PHPUnit9.0 断言-assertEquals()

assertEquals(mixed $expected, mixed $actual[, string $message = ''])

PHPUnit9.0 断言集合

当两个变量 ​$expected​ 和 ​$actual​ 不相等时报告错误，错误讯息由 ​$message​ 指定。
​assertNotEquals()​ 是与之相反的断言，接受相同的参数。
示例 1.14 assertEquals() 的用法

<?php declare(strict_types=1);
use PHPUnit\Framework\TestCase;

final class EqualsTest extends TestCase
{
    public function testFailure(): void
    {
        $this->assertEquals(1, 0);
    }

    public function testFailure2(): void
    {
        $this->assertEquals('bar', 'baz');
    }

    public function testFailure3(): void
    {
        $this->assertEquals("foo\nbar\nbaz\n", "foo\nbah\nbaz\n");
    }
}

$ phpunit EqualsTest
PHPUnit latest.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.

如果 ​$expected​ 和 ​$actual​ 是某些特定的类型，将使用更加专门的比较方式。

assertEquals(DOMDocument $expected, DOMDocument $actual[, string $message = ''])

当​$expected​和 ​$actual ​这两个 ​DOMDocument对象所表示的 XML 文档对应的无注释规范形式不相同时报告错误，错误讯息由 ​$message​ 指定。

示例 1.15 对 DOMDocument 对象使用 assertEquals() 时的用法

<?php declare(strict_types=1);
use PHPUnit\Framework\TestCase;

final class EqualsTest extends TestCase
{
    public function testFailure(): void
    {
        $expected = new DOMDocument;
        $expected->loadXML('<foo><bar/></foo>');

        $actual = new DOMDocument;
        $actual->loadXML('<bar><foo/></bar>');

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

$ phpunit EqualsTest
PHPUnit latest.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 = ''])

当 ​$expected​ 和 ​$actual​ 这两个对象的属性值不相等时报告错误，错误讯息由 ​$message​ 指定。
示例 1.16 对对象使用 assertEquals() 时的用法

<?php declare(strict_types=1);
use PHPUnit\Framework\TestCase;

final class EqualsTest extends TestCase
{
    public function testFailure(): void
    {
        $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 latest.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 = ''])

当 ​$expected​ 和 ​$actual​ 这两个数组不相等时报告错误，错误讯息由 ​$message​ 指定。
示例 1.17 对数组使用 assertEquals() 时的用法

<?php declare(strict_types=1);
use PHPUnit\Framework\TestCase;

final class EqualsTest extends TestCase
{
    public function testFailure(): void
    {
        $this->assertEquals(['a', 'b', 'c'], ['a', 'c', 'd']);
    }
}

$ phpunit EqualsTest
PHPUnit latest.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.