assertEquals()
assertEquals(mixed $expected, mixed $actual[, string $message = ""])
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。
assertAttributeEquals()
和 assertAttributeNotEquals()
是便捷包装(convenience wrapper),以某个类或对象的某个 public
、protected
或 private
属性作为实际值来进行比较。
Example A.13. assertEquals() 的用法
<?php
class EqualsTest extends PHPUnit_Framework_TestCase
{
public function testFailure()
{
$this->assertEquals(1, 0);
}
public function testFailure2()
{
$this->assertEquals("bar", "baz");
}
public function testFailure3()
{
$this->assertEquals("foo
bar
baz
", "foo
bah
baz
");
}
}
?>
phpunit EqualsTest
PHPUnit 5.0.0 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,参阅下文。
assertEquals(float $expected, float $actual[, string $message = "", float $delta = 0])
当两个浮点数 $expected
和 $actual
之间的差值(的绝对值)大于 $delta
时报告错误,错误讯息由 $message
指定。
关于为什么 $delta
参数是必须的,请阅读《关于浮点运算,每一位计算机科学从业人员都应该知道的事实》。
Example A.14. 将assertEquals()用于浮点数时的用法
<?php
class EqualsTest extends PHPUnit_Framework_TestCase
{
public function testSuccess()
{
$this->assertEquals(1.0, 1.1, "", 0.2);
}
public function testFailure()
{
$this->assertEquals(1.0, 1.1);
}
}
?>
phpunit EqualsTest
PHPUnit 5.0.0 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 = ""])
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。
Example A.15. assertEquals()应用于 DOMDocument 对象时的用法
<?php
class EqualsTest extends PHPUnit_Framework_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 5.0.0 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。
Example A.16. assertEquals()应用于对象时的用法
<?php
class EqualsTest extends PHPUnit_Framework_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 5.0.0 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。
Example A.17. assertEquals() 应用于数组时的用法
<?php
class EqualsTest extends PHPUnit_Framework_TestCase
{
public function testFailure()
{
$this->assertEquals(array("a", "b", "c"), array("a", "c", "d"));
}
}
?>
phpunit EqualsTest
PHPUnit 5.0.0 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.