<?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 2.0.0
 */
class Framework_AssertTest extends PHPUnit_Framework_TestCase
{
    /**
     * @var string
     */
    private $filesDirectory;

    protected function setUp()
    {
        $this->filesDirectory = dirname(__DIR__) . DIRECTORY_SEPARATOR . '_files' . DIRECTORY_SEPARATOR;
    }

    /**
     * @covers PHPUnit_Framework_Assert::fail
     */
    public function testFail()
    {
        try {
            $this->fail();
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        throw new PHPUnit_Framework_AssertionFailedError('Fail did not throw fail exception');
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertContains
     */
    public function testAssertSplObjectStorageContainsObject()
    {
        $a = new stdClass;
        $b = new stdClass;
        $c = new SplObjectStorage;
        $c->attach($a);

        $this->assertContains($a, $c);

        try {
            $this->assertContains($b, $c);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertContains
     */
    public function testAssertArrayContainsObject()
    {
        $a = new stdClass;
        $b = new stdClass;

        $this->assertContains($a, array($a));

        try {
            $this->assertContains($a, array($b));
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertContains
     */
    public function testAssertArrayContainsString()
    {
        $this->assertContains('foo', array('foo'));

        try {
            $this->assertContains('foo', array('bar'));
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertContains
     */
    public function testAssertArrayContainsNonObject()
    {
        $this->assertContains('foo', array(true));

        try {
            $this->assertContains('foo', array(true), '', false, true, true);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertContainsOnlyInstancesOf
     */
    public function testAssertContainsOnlyInstancesOf()
    {
        $test = array(
            new Book(),
            new Book
        );
        $this->assertContainsOnlyInstancesOf('Book', $test);
        $this->assertContainsOnlyInstancesOf('stdClass', array(new stdClass()));

        $test2 = array(
            new Author('Test')
        );
        try {
            $this->assertContainsOnlyInstancesOf('Book', $test2);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }
        $this->fail();
    }

    /**
     * @covers            PHPUnit_Framework_Assert::assertArrayHasKey
     * @expectedException PHPUnit_Framework_Exception
     */
    public function testAssertArrayHasKeyThrowsExceptionForInvalidFirstArgument()
    {
        $this->assertArrayHasKey(null, array());
    }

    /**
     * @covers            PHPUnit_Framework_Assert::assertArrayHasKey
     * @expectedException PHPUnit_Framework_Exception
     */
    public function testAssertArrayHasKeyThrowsExceptionForInvalidSecondArgument()
    {
        $this->assertArrayHasKey(0, null);
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertArrayHasKey
     */
    public function testAssertArrayHasIntegerKey()
    {
        $this->assertArrayHasKey(0, array('foo'));

        try {
            $this->assertArrayHasKey(1, array('foo'));
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertArraySubset
     * @covers PHPUnit_Framework_Constraint_ArraySubset
     */
    public function testAssertArraySubset()
    {
        $array = array(
            'a' => 'item a',
            'b' => 'item b',
            'c' => array('a2' => 'item a2', 'b2' => 'item b2'),
            'd' => array('a2' => array('a3' => 'item a3', 'b3' => 'item b3'))
        );

        $this->assertArraySubset(array('a' => 'item a', 'c' => array('a2' => 'item a2')), $array);
        $this->assertArraySubset(array('a' => 'item a', 'd' => array('a2' => array('b3' => 'item b3'))), $array);

        try {
            $this->assertArraySubset(array('a' => 'bad value'), $array);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
        }

        try {
            $this->assertArraySubset(array('d' => array('a2' => array('bad index' => 'item b3'))), $array);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertArraySubset
     * @covers PHPUnit_Framework_Constraint_ArraySubset
     */
    public function testAssertArraySubsetWithDeepNestedArrays()
    {
        $array = array(
            'path' => array(
                'to' => array(
                    'the' => array(
                        'cake' => 'is a lie'
                    )
                )
            )
        );

        $this->assertArraySubset(array('path' => array()), $array);
        $this->assertArraySubset(array('path' => array('to' => array())), $array);
        $this->assertArraySubset(array('path' => array('to' => array('the' => array()))), $array);
        $this->assertArraySubset(array('path' => array('to' => array('the' => array('cake' => 'is a lie')))), $array);

        try {
            $this->assertArraySubset(array('path' => array('to' => array('the' => array('cake' => 'is not a lie')))), $array);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertArraySubset
     * @covers PHPUnit_Framework_Constraint_ArraySubset
     */
    public function testAssertArraySubsetWithNoStrictCheckAndObjects()
    {
        $obj       = new \stdClass;
        $reference = &$obj;
        $array     = array('a' => $obj);

