PHP PHPUnit assertEqualsIgnoringCase()用法及代碼示例

assertEqualsIgnoringCase()函數是PHPUnit中的內置函數，用於忽略預期字符串string-case來檢查預期字符串是否等於實際字符串。如果實際字符串等於期望的字符串(忽略大小寫)，則此斷言將返回true，否則返回false。如果為真，則通過斷言的測試用例，否則測試用例失敗。

用法:

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

參數：該函數接受三個參數，如上麵的語法所示。參數說明如下：

• $expected:此參數是代表期望數據的字符串。
• $actual：此參數是代表實際數據的字符串。
• $message:此參數采用字符串值。當測試用例失敗時，此字符串消息將顯示為錯誤消息。

以下示例程序旨在說明assertEqualsIgnoringCase()函數：

範例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") ;  
    }  
}  
    
?> 

輸出：

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.

範例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") ;  
    }  
}  
    
?> 

輸出：

PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

.                                             1 / 1 (100%)

Time:91 ms, Memory:10.00 MB

OK (1 test, 1 assertion)

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