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PHP PHPUnit assertFileIsReadable()用法及代碼示例

assertFileIsReadable()函數是PHPUnit中的內置函數,用於斷言指定的assertfile是否是可讀取的文件名。如果給定的文件名存在且可讀,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:

assertFileIsReadable(string $filename[, string $message = ''])

參數:此函數接受上述和以下描述的兩個參數:

  • $filename:此參數是表示文件名的字符串。
  • $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。

以下示例說明了PHPUnit中的assertFileIsReadable()函數:

範例1:



PHP

<?php  
use PHPUnit\Framework\TestCase;  
    
class GeeksPhpunitTestCase extends TestCase  
{  
    public function testNegativeTestcaseForAssertFileIsReadable()  
    {  
        $filename = "/home/lovely/Documents/phpunit";  
    
        // Assert function to test whether the given  
        // file name either exists and readable  
        $this->assertFileIsReadable(  
            $filename,  
            "File name  exists and readable"
        );  
    }  
}  
    
?> 

輸出:

PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

F                                                       1 / 1 (100%)

Time:90 ms, Memory:10.00 MB

There was 1 failure:

1) GeeksPhpunitTestCase::testNegativeTestcaseForAssertFileIsReadable
File name  exists and readable
Failed asserting that file "/home/lovely/Documents/phpunit" exists.

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

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

範例2:

PHP

<?php  
use PHPUnit\Framework\TestCase;  
    
class GeeksPhpunitTestCase extends TestCase  
{  
    public function testPositiveTestcaseForAssertFileIsReadable()  
    {  
        $filename = "/home/lovely/Documents/php";  
    
        // Assert function to test whether the given  
        // file name either exists and readable  
        $this->assertFileIsReadable(  
            $filename,  
            "File name  exists and readable"
        );  
    }  
}  
    
?>

輸出:

 PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

.                                                 1 / 1 (100%)

Time:87 ms, Memory:10.00 MB

OK (1 test, 2 assertions)

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




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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 assertFileIsReadable() 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。