        $this->assertArraySubset(array('a' => $reference), $array);
        $this->assertArraySubset(array('a' => new \stdClass), $array);
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertArraySubset
     * @covers PHPUnit_Framework_Constraint_ArraySubset
     */
    public function testAssertArraySubsetWithStrictCheckAndObjects()
    {
        $obj       = new \stdClass;
        $reference = &$obj;
        $array     = array('a' => $obj);

        $this->assertArraySubset(array('a' => $reference), $array, true);

        try {
            $this->assertArraySubset(array('a' => new \stdClass), $array, true);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail('Strict recursive array check fail.');
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertArraySubset
     * @covers PHPUnit_Framework_Constraint_ArraySubset
     * @expectedException PHPUnit_Framework_Exception
     * @expectedExceptionMessage array or ArrayAccess
     * @dataProvider assertArraySubsetInvalidArgumentProvider
     */
    public function testAssertArraySubsetRaisesExceptionForInvalidArguments($partial, $subject)
    {
        $this->assertArraySubset($partial, $subject);
    }

    /**
     * @return array
     */
    public function assertArraySubsetInvalidArgumentProvider()
    {
        return array(
            array(false, array()),
            array(array(), false),
        );
    }

    /**
     * @covers            PHPUnit_Framework_Assert::assertArrayNotHasKey
     * @expectedException PHPUnit_Framework_Exception
     */
    public function testAssertArrayNotHasKeyThrowsExceptionForInvalidFirstArgument()
    {
        $this->assertArrayNotHasKey(null, array());
    }

    /**
     * @covers            PHPUnit_Framework_Assert::assertArrayNotHasKey
     * @expectedException PHPUnit_Framework_Exception
     */
    public function testAssertArrayNotHasKeyThrowsExceptionForInvalidSecondArgument()
    {
        $this->assertArrayNotHasKey(0, null);
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertArrayNotHasKey
     */
    public function testAssertArrayNotHasIntegerKey()
    {
        $this->assertArrayNotHasKey(1, array('foo'));

        try {
            $this->assertArrayNotHasKey(0, array('foo'));
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertArrayHasKey
     */
    public function testAssertArrayHasStringKey()
    {
        $this->assertArrayHasKey('foo', array('foo' => 'bar'));

        try {
            $this->assertArrayHasKey('bar', array('foo' => 'bar'));
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertArrayNotHasKey
     */
    public function testAssertArrayNotHasStringKey()
    {
        $this->assertArrayNotHasKey('bar', array('foo' => 'bar'));

        try {
            $this->assertArrayNotHasKey('foo', array('foo' => 'bar'));
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertArrayHasKey
     */
    public function testAssertArrayHasKeyAcceptsArrayObjectValue()
    {
        $array        = new ArrayObject();
        $array['foo'] = 'bar';
        $this->assertArrayHasKey('foo', $array);
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertArrayHasKey
     * @expectedException PHPUnit_Framework_AssertionFailedError
     */
    public function testAssertArrayHasKeyProperlyFailsWithArrayObjectValue()
    {
        $array        = new ArrayObject();
        $array['bar'] = 'bar';
        $this->assertArrayHasKey('foo', $array);
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertArrayHasKey
     */
    public function testAssertArrayHasKeyAcceptsArrayAccessValue()
    {
        $array        = new SampleArrayAccess();
        $array['foo'] = 'bar';
        $this->assertArrayHasKey('foo', $array);
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertArrayHasKey
     * @expectedException PHPUnit_Framework_AssertionFailedError
     */
    public function testAssertArrayHasKeyProperlyFailsWithArrayAccessValue()
    {
        $array        = new SampleArrayAccess();
        $array['bar'] = 'bar';
        $this->assertArrayHasKey('foo', $array);
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertArrayNotHasKey
     */
    public function testAssertArrayNotHasKeyAcceptsArrayAccessValue()
    {
        $array        = new ArrayObject();
        $array['foo'] = 'bar';
        $this->assertArrayNotHasKey('bar', $array);
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertArrayNotHasKey
     * @expectedException PHPUnit_Framework_AssertionFailedError
     */
    public function testAssertArrayNotHasKeyPropertlyFailsWithArrayAccessValue()
    {
        $array        = new ArrayObject();
        $array['bar'] = 'bar';
        $this->assertArrayNotHasKey('bar', $array);
    }

    /**
     * @covers            PHPUnit_Framework_Assert::assertContains
     * @expectedException PHPUnit_Framework_Exception
     */
    public function testAssertContainsThrowsException()
    {
        $this->assertContains(null, null);
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertContains
     */
    public function testAssertIteratorContainsObject()
    {
        $foo = new stdClass;

