

        $this->assertTrue($constraint->evaluate($resource, '', true));

        @fclose($resource);
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsType
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::isType
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsNotType()
    {
        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::isType('string')
        );

        $this->assertTrue($constraint->evaluate(0, '', true));
        $this->assertFalse($constraint->evaluate('', '', true));
        $this->assertEquals('is not of type "string"', $constraint->toString());
        $this->assertEquals(1, count($constraint));

        try {
            $constraint->evaluate('');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
Failed asserting that '' is not of type "string".

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsType
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::isType
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsNotType2()
    {
        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::isType('string')
        );

        try {
            $constraint->evaluate('', 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(<<<EOF
custom message
Failed asserting that '' is not of type "string".

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsNull
     * @covers PHPUnit_Framework_Assert::isNull
     * @covers PHPUnit_Framework_Constraint::count
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsNull()
    {
        $constraint = PHPUnit_Framework_Assert::isNull();

        $this->assertFalse($constraint->evaluate(0, '', true));
        $this->assertTrue($constraint->evaluate(null, '', true));
        $this->assertEquals('is null', $constraint->toString());
        $this->assertEquals(1, count($constraint));

        try {
            $constraint->evaluate(0);
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(<<<EOF
Failed asserting that 0 is null.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsNull
     * @covers PHPUnit_Framework_Assert::isNull
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsNull2()
    {
        $constraint = PHPUnit_Framework_Assert::isNull();

        try {
            $constraint->evaluate(0, 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(<<<EOF
custom message
Failed asserting that 0 is null.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsNull
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::isNull
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_Constraint::count
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsNotNull()
    {
        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::isNull()
        );

        $this->assertFalse($constraint->evaluate(null, '', true));
        $this->assertTrue($constraint->evaluate(0, '', true));
        $this->assertEquals('is not null', $constraint->toString());
        $this->assertEquals(1, count($constraint));

        try {
            $constraint->evaluate(null);
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(<<<EOF
Failed asserting that null is not null.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsNull
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::isNull
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintIsNotNull2()
    {
        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::isNull()
        );

        try {
            $constraint->evaluate(null, 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(<<<EOF
custom message
Failed asserting that null is not null.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_LessThan
     * @covers PHPUnit_Framework_Assert::lessThan
     * @covers PHPUnit_Framework_Constraint::count
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintLessThan()
    {
        $constraint = PHPUnit_Framework_Assert::lessThan(1);

        $this->assertTrue($constraint->evaluate(0, '', true));
        $this->assertFalse($constraint->evaluate(1, '', true));
        $this->assertEquals('is less than 1', $constraint->toString());
        $this->assertEquals(1, count($constraint));

        try {
            $constraint->evaluate(1);
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
Failed asserting that 1 is less than 1.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_LessThan
     * @covers PHPUnit_Framework_Assert::lessThan
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintLessThan2()
    {
        $constraint = PHPUnit_Framework_Assert::lessThan(1);

        try {
            $constraint->evaluate(1, 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
custom message
Failed asserting that 1 is less than 1.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_LessThan
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::lessThan
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintNotLessThan()
    {
        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::lessThan(1)
        );

        $this->assertTrue($constraint->evaluate(1, '', true));
        $this->assertFalse($constraint->evaluate(0, '', true));
        $this->assertEquals('is not less than 1', $constraint->toString());
        $this->assertEquals(1, count($constraint));

        try {
            $constraint->evaluate(0);
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
Failed asserting that 0 is not less than 1.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_LessThan
     * @covers PHPUnit_Framework_Constraint_Not
     * @covers PHPUnit_Framework_Assert::lessThan
     * @covers PHPUnit_Framework_Assert::logicalNot
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintNotLessThan2()
    {
        $constraint = PHPUnit_Framework_Assert::logicalNot(
          PHPUnit_Framework_Assert::lessThan(1)
        );

        try {
            $constraint->evaluate(0, 'custom message');
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
custom message
Failed asserting that 0 is not less than 1.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_IsEqual
     * @covers PHPUnit_Framework_Constraint_LessThan
     * @covers PHPUnit_Framework_Constraint_Or
     * @covers PHPUnit_Framework_Assert::lessThanOrEqual
     * @covers PHPUnit_Framework_TestFailure::exceptionToString
     */
    public function testConstraintLessThanOrEqual()
    {
        $constraint = PHPUnit_Framework_Assert::lessThanOrEqual(1);

        $this->assertTrue($constraint->evaluate(1, '', true));
        $this->assertFalse($constraint->evaluate(2, '', true));
        $this->assertEquals('is equal to 1 or is less than 1', $constraint->toString());
        $this->assertEquals(2, count($constraint));

        try {
            $constraint->evaluate(2);
        } catch (PHPUnit_Framework_ExpectationFailedException $e) {
            $this->assertEquals(
              <<<EOF
Failed asserting that 2 is equal to 1 or is less than 1.

EOF
              ,
              PHPUnit_Framework_TestFailure::exceptionToString($e)
            );

            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Constraint_Callback
     */
    public function testConstraintCallback()
    {
        $closureReflect = function ($parameter) {
            return $parameter;
        };

        $closureWithoutParameter = function () {
            return true;
        };

        $constraint = PHPUnit_Framework_Assert::callback($closureWithoutParameter);
        $this->assertTrue($constraint->evaluate('', '', true));

        $constraint = PHPUnit_Framework_Assert::callback($closureReflect);
        $this->assertTrue($constraint->evaluate(true, '', true));
        $this->assertFalse($constraint->evaluate(false, '', true));

        $callback   = array($this, 'callbackReturningTrue');
        $constraint = PHPUnit_Framework_Assert::callback($callback);