PHP PHPUnit assertFinite()用法及代碼示例

assertFinite()函數是PHPUnit中的內置函數，用於斷言實際獲得的值是否不是INF。如果實際值不是INF，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:

assertFinite(mixed $variable[, string $message = ''])

參數：此函數接受上述和以下描述的兩個參數：

• $actualvariable:此參數可以是代表實際值的任何類型的變量。
• $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assertFinite()函數：

範例1：

<?php  
use PHPUnit\Framework\TestCase;  
    
class GeeksPhpunitTestCase extends TestCase  
{  
    public function testNegativeForassertFinite() 
          
    {     
     $actualvariable = INF; 
        // Assert function to test whether actual  
        // variable Doesn't INF 
        $this->assertFinite( 
            $actualvariable,  
            "actual variable Doesn't INF"
        ); 
          
    } 
   
 }  
?> 

輸出：

PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

F                                                  1 / 1 (100%)

Time:87 ms, Memory:10.00 MB

There was 1 failure:

1) GeeksPhpunitTestCase::testPositiveForassertFinite
actual variable Doesn't INF
Failed asserting that INF is finite.

/home/lovely/Documents/php/test.php:15

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

範例2：

<?php  
use PHPUnit\Framework\TestCase;  
    
class GeeksPhpunitTestCase extends TestCase  
{  
    public function testPositiveForassertFinite() 
          
    {     
     $actualvariable = 108; 
        // Assert function to test whether actual  
        // variable Doesn't INF 
        $this->assertFinite( 
            $actualvariable,  
            "actual variable Doesn't INF"
        ); 
          
    } 
   
 }  
?> 

輸出：

PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

.                                                 1 / 1 (100%)

Time:90 ms, Memory:10.00 MB

OK (1 test, 1 assertion)