phpunit中的assertEquals和assertSame之间的区别? [英] Difference between assertEquals and assertSame in phpunit?

问题描述

PHPUnit包含一个assertEquals方法: https://phpunit.de/manual/current/en/appendixes.assertions.html#appendixes.assertions.assertEquals

PHPUnit contains an assertEquals method: https://phpunit.de/manual/current/en/appendixes.assertions.html#appendixes.assertions.assertEquals

它也有一个assertSame方法: https://phpunit.de/manual/current/en/appendixes.assertions.html#appendixes.assertions.assertSame

It also has an assertSame method: https://phpunit.de/manual/current/en/appendixes.assertions.html#appendixes.assertions.assertSame

乍一看，好像他们在做同样的事情.两者有什么区别?为什么都指定它们?

At first glance it looks like they do the same thing. What is the difference between the two? Why are they both specified?

推荐答案

我偶尔使用两者，但根据文档:

I use both sporadically, but according to the docs:

如果两个变量$expected和$actual具有不同的 type 和 value ，则报告由$message标识的错误."

Reports an error identified by $message if the two variables $expected and $actual do not have the same type and value."

并且如您在上面摘录下面的示例中所见，它们正在传递'2204'和2204，它们将使用assertSame失败，因为一个基本上是string而另一个是int,:

And as you can see in the example below the above excerpt, they are passing '2204' and 2204, which will fail using assertSame because one is a string and one is an int, basically:

'2204' !== 2204
assertSame('2204', 2204) // this test fails

assertEquals

如果两个变量$ expected和$ actual不相等，则报告由$ message标识的错误."

"Reports an error identified by $message if the two variables $expected and $actual are not equal."

assertEquals似乎没有考虑数据类型，因此使用上面的2204示例:

assertEquals does not appear to take datatype into consideration so using the above example of 2204:

'2204' == 2204
assertEquals('2204', 2204) // this test passes

我只是针对上述示例进行了一些单元测试，实际上它们导致了记录的行为.

I just ran some unit tests against the above examples, and indeed they resulted in documented behavior.

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