PHPUnit assertXmlFileEqualsXmlFile() Function

The assertXmlFileEqualsXmlFile() function is a builtin function in PHPUnit and is used to assert whether the actual XML file Content is equals to expected XML file content or not. This assertion will return true in the case if the expected XML file content is the same as the actual XML file content else returns false. In case of true the asserted test case got passed else test case got failed.

Syntax:

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

Parameters: This function accepts three parameters as mentioned above and described below:

  •    $expectedFile: This parameter is of any type which represents the expected XML File Path.
  •    $actualFile: This parameter is of any type which represents the actual XML File Path.
  •    $message: This parameter takes a string value. When the test case got failed this string message got displayed as an error message.

Below examples illustrate the assertXmlFileEqualsXmlFile() function in PHPUnit:

Example 1:



PHP

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<?php 
use PHPUnit\Framework\TestCase; 
    
class GeeksPhpunitTestCase extends TestCase 
    public function testNegativeTestcaseForassertXmlFileEqualsXmlFile()
    
        $actualFile '/home/lovely/Documents/php/actual.xml';
        $expectedFile     = '/home/lovely/Documents/php/expected.xml'
        
        // Assert function to test whether given 
        // expected xml file is equal to actual xml file or not
        $this->assertXmlFileEqualsXmlFile(
            $actualFile,
            $expectedFile
            "actual xml file equal to expected xml file or not"
        ); 
    
    
?> 

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Output:

PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

F                                                             1 / 1 (100%)

Time: 88 ms, Memory: 10.00 MB

There was 1 failure:

1) GeeksPhpunitTestCase::testNegativeTestcaseForassertXmlFileEqualsXmlFile
actual xml file equal to expected xml file or not
Failed asserting that two DOM documents are equal.
--- Expected
+++ Actual
@@ @@
    <author>Gambardella, Matthew</author>
    <title>XML Developer's Guide</title>
    <genre>Computer</genre>
-    <price>444.95</price>
+    <price>44.95</price>
    <publish_date>2000-10-01</publish_date>
    <description>An in-depth look at creating applications
      with XML.</description>

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

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


Example 2:

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<?php 
use PHPUnit\Framework\TestCase; 
    
class GeeksPhpunitTestCase extends TestCase 
    public function testPositiveTestcaseForassertXmlFileEqualsXmlFile()
    
        $actualFile '/home/lovely/Documents/php/actual.xml';
        $expectedFile    = '/home/lovely/Documents/php/expected.xml'
        // Assert function to test whether given 
        // expected xml file is equal to actual xml file or not
        $this->assertXmlFileEqualsXmlFile(
            $actualFile,
            $expectedFile
            "actual xml file equal to expected xml file or not"
        ); 
    
    
?> 

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Example:

PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

.                                                 1 / 1 (100%)

Time: 87 ms, Memory: 10.00 MB

OK (1 test, 1 assertion)

Reference:https://phpunit.readthedocs.io/en/9.2/assertions.html#assertxmlfileequalsxmlfile




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