        $this->assertContains($foo, new TestIterator(array($foo)));

        try {
            $this->assertContains($foo, new TestIterator(array(new stdClass)));
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertContains
     */
    public function testAssertIteratorContainsString()
    {
        $this->assertContains('foo', new TestIterator(array('foo')));

        try {
            $this->assertContains('foo', new TestIterator(array('bar')));
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertContains
     */
    public function testAssertStringContainsString()
    {
        $this->assertContains('foo', 'foobar');

        try {
            $this->assertContains('foo', 'bar');
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers            PHPUnit_Framework_Assert::assertNotContains
     * @expectedException PHPUnit_Framework_Exception
     */
    public function testAssertNotContainsThrowsException()
    {
        $this->assertNotContains(null, null);
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertNotContains
     */
    public function testAssertSplObjectStorageNotContainsObject()
    {
        $a = new stdClass;
        $b = new stdClass;
        $c = new SplObjectStorage;
        $c->attach($a);

        $this->assertNotContains($b, $c);

        try {
            $this->assertNotContains($a, $c);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertNotContains
     */
    public function testAssertArrayNotContainsObject()
    {
        $a = new stdClass;
        $b = new stdClass;

        $this->assertNotContains($a, array($b));

        try {
            $this->assertNotContains($a, array($a));
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertNotContains
     */
    public function testAssertArrayNotContainsString()
    {
        $this->assertNotContains('foo', array('bar'));

        try {
            $this->assertNotContains('foo', array('foo'));
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertNotContains
     */
    public function testAssertArrayNotContainsNonObject()
    {
        $this->assertNotContains('foo', array(true), '', false, true, true);

        try {
            $this->assertNotContains('foo', array(true));
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertNotContains
     */
    public function testAssertStringNotContainsString()
    {
        $this->assertNotContains('foo', 'bar');

        try {
            $this->assertNotContains('foo', 'foo');
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers            PHPUnit_Framework_Assert::assertContainsOnly
     * @expectedException PHPUnit_Framework_Exception
     */
    public function testAssertContainsOnlyThrowsException()
    {
        $this->assertContainsOnly(null, null);
    }

    /**
     * @covers            PHPUnit_Framework_Assert::assertNotContainsOnly
     * @expectedException PHPUnit_Framework_Exception
     */
    public function testAssertNotContainsOnlyThrowsException()
    {
        $this->assertNotContainsOnly(null, null);
    }

    /**
     * @covers            PHPUnit_Framework_Assert::assertContainsOnlyInstancesOf
     * @expectedException PHPUnit_Framework_Exception
     */
    public function testAssertContainsOnlyInstancesOfThrowsException()
    {
        $this->assertContainsOnlyInstancesOf(null, null);
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertContainsOnly
     */
    public function testAssertArrayContainsOnlyIntegers()
    {
        $this->assertContainsOnly('integer', array(1, 2, 3));

        try {
            $this->assertContainsOnly('integer', array('1', 2, 3));
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertNotContainsOnly
     */
    public function testAssertArrayNotContainsOnlyIntegers()
    {
        $this->assertNotContainsOnly('integer', array('1', 2, 3));

        try {
            $this->assertNotContainsOnly('integer', array(1, 2, 3));
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertContainsOnly
     */
    public function testAssertArrayContainsOnlyStdClass()
    {
        $this->assertContainsOnly('StdClass', array(new stdClass));

        try {
            $this->assertContainsOnly('StdClass', array('StdClass'));
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertNotContainsOnly
     */
    public function testAssertArrayNotContainsOnlyStdClass()
    {
        $this->assertNotContainsOnly('StdClass', array('StdClass'));

        try {
            $this->assertNotContainsOnly('StdClass', array(new stdClass));
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    protected function sameValues()
    {
        $object = new SampleClass(4, 8, 15);
        // cannot use $filesDirectory, because neither setUp() nor
        // setUpBeforeClass() are executed before the data providers
        $file     = dirname(__DIR__) . DIRECTORY_SEPARATOR . '_files' . DIRECTORY_SEPARATOR . 'foo.xml';
        $resource = fopen($file, 'r');

        return array(
            // null
            array(null, null),
            // strings
            array('a', 'a'),
            // integers
            array(0, 0),
            // floats
            array(2.3, 2.3),
            array(1/3, 1 - 2/3),
            array(log(0), log(0)),
            // arrays
            array(array(), array()),
            array(array(0 => 1), array(0 => 1)),
            array(array(0 => null), array(0 => null)),
            array(array('a', 'b' => array(1, 2)), array('a', 'b' => array(1, 2))),
            // objects
            array($object, $object),
            // resources
            array($resource, $resource),
        );
    }

    protected function notEqualValues()
    {
        // cyclic dependencies
        $book1                  = new Book;
        $book1->author          = new Author('Terry Pratchett');
        $book1->author->books[] = $book1;
        $book2                  = new Book;
        $book2->author          = new Author('Terry Pratch');
        $book2->author->books[] = $book2;

