PHP PHPUnit assertDirectoryIsReadable()用法及代碼示例

assertDirectoryIsReadable()函數是PHPUnit中的內置函數，用於斷言指定的目錄是目錄還是可讀目錄。如果給定目錄路徑存在並且可讀，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:

assertDirectoryIsReadable( integer $directory, string $message = '' )

參數：該函數接受兩個參數，如上麵的語法所示。參數說明如下：

• $directory:此參數是一個字符串，它表示目錄路徑。
• $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。

以下程序說明了PHPUnit中的assertDirectoryIsReadable()函數：

程序1:

<?php 
use PHPUnit\Framework\TestCase; 
  
class GeeksPhpunitTestCase extends TestCase 
{ 
    public function testNegativeTestcaseForAssertDirectoryIsReadable() 
    { 
        $directoryPath = "/home/shivam/Documents/phpunit/notreadable"; 
  
        // Assert function to test whether the given 
        // directory path either exists and readable 
        $this->assertDirectoryIsReadable( 
            $directoryPath, 
            "directoryPath  exists and readable"
        ); 
    } 
} 
  
?>

輸出：

PHPUnit 8.2.5 by Sebastian Bergmann and contributors.

F                                                                   1 / 1 (100%)

Time:89 ms, Memory:10.00 MB

There was 1 failure:

1) GeeksPhpunitTestCase::testNegativeTestcaseForAssertDirectoryIsReadable
directoryPath  exists and readable
Failed asserting that directory "/home/shivam/Documents/geeks/pgp" exists.

/home/shivam/Documents/geeks/phpunit/abc.php:13

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

程序2:

<?php 
use PHPUnit\Framework\TestCase; 
  
class GeeksPhpunitTestCase extends TestCase 
{ 
    public function testPositiveTestcaseForAssertDirectoryIsReadable() 
    { 
        $directoryPath = "/home/shivam/Documents/geeks"; 
  
        // Assert function to test whether given 
        // directory path exists and readable 
        $this->assertDirectoryIsReadable( 
            $directoryPath, 
            "directoryPath exists and readable"
        ); 
    } 
} 
  
?>

輸出：

PHPUnit 8.2.5 by Sebastian Bergmann and contributors.

.                                                                   1 / 1 (100%)

Time:67 ms, Memory:10.00 MB

OK (1 test, 1 assertion)

注意：要使用phpunit運行測試用例，請遵循此處的步驟。另外，phpunit 7及更高版本支持assertDirectoryIsReadable()。