PHP PHPUnit assertEqualsIgnoringCase()用法及代码示例

assertEqualsIgnoringCase()函数是PHPUnit中的内置函数，用于忽略预期字符串string-case来检查预期字符串是否等于实际字符串。如果实际字符串等于期望的字符串(忽略大小写)，则此断言将返回true，否则返回false。如果为真，则通过断言的测试用例，否则测试用例失败。

用法:

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

参数：该函数接受三个参数，如上面的语法所示。参数说明如下：

• $expected:此参数是代表期望数据的字符串。
• $actual：此参数是代表实际数据的字符串。
• $message:此参数采用字符串值。当测试用例失败时，此字符串消息将显示为错误消息。

以下示例程序旨在说明assertEqualsIgnoringCase()函数：

范例1：

<?php  
use PHPUnit\Framework\TestCase;  
    
class GeeksPhpunitTestCase extends TestCase  
{  
    public function testNegativeTestcaseForAssertequalIgnoringCase()  
    {  
        $expected = "Geek";  
        $actual= "geEks";   
        // assert function to test whether expected string 
        // is equal or not to actual ignoring case 
        $this->assertEqualsIgnoringCase( 
          $actual, 
          $expected,  
          "expected is not equal to actual ignoring case") ;  
    }  
}  
    
?> 

输出：

PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

F                                                         1 / 1 (100%)

Time:88 ms, Memory:10.00 MB

There was 1 failure:

1) GeeksPhpunitTestCase::testNegativeTestcaseForAssertequalIgnoringCase
expected is not equal to actual ignoring case
Failed asserting that two strings are equal.
--- Expected
+++ Actual
@@ @@
-'geEks'
+'Geek'

/home/lovely/Documents/php/test.php:17

FAILURES!
Tests:1, Assertions:1, Failures:1.

范例2：

<?php  
use PHPUnit\Framework\TestCase;  
    
class GeeksPhpunitTestCase extends TestCase  
{  
    public function testPositiveTestcaseForAssertequalIgnoringCase()  
    {  
        $expected = "Geeks";  
        $actual= "geEks";   
        // assert function to test whether expected 
        // is equal or not to actual ignoring case 
        $this->assertEqualsIgnoringCase( 
          $actual, 
          $expected,  
          "expected is not equal to actual ignoring case") ;  
    }  
}  
    
?> 

输出：

PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

.                                             1 / 1 (100%)

Time:91 ms, Memory:10.00 MB

OK (1 test, 1 assertion)

参考： https://phpunit.readthedocs.io/en/9.2/assertions.html#assertequalsignoringcase