        $book3         = new Book;
        $book3->author = 'Terry Pratchett';
        $book4         = new stdClass;
        $book4->author = 'Terry Pratchett';

        $object1  = new SampleClass(4, 8, 15);
        $object2  = new SampleClass(16, 23, 42);
        $object3  = new SampleClass(4, 8, 15);
        $storage1 = new SplObjectStorage;
        $storage1->attach($object1);
        $storage2 = new SplObjectStorage;
        $storage2->attach($object3); // same content, different object

        // cannot use $filesDirectory, because neither setUp() nor
        // setUpBeforeClass() are executed before the data providers
        $file = dirname(__DIR__) . DIRECTORY_SEPARATOR . '_files' . DIRECTORY_SEPARATOR . 'foo.xml';

        return array(
            // strings
            array('a', 'b'),
            array('a', 'A'),
            // https://github.com/sebastianbergmann/phpunit/issues/1023
            array('9E6666666','9E7777777'),
            // integers
            array(1, 2),
            array(2, 1),
            // floats
            array(2.3, 4.2),
            array(2.3, 4.2, 0.5),
            array(array(2.3), array(4.2), 0.5),
            array(array(array(2.3)), array(array(4.2)), 0.5),
            array(new Struct(2.3), new Struct(4.2), 0.5),
            array(array(new Struct(2.3)), array(new Struct(4.2)), 0.5),
            // NAN
            array(NAN, NAN),
            // arrays
            array(array(), array(0 => 1)),
            array(array(0          => 1), array()),
            array(array(0          => null), array()),
            array(array(0          => 1, 1 => 2), array(0          => 1, 1 => 3)),
            array(array('a', 'b' => array(1, 2)), array('a', 'b' => array(2, 1))),
            // objects
            array(new SampleClass(4, 8, 15), new SampleClass(16, 23, 42)),
            array($object1, $object2),
            array($book1, $book2),
            array($book3, $book4), // same content, different class
            // resources
            array(fopen($file, 'r'), fopen($file, 'r')),
            // SplObjectStorage
            array($storage1, $storage2),
            // DOMDocument
            array(
                PHPUnit_Util_XML::load('<root></root>'),
                PHPUnit_Util_XML::load('<bar/>'),
            ),
            array(
                PHPUnit_Util_XML::load('<foo attr1="bar"/>'),
                PHPUnit_Util_XML::load('<foo attr1="foobar"/>'),
            ),
            array(
                PHPUnit_Util_XML::load('<foo> bar </foo>'),
                PHPUnit_Util_XML::load('<foo />'),
            ),
            array(
                PHPUnit_Util_XML::load('<foo xmlns="urn:myns:bar"/>'),
                PHPUnit_Util_XML::load('<foo xmlns="urn:notmyns:bar"/>'),
            ),
            array(
                PHPUnit_Util_XML::load('<foo> bar </foo>'),
                PHPUnit_Util_XML::load('<foo> bir </foo>'),
            ),
            array(
                new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/New_York')),
                new DateTime('2013-03-29 03:13:35', new DateTimeZone('America/New_York')),
            ),
            array(
                new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/New_York')),
                new DateTime('2013-03-29 03:13:35', new DateTimeZone('America/New_York')),
                3500
            ),
            array(
                new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/New_York')),
                new DateTime('2013-03-29 05:13:35', new DateTimeZone('America/New_York')),
                3500
            ),
            array(
                new DateTime('2013-03-29', new DateTimeZone('America/New_York')),
                new DateTime('2013-03-30', new DateTimeZone('America/New_York')),
            ),
            array(
                new DateTime('2013-03-29', new DateTimeZone('America/New_York')),
                new DateTime('2013-03-30', new DateTimeZone('America/New_York')),
                43200
            ),
            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')),
            ),
            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')),
                3500
            ),
            array(
                new DateTime('2013-03-30', new DateTimeZone('America/New_York')),
                new DateTime('2013-03-30', new DateTimeZone('America/Chicago')),
            ),
            array(
                new DateTime('2013-03-29T05:13:35-0600'),
                new DateTime('2013-03-29T04:13:35-0600'),
            ),
            array(
                new DateTime('2013-03-29T05:13:35-0600'),
                new DateTime('2013-03-29T05:13:35-0500'),
            ),
            // Exception
            //array(new Exception('Exception 1'), new Exception('Exception 2')),
            // different types
            array(new SampleClass(4, 8, 15), false),
            array(false, new SampleClass(4, 8, 15)),
            array(array(0        => 1, 1 => 2), false),
            array(false, array(0 => 1, 1 => 2)),
            array(array(), new stdClass),
            array(new stdClass, array()),
            // PHP: 0 == 'Foobar' => true!
            // We want these values to differ
            array(0, 'Foobar'),
            array('Foobar', 0),
            array(3, acos(8)),
            array(acos(8), 3)
        );
    }

    protected function equalValues()
    {
        // cyclic dependencies
        $book1                  = new Book;
        $book1->author          = new Author('Terry Pratchett');
        $book1->author->books[] = $book1;
        $book2                  = new Book;
        $book2->author          = new Author('Terry Pratchett');
        $book2->author->books[] = $book2;

