PHP PHPUnit assertClassHasAttribute()用法及代码示例

assertClassHasAttribute()函数是PHPUnit中的内置函数，用于断言具有特定属性的类。如果该类包含所提供的属性，则此断言将返回true;否则返回false;如果为true，则断言了测试用例的通过否则测试用例失败。

用法：

assertClassHasAttribute(string $attributeName, string $className[, string $message = ''])

参数：该函数接受三个参数，如以上语法所示。参数说明如下：

1. $attributeName：此参数表示要包含在类中的属性的名称。
2. $className：此参数是一个字符串，作为要搜索其属性的类名。
3. $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assertClassHasAttribute()函数：

程序1:：

<?php 
use PHPUnit\Framework\TestCase; 
  
// test class 
Class testClass{ 
    public $attribute = "test attribute"; 
} 
  
class GeeksPhpunitTestCase extends TestCase 
{ 
    public function testNegativeTestcaseForClassHasAttribute() 
    { 
        // assert function to test whether 'geeks' is a attribute of testclass 
        $this->assertClassHasAttribute('geeks', "testClass", "testClass doesn't has geeks as attribute") ; 
    } 
} 
  
?>

输出：

PHPUnit 6.5.5 by Sebastian Bergmann and contributors.

F                                                                   1 / 1 (100%)

Time:21 ms, Memory:4.00MB

There was 1 failure:

1) GeeksPhpunitTestCase::testNegativeTestcaseForClassHasAttribute
testClass doesn't has geeks as attribute
Failed asserting that class "testClass" has attribute "geeks".

/home/shivam/Documents/geeks/phpunit/abc.php:14

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

程序2:：

<?php 
use PHPUnit\Framework\TestCase; 
  
// test class 
Class testClass{ 
    public $geeks = "test attribute"; 
} 
  
class GeeksPhpunitTestCase extends TestCase 
{ 
    public function testPositiveTestcaseForClassHasAttribute() 
    { 
        // assert function to test whether 'geeks' is a attribute of testclass 
        $this->assertClassHasAttribute('geeks', "testClass", "testClass doesn't has geeks as attribute") ; 
    } 
} 
  
?> 
?>

输出：

PHPUnit 6.5.5 by Sebastian Bergmann and contributors.

.                                                                   1 / 1 (100%)

Time:21 ms, Memory:4.00MB

OK (1 test, 1 assertion)

注意：要使用phpunit运行测试用例，请遵循此处的步骤。