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PHP PHPUnit assertFileEquals()用法及代码示例


assertFileEquals()函数是PHPUnit中的内置函数,用于断言实际文件内容是否与预期文件的内容完全相同。如果预期文件内容与实际文件内容相同,则此断言将返回true,否则返回false。如果为真,则通过断言的测试用例,否则测试用例失败。

用法:

assertFileEquals(string $expected, 
      string $actual[, string $message = ''])

参数:此函数接受上述和以下所述的三个参数:

  • $expected:此参数是代表所需文件路径的字符串。
  • $actual:此参数是代表实际文件路径的字符串。
  • $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。

以下示例程序旨在说明PHPUnit中的assertFileEquals()函数:

范例1:



PHP

<?php  
use PHPUnit\Framework\TestCase;  
    
class GeeksPhpunitTestCase extends TestCase  
{  
    public function testNegativeTestcaseForassertFileEquals()  
    {  
        $expected = "/home/bittu/php";  
        $actual = "/home/bittu/Documents";  
    
        // Assert function to test whether expected  
        // file content is equal to actual file content or not  
        $this->assertFileEquals( 
            $expected,  
            $actual,  
"actual file content is not equals to expected file content"
        );  
    }  
}  
    
?> 

输出:

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::testNegativeTestcaseForassertFileEquals
actual file content is not equals to expected file content
Failed asserting that file "/home/bittu/php" exists.

/home/lovely/Documents/php/test.php:17

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

范例2:

PHP

<?php  
use PHPUnit\Framework\TestCase;  
    
class GeeksPhpunitTestCase extends TestCase  
{  
    public function testPositiveTestcaseForassertFileEquals()  
    {  
        $expected = "/home/bittu/Documents";  
        $actual = "/home/bittu/Documents";  
    
        // Assert file equal function to test whether expected  
        // file content is equal to actual file content or not  
        $this->assertFileEquals( 
            $expected,  
            $actual,  
"actual file content is not equals to expected file content"
        );  
    }  
}  
    
?> 

输出:

PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

.                                             1 / 1 (100%)

Time:89 ms, Memory:10.00 MB

OK (1 test, 3 assertions)

参考:https://phpunit.readthedocs.io/en/9.2/assertions.html#assertfileequals




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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 assertFileEquals() 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。