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PHP PHPUnit assertLessThan()用法及代碼示例

assertLessThan()函數是PHPUnit中的內置函數,用於斷言實際獲得的值是否小於期望值。如果實際值小於期望值,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:

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

參數:此函數接受上述和以下所述的三個參數:

  • $expected:此參數可以是代表期望數據的任何類型的數值。
  • $actual:此參數可以是代表實際數據的任何類型的數值。
  • $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。

以下示例說明了PHPUnit中的assertLessThan()函數:

範例1:



PHP

<?php  
use PHPUnit\Framework\TestCase;  
    
class GeeksPhpunitTestCase extends TestCase  
{  
    public function testNegativeTestcaseForassertLessThan() 
    {    $expected = 11;  
        $actual = 22; 
    
        // Assert function to test whether expected  
        // value is less than actual or not  
        $this->assertLessThan(  
            $expected,  
            $actual,  
            "actual value is not less than expected"
        );  
    }  
}  
    
?> 

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::testNegativeTestcaseForassertLessThan
actual value is not less than expected
Failed asserting that 22 is less than 11.

/home/lovely/Documents/php/test.php:16

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

範例2:

PHP

<?php  
use PHPUnit\Framework\TestCase;  
    
class GeeksPhpunitTestCase extends TestCase  
{  
    public function testPositiveTestcaseForassertLessThan() 
    {    $expected = 22;  
        $actual = 11; 
    
        // Assert function to test whether expected  
        // value is less than actual or not  
        $this->assertLessThan(  
            $expected,  
            $actual,  
            "actual value is not less than expected"
        );  
    }  
}  
    
?> 

輸出:

PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

.                                                  1 / 1 (100%)

Time:88 ms, Memory:10.00 MB

OK (1 test, 1 assertion)

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




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注:本文由純淨天空篩選整理自shubham_singh大神的英文原創作品 PHPUnit assertLessThan() Function。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。