        $object1  = new SampleClass(4, 8, 15);
        $object2  = new SampleClass(4, 8, 15);
        $storage1 = new SplObjectStorage;
        $storage1->attach($object1);
        $storage2 = new SplObjectStorage;
        $storage2->attach($object1);

        return array(
            // strings
            array('a', 'A', 0, false, true), // ignore case
            // arrays
            array(array('a' => 1, 'b' => 2), array('b' => 2, 'a' => 1)),
            array(array(1), array('1')),
            array(array(3, 2, 1), array(2, 3, 1), 0, true), // canonicalized comparison
            // floats
            array(2.3, 2.5, 0.5),
            array(array(2.3), array(2.5), 0.5),
            array(array(array(2.3)), array(array(2.5)), 0.5),
            array(new Struct(2.3), new Struct(2.5), 0.5),
            array(array(new Struct(2.3)), array(new Struct(2.5)), 0.5),
            // numeric with delta
            array(1, 2, 1),
            // objects
            array($object1, $object2),
            array($book1, $book2),
            // SplObjectStorage
            array($storage1, $storage2),
            // DOMDocument
            array(
                PHPUnit_Util_XML::load('<root></root>'),
                PHPUnit_Util_XML::load('<root/>'),
            ),
            array(
                PHPUnit_Util_XML::load('<root attr="bar"></root>'),
                PHPUnit_Util_XML::load('<root attr="bar"/>'),
            ),
            array(
                PHPUnit_Util_XML::load('<root><foo attr="bar"></foo></root>'),
                PHPUnit_Util_XML::load('<root><foo attr="bar"/></root>'),
            ),
            array(
                PHPUnit_Util_XML::load("<root>\n  <child/>\n</root>"),
                PHPUnit_Util_XML::load('<root><child/></root>'),
            ),
            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/New_York')),
            ),
            array(
                new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/New_York')),
                new DateTime('2013-03-29 04:13:25', new DateTimeZone('America/New_York')),
                10
            ),
            array(
                new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/New_York')),
                new DateTime('2013-03-29 04:14:40', new DateTimeZone('America/New_York')),
                65
            ),
            array(
                new DateTime('2013-03-29', new DateTimeZone('America/New_York')),
                new DateTime('2013-03-29', new DateTimeZone('America/New_York')),
            ),
            array(
                new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/New_York')),
                new DateTime('2013-03-29 03:13:35', new DateTimeZone('America/Chicago')),
            ),
            array(
                new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/New_York')),
                new DateTime('2013-03-29 03:13:49', new DateTimeZone('America/Chicago')),
                15
            ),
            array(
                new DateTime('2013-03-30', new DateTimeZone('America/New_York')),
                new DateTime('2013-03-29 23:00:00', new DateTimeZone('America/Chicago')),
            ),
            array(
                new DateTime('2013-03-30', new DateTimeZone('America/New_York')),
                new DateTime('2013-03-29 23:01:30', new DateTimeZone('America/Chicago')),
                100
            ),
            array(
                new DateTime('@1364616000'),
                new DateTime('2013-03-29 23:00:00', new DateTimeZone('America/Chicago')),
            ),
            array(
                new DateTime('2013-03-29T05:13:35-0500'),
                new DateTime('2013-03-29T04:13:35-0600'),
            ),
            // Exception
            //array(new Exception('Exception 1'), new Exception('Exception 1')),
            // mixed types
            array(0, '0'),
            array('0', 0),
            array(2.3, '2.3'),
            array('2.3', 2.3),
            array((string) (1/3), 1 - 2/3),
            array(1/3, (string) (1 - 2/3)),
            array('string representation', new ClassWithToString),
            array(new ClassWithToString, 'string representation'),
        );
    }

    public function equalProvider()
    {
        // same |= equal
        return array_merge($this->equalValues(), $this->sameValues());
    }

    public function notEqualProvider()
    {
        return $this->notEqualValues();
    }

