Question

对于PHP应用程序I m Developing,我需要阅读目前对SHA的轮值修订,当然,我可以通过使用壳体/外壳或背标语来实施该轮指挥线客户。

我显然把这一呼吁变成了自己的一种方法,以便我能够轻易地孤立起来,为我的单位测试的其余部分进行模拟。因此,我的班子看着这样的情况:

class Task_Bundle
{

    public function execute()
    {
        // Do things
        $revision = $this->git_sha();
        // Do more things
    }

    protected function git_sha()
    {
        return `git rev-parse --short HEAD`;
    }
}

Of course, although I can test most of the class by mocking git_sha, I m struggling to see how to test the actual git_sha() method because I don t see a way to create a known state for it. I don t think there s any real value in a unit test that also calls git rev-parse to compare the results? I was wondering about at least asserting that the command had been run, but I can t see any way to get a history of shell commands executed by PHP - even if I specify that PHP should use BASH rather than SH the history list comes up empty, I presume because the separate backticks executions are separate terminal sessions.

我很想知道,我会如何检验,或者说,在将来维持这种评估时,是否只是让这种方法未经测试和加以谨慎?

Answer 1

尽管你接受了答案,但请允许我谈谈“单位测试”应当如何发挥作用,因为即使所展示的解决办法确实奏效,而且确实是空洞的,它还是有一些倒退。

首先,你们不想实际执行你的指挥,因为这将测试外部软件。从此刻起,你依靠外部力量无法控制(如果我想要用手法测试你的软件,情况如何? 我是否必须排入黑板或任何 g。你真的想要做的是,指挥线指挥是否正确,执行得很好。

www.un.org/spanish/ecosoc 正如我以前所反对的那样,这里是我所说的: 我设立了一间执行炮弹的班子。在我想要与伤者互动的任何地方,我都投下了这门课堂并使用它。因此,为了测试,我可以 mo弄这个类别,看看是否执行正确的方法,是否确定了正确的参数。

这有许多好处:

I have one point of interacting with the shell. If anything changes in the future or if I have the need to do anything before executing the command, I can add the behaviour to the class. The PHP function is encapsulated nicely.
It works on every PC, even if the shell_exec command does not work for any reason. The tests get executed on every pc (development machines, testserver, integration server) without the need to worry about external dependencies.

当然,为了验证您的软件作为一个整体运行,你必须进行不模拟的一体化测试。但这完全不同。考试应保证你的班级(或方法)能做所需的工作。有时,这并不明确,因为你可能决定在某些地方使用真正的类别,因为模拟会导致大量间接费用。但是,就Im而言,如果它依赖外部图书馆/软件,可能由于某种原因无法安装或无法运行,它就不再以任何手段进行单位测试。

Answer 2

至少,你可以做一些事情,例如检查重新布局,以便与......(abcdef0-9){7}美元匹配。

Answer 3

如果你真心想的话,你可以写一个 du条码/code>,并将它的位置留给你的环境<条码>。它是否做了任何必要的鉴定,然后产生与实际结果相符的产出。如果你想要的话,你甚至可以想象会把它推向真正的<代码>git,但你却不能保证结果。

You d have to be careful, though....You d want do just enough so that the class can be fooled into thinking it s really git, but if you make it behave too much like the real thing does, that amounts to writing your own half-assed version of Git.

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