PHP PHPUnit assertFileIsWritable()用法及代碼示例

assertFileIsWritable()函數是PHPUnit中的內置函數，用於斷言指定的文件是否為可寫文件。如果給定的文件名存在並且可寫，則此斷言將返回true。如果為真，則通過斷言的測試用例，否則測試用例失敗。

用法:

assertFileIsWritable(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assertFileIsWritable()函數：

範例1：

PHP

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

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::testNegativeTestcaseForassertFileIsWritable
filename exists and writable
Failed asserting that file "/home/lovely/Documents/phptest" 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 testPositiveTestcaseForassertFileIsWritable()  
    {  
        $filename = "/home/lovely/Documents";  
    
        // Assert function to test whether given  
        // file name exists and readable  
        $this->assertFileIsWritable(  
            $filename,  
            "filename exists and writable"
        );  
    }  
}  
    
?>

輸出：

PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

.                                       1 / 1 (100%)

Time:94 ms, Memory:10.00 MB

OK (1 test, 2 assertions)

相關用法

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 assertFileIsWritable() 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。