    public function sameProvider()
    {
        return $this->sameValues();
    }

    public function notSameProvider()
    {
        // not equal |= not same
        // equal, ¬same |= not same
        return array_merge($this->notEqualValues(), $this->equalValues());
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertEquals
     * @dataProvider equalProvider
     */
    public function testAssertEqualsSucceeds($a, $b, $delta = 0.0, $canonicalize = false, $ignoreCase = false)
    {
        $this->assertEquals($a, $b, '', $delta, 10, $canonicalize, $ignoreCase);
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertEquals
     * @dataProvider notEqualProvider
     */
    public function testAssertEqualsFails($a, $b, $delta = 0.0, $canonicalize = false, $ignoreCase = false)
    {
        try {
            $this->assertEquals($a, $b, '', $delta, 10, $canonicalize, $ignoreCase);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertNotEquals
     * @dataProvider notEqualProvider
     */
    public function testAssertNotEqualsSucceeds($a, $b, $delta = 0.0, $canonicalize = false, $ignoreCase = false)
    {
        $this->assertNotEquals($a, $b, '', $delta, 10, $canonicalize, $ignoreCase);
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertNotEquals
     * @dataProvider equalProvider
     */
    public function testAssertNotEqualsFails($a, $b, $delta = 0.0, $canonicalize = false, $ignoreCase = false)
    {
        try {
            $this->assertNotEquals($a, $b, '', $delta, 10, $canonicalize, $ignoreCase);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertSame
     * @dataProvider sameProvider
     */
    public function testAssertSameSucceeds($a, $b)
    {
        $this->assertSame($a, $b);
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertSame
     * @dataProvider notSameProvider
     */
    public function testAssertSameFails($a, $b)
    {
        try {
            $this->assertSame($a, $b);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertNotSame
     * @dataProvider notSameProvider
     */
    public function testAssertNotSameSucceeds($a, $b)
    {
        $this->assertNotSame($a, $b);
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertNotSame
     * @dataProvider sameProvider
     */
    public function testAssertNotSameFails($a, $b)
    {
        try {
            $this->assertNotSame($a, $b);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertXmlFileEqualsXmlFile
     */
    public function testAssertXmlFileEqualsXmlFile()
    {
        $this->assertXmlFileEqualsXmlFile(
            $this->filesDirectory . 'foo.xml',
            $this->filesDirectory . 'foo.xml'
        );

        try {
            $this->assertXmlFileEqualsXmlFile(
                $this->filesDirectory . 'foo.xml',
                $this->filesDirectory . 'bar.xml'
            );
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertXmlFileNotEqualsXmlFile
     */
    public function testAssertXmlFileNotEqualsXmlFile()
    {
        $this->assertXmlFileNotEqualsXmlFile(
            $this->filesDirectory . 'foo.xml',
            $this->filesDirectory . 'bar.xml'
        );

        try {
            $this->assertXmlFileNotEqualsXmlFile(
                $this->filesDirectory . 'foo.xml',
                $this->filesDirectory . 'foo.xml'
            );
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertXmlStringEqualsXmlFile
     */
    public function testAssertXmlStringEqualsXmlFile()
    {
        $this->assertXmlStringEqualsXmlFile(
            $this->filesDirectory . 'foo.xml',
            file_get_contents($this->filesDirectory . 'foo.xml')
        );

        try {
            $this->assertXmlStringEqualsXmlFile(
                $this->filesDirectory . 'foo.xml',
                file_get_contents($this->filesDirectory . 'bar.xml')
            );
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertXmlStringNotEqualsXmlFile
     */
    public function testXmlStringNotEqualsXmlFile()
    {
        $this->assertXmlStringNotEqualsXmlFile(
            $this->filesDirectory . 'foo.xml',
            file_get_contents($this->filesDirectory . 'bar.xml')
        );

        try {
            $this->assertXmlStringNotEqualsXmlFile(
                $this->filesDirectory . 'foo.xml',
                file_get_contents($this->filesDirectory . 'foo.xml')
            );
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertXmlStringEqualsXmlString
     */
    public function testAssertXmlStringEqualsXmlString()
    {
        $this->assertXmlStringEqualsXmlString('<root/>', '<root/>');

        try {
            $this->assertXmlStringEqualsXmlString('<foo/>', '<bar/>');
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @expectedException PHPUnit_Framework_Exception
     * @covers            PHPUnit_Framework_Assert::assertXmlStringEqualsXmlString
     * @ticket            1860
     */
    public function testAssertXmlStringEqualsXmlString2()
    {
        $this->assertXmlStringEqualsXmlString('<a></b>', '<c></d>');
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertXmlStringEqualsXmlString
     * @ticket 1860
     */
    public function testAssertXmlStringEqualsXmlString3()
    {
        $expected = <<<XML
<?xml version="1.0"?>
<root>
    <node />
</root>
XML;

        $actual = <<<XML
<?xml version="1.0"?>
<root>
<node />
</root>
XML;

