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PHP PHPUnit assertIsResource()用法及代码示例


assertIsResource()函数是PHPUnit中的内置函数,用于断言给定变量是否为Resource。如果给定变量为Resource,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:

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

参数:此函数接受上面和下面描述的两个参数:

  • $variable:此参数可以是代表实际数据的任何类型的变量。
  • $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assertIsResource()函数:

范例1:



PHP

<?php  
use PHPUnit\Framework\TestCase;  
    
class GeeksPhpunitTestCase extends TestCase  
{  
    public function testNegativeTestcaseForassertIsResource() 
    {  
       $variable =  555; 
        // Assert function to test whether assert 
        //  variable is resource or not 
        $this->assertIsResource( 
            $variable, 
            "assert variable is resource or not"
        ); 
          
    } 
   
 }  
?> 

输出:

PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

F                                                   1 / 1 (100%)

Time:89 ms, Memory:10.00 MB

There was 1 failure:

1) GeeksPhpunitTestCase::testNegativeTestcaseForassertIsResource
assert variable is resource or not
Failed asserting that 555 is of type "resource".

/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 testPositiveTestcaseForassertIsResource() 
    {  
       $variable =  fopen('http://www.google.com','r'); 
        // Assert function to test whether assert 
        //  variable is Iterable 
        $this->assertIsResource( 
            $variable, 
            "assert variable is Iterable or not"
        ); 
       fclose($variable); 
  
    } 
   
 }  
?> 

输出:

PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

.                                                 1 / 1 (100%)

Time:613 ms, Memory:10.00 MB

OK (1 test, 1 assertion)

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




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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 assertIsResource() 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。