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PHP PHPUnit assertIsScalar()用法及代码示例


assertIsScalar()函数是PHPUnit中的内置函数,用于断言标量变量是那些包含整数,浮点数,字符串或布尔值的变量。此函数不将null视为标量。如果实际值为标量,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:

assertIsScalar($actual[, $message = ''])

参数:此函数接受下面提到和描述的两个参数:

  • $actual:此参数可以是代表实际数据的任何类型的字符串或变量。
  • $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。

以下示例说明了PHPUnit中的assertIsScalar()函数:

范例1:



PHP

<?php  
use PHPUnit\Framework\TestCase;  
    
class GeeksPhpunitTestCase extends TestCase  
{  
    public function testNegativeForassertIsScalar() 
    {    
     $actualvalue = Null; 
        // Assert function to test whether actual  
        // value is a scalar or not 
        $this->assertIsScalar( 
          
            $actualvalue,  
            "actual value is a scalar or not"
        ); 
          
    } 
   
 }  
?> 

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::testNegativeForassertIsScalar
actual value is a scalar or not
Failed asserting that null is of type "scalar".

/home/lovely/Documents/php/test.php:14

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

范例2:

PHP

<?php  
use PHPUnit\Framework\TestCase;  
    
class GeeksPhpunitTestCase extends TestCase  
{  
    public function testPositiveForassertIsScalar() 
    {    
     $actualvalue = "Null"; 
        // Assert function to test whether actual  
        // value is a any type of string or not 
        $this->assertIsScalar( 
          
            $actualvalue,  
            "actual value is a scalar or not"
        ); 
          
    } 
  
  
     public function testNegativeForassertIsScalar() 
    {    
     $actualvalue = 420; 
            // Assert function to test whether actual  
        // value is a integer or not 
        $this->assertIsScalar( 
          
            $actualvalue,  
            "actual value is a scalar or not"
        ); 
          
    } 
   
 }  
?> 

输出:

PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

..                                                2 / 2 (100%)

Time:90 ms, Memory:10.00 MB

OK (2 tests, 2 assertions)

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




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注:本文由纯净天空筛选整理自shubham_singh大神的英文原创作品 PHPUnit assertIsScalar() Function。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。