        $this->assertXmlStringEqualsXmlString($expected, $actual);
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertXmlStringNotEqualsXmlString
     */
    public function testAssertXmlStringNotEqualsXmlString()
    {
        $this->assertXmlStringNotEqualsXmlString('<foo/>', '<bar/>');

        try {
            $this->assertXmlStringNotEqualsXmlString('<root/>', '<root/>');
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertEqualXMLStructure
     */
    public function testXMLStructureIsSame()
    {
        $expected = new DOMDocument;
        $expected->load($this->filesDirectory . 'structureExpected.xml');

        $actual = new DOMDocument;
        $actual->load($this->filesDirectory . 'structureExpected.xml');

        $this->assertEqualXMLStructure(
            $expected->firstChild, $actual->firstChild, true
        );
    }

    /**
     * @covers            PHPUnit_Framework_Assert::assertEqualXMLStructure
     * @expectedException PHPUnit_Framework_ExpectationFailedException
     */
    public function testXMLStructureWrongNumberOfAttributes()
    {
        $expected = new DOMDocument;
        $expected->load($this->filesDirectory . 'structureExpected.xml');

        $actual = new DOMDocument;
        $actual->load($this->filesDirectory . 'structureWrongNumberOfAttributes.xml');

        $this->assertEqualXMLStructure(
            $expected->firstChild, $actual->firstChild, true
        );
    }

    /**
     * @covers            PHPUnit_Framework_Assert::assertEqualXMLStructure
     * @expectedException PHPUnit_Framework_ExpectationFailedException
     */
    public function testXMLStructureWrongNumberOfNodes()
    {
        $expected = new DOMDocument;
        $expected->load($this->filesDirectory . 'structureExpected.xml');

        $actual = new DOMDocument;
        $actual->load($this->filesDirectory . 'structureWrongNumberOfNodes.xml');

        $this->assertEqualXMLStructure(
            $expected->firstChild, $actual->firstChild, true
        );
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertEqualXMLStructure
     */
    public function testXMLStructureIsSameButDataIsNot()
    {
        $expected = new DOMDocument;
        $expected->load($this->filesDirectory . 'structureExpected.xml');

        $actual = new DOMDocument;
        $actual->load($this->filesDirectory . 'structureIsSameButDataIsNot.xml');

        $this->assertEqualXMLStructure(
            $expected->firstChild, $actual->firstChild, true
        );
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertEqualXMLStructure
     */
    public function testXMLStructureAttributesAreSameButValuesAreNot()
    {
        $expected = new DOMDocument;
        $expected->load($this->filesDirectory . 'structureExpected.xml');

        $actual = new DOMDocument;
        $actual->load($this->filesDirectory . 'structureAttributesAreSameButValuesAreNot.xml');

        $this->assertEqualXMLStructure(
            $expected->firstChild, $actual->firstChild, true
        );
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertEqualXMLStructure
     */
    public function testXMLStructureIgnoreTextNodes()
    {
        $expected = new DOMDocument;
        $expected->load($this->filesDirectory . 'structureExpected.xml');

        $actual = new DOMDocument;
        $actual->load($this->filesDirectory . 'structureIgnoreTextNodes.xml');

        $this->assertEqualXMLStructure(
            $expected->firstChild, $actual->firstChild, true
        );
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertEquals
     */
    public function testAssertStringEqualsNumeric()
    {
        $this->assertEquals('0', 0);

        try {
            $this->assertEquals('0', 1);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertNotEquals
     */
    public function testAssertStringEqualsNumeric2()
    {
        $this->assertNotEquals('A', 0);
    }

    /**
     * @covers            PHPUnit_Framework_Assert::assertFileExists
     * @expectedException PHPUnit_Framework_Exception
     */
    public function testAssertFileExistsThrowsException()
    {
        $this->assertFileExists(null);
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertFileExists
     */
    public function testAssertFileExists()
    {
        $this->assertFileExists(__FILE__);

        try {
            $this->assertFileExists(__DIR__ . DIRECTORY_SEPARATOR . 'NotExisting');
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers            PHPUnit_Framework_Assert::assertFileNotExists
     * @expectedException PHPUnit_Framework_Exception
     */
    public function testAssertFileNotExistsThrowsException()
    {
        $this->assertFileNotExists(null);
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertFileNotExists
     */
    public function testAssertFileNotExists()
    {
        $this->assertFileNotExists(__DIR__ . DIRECTORY_SEPARATOR . 'NotExisting');

        try {
            $this->assertFileNotExists(__FILE__);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertObjectHasAttribute
     */
    public function testAssertObjectHasAttribute()
    {
        $o = new Author('Terry Pratchett');

