PHP测试，用于过程代码 [英] PHP Testing, for Procedural Code

问题描述

有什么方法可以测试程序代码?我一直在研究PHPUnit，这似乎是创建自动化测试的好方法.但是，它似乎面向面向对象的代码，过程代码是否还有其他选择?

Is there any way of testing procedural code? I have been looking at PHPUnit which seems like a great way of creating automated tests. However, it seems to be geared towards object oriented code, are there any alternatives for procedural code?

还是应该在尝试测试网站之前将网站转换为面向对象?这可能要花一些时间，因为我没有太多时间可以浪费.

Or should I convert the website to object oriented before attempting to test the website? This may take a while which is a bit of a problem as I don't have a lot of time to waste.

谢谢

丹尼尔.

推荐答案

您可以使用PHPUnit测试过程代码.单元测试与面向对象的编程无关. 他们测试代码单元.在OO中，代码单位是一种方法.在过程性PHP中，我想这是一个完整的脚本(文件).

You can test procedural code with PHPUnit. Unit tests are not tied to object-oriented programming. They test units of code. In OO, a unit of code is a method. In procedural PHP, I guess it's a whole script (file).

尽管OO代码更易于维护和测试，但这并不意味着无法测试过程PHP.

While OO code is easier to maintain and to test, that doesn't mean procedural PHP cannot be tested.

每个示例，您都有以下脚本:

Per example, you have this script:

simple_add.php

$arg1 = $_GET['arg1'];
$arg2 = $_GET['arg2'];
$return = (int)$arg1 + (int)$arg2;
echo $return;

您可以像这样测试它:

class testSimple_add extends PHPUnit_Framework_TestCase {

    private function _execute(array $params = array()) {
        $_GET = $params;
        ob_start();
        include 'simple_add.php';
        return ob_get_clean();
    }

    public function testSomething() {
        $args = array('arg1'=>30, 'arg2'=>12);
        $this->assertEquals(42, $this->_execute($args)); // passes

        $args = array('arg1'=>-30, 'arg2'=>40);
        $this->assertEquals(10, $this->_execute($args)); // passes

        $args = array('arg1'=>-30);
        $this->assertEquals(10, $this->_execute($args)); // fails
    }

}

在此示例中，我声明了一个_execute方法，该方法接受GET参数数组，捕获输出并返回它，而不是一遍又一遍地进行捕获.然后，我使用PHPUnit的常规断言方法比较输出.

For this example, I've declared an _execute method that accepts an array of GET parameters, capture the output and return it, instead of including and capturing over and over. I then compare the output using the regular assertions methods from PHPUnit.

当然，第三个断言将失败(不过取决于error_reporting)，因为经过测试的脚本将给出未定义索引错误.

Of course, the third assertion will fail (depends on error_reporting though), because the tested script will give an Undefined index error.

当然，在测试时，应将error_reporting放到E_ALL | E_STRICT.

Of course, when testing, you should put error_reporting to E_ALL | E_STRICT.

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