phpunit 无法断言两个数组相等，但显示没有区别 [英] phpunit fails asserting that two arrays are equal, but shows no difference

问题描述

这是 phpunit 所说的:

Here is what phpunit says:

1) AsgardEntityTestsEntityTest::testToArray
Failed asserting that two arrays are equal.
--- Expected
+++ Actual
@@ @@
 Array (
     'id' => null
     'title' => 'Test Title'
     'content' => 'Test Content'
     'published' => 2015-03-04T11:19:50+0000
     'comments' => Array (
         0 => Array (
             'id' => null
             'content' => 'foo'
             'published' => 2015-03-04T11:19:50+0000
             'another_property' => null
             'news' => null
         )
         1 => Array (
             'id' => null
             'content' => 'bar'
             'published' => 2015-03-04T11:19:50+0000
             'another_property' => null
             'news' => null
         )
         2 => Array (
             'id' => null
             'content' => 'baz'
             'published' => 2015-03-04T11:19:50+0000
             'another_property' => null
             'news' => null
         )
     )
     'another_property' => null
 )

https://travis-ci.org/asgardphp/asgard/jobs/53029084

预期"和实际"之间没有区别.测试通常会通过，但有时会失败.

There is no difference between "expected" and "actual". The tests usually pass, but sometimes would fail on this.

推荐答案

发现问题.元素的顺序不同.虽然输出没有显示，但有点烦人.

Found the issue. Elements were not in the same order. A bit annoying though that the output doesn't show it.

我已将 assertEquals 替换为:

I have replaced assertEquals with:

$this->assertTrue($this->similar_arrays($arr1, $arr2));

protected function similar_arrays($a, $b) {
    if(is_array($a) && is_array($b)) {
        if(count(array_diff(array_keys($a), array_keys($b))) > 0)
            return false;

        foreach($a as $k => $v) {
            if(!$this->similar_arrays($v, $b[$k]))
                return false;
        }

        return true;
    }
    else
        return $a === $b;
}

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