assertEquals()
assertEquals(mixed $expected, mixed $actual[, string $message = ''])
Reports an error identified by $message
if the two variables $expected
and $actual
are not equal.
assertNotEquals()
is the inverse of this assertion and takes the same arguments.
assertAttributeEquals()
and assertAttributeNotEquals()
are convenience wrappers that use a public
, protected
, or private
attribute of a class or object as the actual value.
Example A.16: Usage of assertEquals()
<?php use PHPUnit\Framework\TestCase; class EqualsTest extends TestCase { public function testFailure() { $this->assertEquals(1, 0); } public function testFailure2() { $this->assertEquals('bar', 'baz'); } public function testFailure3() { $this->assertEquals("foo\nbar\nbaz\n", "foo\nbah\nbaz\n"); } } ?>
phpunit EqualsTest PHPUnit 5.6.0 by Sebastian Bergmann and contributors. FFF Time: 0 seconds, Memory: 5.25Mb There were 3 failures: 1) EqualsTest::testFailure Failed asserting that 0 matches expected 1. /home/sb/EqualsTest.php:6 2) EqualsTest::testFailure2 Failed asserting that two strings are equal. --- Expected +++ Actual @@ @@ -'bar' +'baz' /home/sb/EqualsTest.php:11 3) EqualsTest::testFailure3 Failed asserting that two strings are equal. --- Expected +++ Actual @@ @@ 'foo -bar +bah baz ' /home/sb/EqualsTest.php:16 FAILURES! Tests: 3, Assertions: 3, Failures: 3.
More specialized comparisons are used for specific argument types for $expected
and $actual
, see below.
assertEquals(float $expected, float $actual[, string $message = '', float $delta = 0])
Reports an error identified by $message
if the two floats $expected
and $actual
are not within $delta
of each other.
Please read "What Every Computer Scientist Should Know About Floating-Point Arithmetic" to understand why $delta
is neccessary.
Example A.17: Usage of assertEquals() with floats
<?php use PHPUnit\Framework\TestCase; class EqualsTest extends TestCase { public function testSuccess() { $this->assertEquals(1.0, 1.1, '', 0.2); } public function testFailure() { $this->assertEquals(1.0, 1.1); } } ?>
phpunit EqualsTest PHPUnit 5.6.0 by Sebastian Bergmann and contributors. .F Time: 0 seconds, Memory: 5.75Mb There was 1 failure: 1) EqualsTest::testFailure Failed asserting that 1.1 matches expected 1.0. /home/sb/EqualsTest.php:11 FAILURES! Tests: 2, Assertions: 2, Failures: 1.
assertEquals(DOMDocument $expected, DOMDocument $actual[, string $message = ''])
Reports an error identified by $message
if the uncommented canonical form of the XML documents represented by the two DOMDocument objects $expected
and $actual
are not equal.
Example A.18: Usage of assertEquals() with DOMDocument objects
<?php use PHPUnit\Framework\TestCase; class EqualsTest extends TestCase { public function testFailure() { $expected = new DOMDocument; $expected->loadXML('<foo><bar/></foo>'); $actual = new DOMDocument; $actual->loadXML('<bar><foo/></bar>'); $this->assertEquals($expected, $actual); } } ?>
phpunit EqualsTest PHPUnit 5.6.0 by Sebastian Bergmann and contributors. F Time: 0 seconds, Memory: 5.00Mb There was 1 failure: 1) EqualsTest::testFailure Failed asserting that two DOM documents are equal. --- Expected +++ Actual @@ @@ <?xml version="1.0"?> -<foo> - <bar/> -</foo> +<bar> + <foo/> +</bar> /home/sb/EqualsTest.php:12 FAILURES! Tests: 1, Assertions: 1, Failures: 1.
assertEquals(object $expected, object $actual[, string $message = ''])
Reports an error identified by $message
if the two objects $expected
and $actual
do not have equal attribute values.
Example A.19: Usage of assertEquals() with objects
<?php use PHPUnit\Framework\TestCase; class EqualsTest extends TestCase { public function testFailure() { $expected = new stdClass; $expected->foo = 'foo'; $expected->bar = 'bar'; $actual = new stdClass; $actual->foo = 'bar'; $actual->baz = 'bar'; $this->assertEquals($expected, $actual); } } ?>
phpunit EqualsTest PHPUnit 5.6.0 by Sebastian Bergmann and contributors. F Time: 0 seconds, Memory: 5.25Mb There was 1 failure: 1) EqualsTest::testFailure Failed asserting that two objects are equal. --- Expected +++ Actual @@ @@ stdClass Object ( - 'foo' => 'foo' - 'bar' => 'bar' + 'foo' => 'bar' + 'baz' => 'bar' ) /home/sb/EqualsTest.php:14 FAILURES! Tests: 1, Assertions: 1, Failures: 1.
assertEquals(array $expected, array $actual[, string $message = ''])
Reports an error identified by $message
if the two arrays $expected
and $actual
are not equal.
Example A.20: Usage of assertEquals() with arrays
<?php use PHPUnit\Framework\TestCase; class EqualsTest extends TestCase { public function testFailure() { $this->assertEquals(['a', 'b', 'c'], ['a', 'c', 'd']); } } ?>
phpunit EqualsTest PHPUnit 5.6.0 by Sebastian Bergmann and contributors. F Time: 0 seconds, Memory: 5.25Mb There was 1 failure: 1) EqualsTest::testFailure Failed asserting that two arrays are equal. --- Expected +++ Actual @@ @@ Array ( 0 => 'a' - 1 => 'b' - 2 => 'c' + 1 => 'c' + 2 => 'd' ) /home/sb/EqualsTest.php:6 FAILURES! Tests: 1, Assertions: 1, Failures: 1.
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