PHP PHPUnit assertXmlStringEqualsXmlFile()用法及代碼示例

assertXmlStringEqualsXmlFile()函數是PHPUnit中的內置函數，用於斷言實際的XML文件Content是否等於預期的XML字符串。如果預期的XML字符串與實際的XML文件內容相同，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:

assertXmlStringEqualsXmlFile(string $expectedFile, 
string $actualFile[, string $message = ''])

參數：該函數接受三個參數，如上麵的語法所示。參數說明如下：

$expectedXmlString:此參數可以是代表期望的XML字符串的任何類型。
$actualXmlFile:此參數可以是代表實際XML文件路徑的任何類型。
$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assertXmlstringEqualsXmlFile()函數：

範例1：

PHP

<?php  
use PHPUnit\Framework\TestCase;  
    
class GeeksPhpunitTestCase extends TestCase  
{  
    public function testNegativeTestcaseForassertXmlStringEqualsXmlFile() 
    {  
        $expectedxmlString  =  '<foo><baza></baza></foo>';  
        $actualxmlFilePath    =  '/home/lovely/Documents/php/actual.xml'; 
        // Assert function to test whether given  
        // expected xml string is equal to actual xml file path 
        $this->assertXmlStringEqualsXmlFile( 
            $actualxmlFilePath, 
            $expectedxmlString, 
            "actual xml file path is equal to expected xml string"
        );  
    }  
}  
    
?>

輸出：

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::testPositiveTestcaseForassertXmlFileNotEqualsXmlFile
actual xml file path is equal to expected xml string
Failed asserting that two DOM documents are equal.
--- Expected
+++ Actual
@@ @@
<?xml version="1.0"?>
<foo>
-  <baz/>
+  <baza/>
</foo>

/home/lovely/Documents/php/test.php:16

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

範例2：

PHP

<?php  
use PHPUnit\Framework\TestCase;  
    
class GeeksPhpunitTestCase extends TestCase  
{  
    public function testPositiveTestcaseForassertXmlStringEqualsXmlFile() 
    {  
        $expectedxmlString  =  '<foo><baz></baz></foo>';  
        $actualxmlFilePath    =  '/home/lovely/Documents/php/actual.xml'; 
        // Assert function to test whether given  
        // expected xml string is equal to actual xml file path 
        $this->assertXmlStringEqualsXmlFile( 
            $actualxmlFilePath, 
            $expectedxmlString, 
            "actual xml file path is equal to expected xml string"
        );  
    }  
}  
    
?>

輸出：

PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

.                                                  1 / 1 (100%)

Time:87 ms, Memory:10.00 MB

OK (1 test, 1 assertion)

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

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