PHP PHPUnit assertFileIsWritable()用法及代码示例

assertFileIsWritable()函数是PHPUnit中的内置函数，用于断言指定的文件是否为可写文件。如果给定的文件名存在并且可写，则此断言将返回true。如果为真，则通过断言的测试用例，否则测试用例失败。

用法:

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

参数：此函数接受上述和以下描述的两个参数：

$filename:此参数是表示文件名的字符串。
$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assertFileIsWritable()函数：

范例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"
        );  
    }  
}  
    
?>

输出：

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.

范例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"
        );  
    }  
}  
    
?>

输出：

PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

.                                       1 / 1 (100%)

Time:94 ms, Memory:10.00 MB

OK (1 test, 2 assertions)

相关用法

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 assertFileIsWritable() 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。