        $this->assertObjectHasAttribute('name', $o);

        try {
            $this->assertObjectHasAttribute('foo', $o);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertObjectNotHasAttribute
     */
    public function testAssertObjectNotHasAttribute()
    {
        $o = new Author('Terry Pratchett');

        $this->assertObjectNotHasAttribute('foo', $o);

        try {
            $this->assertObjectNotHasAttribute('name', $o);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertNull
     */
    public function testAssertNull()
    {
        $this->assertNull(null);

        try {
            $this->assertNull(new stdClass);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertNotNull
     */
    public function testAssertNotNull()
    {
        $this->assertNotNull(new stdClass);

        try {
            $this->assertNotNull(null);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertTrue
     */
    public function testAssertTrue()
    {
        $this->assertTrue(true);

        try {
            $this->assertTrue(false);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertNotTrue
     */
    public function testAssertNotTrue()
    {
        $this->assertNotTrue(false);
        $this->assertNotTrue(1);
        $this->assertNotTrue('true');

        try {
            $this->assertNotTrue(true);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertFalse
     */
    public function testAssertFalse()
    {
        $this->assertFalse(false);

        try {
            $this->assertFalse(true);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertNotFalse
     */
    public function testAssertNotFalse()
    {
        $this->assertNotFalse(true);
        $this->assertNotFalse(0);
        $this->assertNotFalse('');

        try {
            $this->assertNotFalse(false);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers            PHPUnit_Framework_Assert::assertRegExp
     * @expectedException PHPUnit_Framework_Exception
     */
    public function testAssertRegExpThrowsException()
    {
        $this->assertRegExp(null, null);
    }

    /**
     * @covers            PHPUnit_Framework_Assert::assertRegExp
     * @expectedException PHPUnit_Framework_Exception
     */
    public function testAssertRegExpThrowsException2()
    {
        $this->assertRegExp('', null);
    }

    /**
     * @covers            PHPUnit_Framework_Assert::assertNotRegExp
     * @expectedException PHPUnit_Framework_Exception
     */
    public function testAssertNotRegExpThrowsException()
    {
        $this->assertNotRegExp(null, null);
    }

    /**
     * @covers            PHPUnit_Framework_Assert::assertNotRegExp
     * @expectedException PHPUnit_Framework_Exception
     */
    public function testAssertNotRegExpThrowsException2()
    {
        $this->assertNotRegExp('', null);
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertRegExp
     */
    public function testAssertRegExp()
    {
        $this->assertRegExp('/foo/', 'foobar');

        try {
            $this->assertRegExp('/foo/', 'bar');
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertNotRegExp
     */
    public function testAssertNotRegExp()
    {
        $this->assertNotRegExp('/foo/', 'bar');

        try {
            $this->assertNotRegExp('/foo/', 'foobar');
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertSame
     */
    public function testAssertSame()
    {
        $o = new stdClass;

        $this->assertSame($o, $o);

        try {
            $this->assertSame(
                new stdClass,
                new stdClass
            );
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertSame
     */
    public function testAssertSame2()
    {
        $this->assertSame(true, true);
        $this->assertSame(false, false);

        try {
            $this->assertSame(true, false);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertNotSame
     */
    public function testAssertNotSame()
    {
        $this->assertNotSame(
            new stdClass,
            null
        );

        $this->assertNotSame(
            null,
            new stdClass
        );

        $this->assertNotSame(
            new stdClass,
            new stdClass
        );

        $o = new stdClass;

        try {
            $this->assertNotSame($o, $o);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertNotSame
     */
    public function testAssertNotSame2()
    {
        $this->assertNotSame(true, false);
        $this->assertNotSame(false, true);

        try {
            $this->assertNotSame(true, true);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertNotSame
     */
    public function testAssertNotSameFailsNull()
    {
        try {
            $this->assertNotSame(null, null);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertGreaterThan
     */
    public function testGreaterThan()
    {
        $this->assertGreaterThan(1, 2);

        try {
            $this->assertGreaterThan(2, 1);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertAttributeGreaterThan
     */
    public function testAttributeGreaterThan()
    {
        $this->assertAttributeGreaterThan(
            1, 'bar', new ClassWithNonPublicAttributes
        );

        try {
            $this->assertAttributeGreaterThan(
                1, 'foo', new ClassWithNonPublicAttributes
            );
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            return;
        }

        $this->fail();
    }

    /**
     * @covers PHPUnit_Framework_Assert::assertGreaterThanOrEqual
     */
    public function testGreaterThanOrEqual()
    {
        $this->assertGreaterThanOrEqual(1, 2);

        try {
            $this->assertGreaterThanOrEqual(2, 1);
        } catch (PHPUnit_Framework_AssertionFailedError $e) {
            ret