Array subset works with flat arrays;

[askovron]

Add possibility to check flat arrays within assertArrayContains

Fixes #2069

[stickler-ci]

Inline control structures are not allowed

[sebastianbergmann]

Thank you for your contribution. I appreciate the time you invested in preparing this pull request. However, I have decided not to merge it because I do not understand the issue (see #2069 (comment)) you're trying to solve here.

[askovron]

@sebastianbergmann

(1) The issue was (and is) that the arraySubset assertion passes only when the subset is located in the very beginning of the array.

Array = ['a', 'b', 'c']
Valid subset = ['a', 'b']
Invalid subset = ['b', 'c']

(2) The second issue is that the subset must be in the same order in both suubset and the original array.

Array = ['a', 'b', 'c']
Valid subset = ['a', 'b']
Invalid subset = ['b', 'a']

FYI. During tests had been running on this branch there were some errors not related to this feature.

[BonBonSlick]

I am faced issues with auto indexed arrays today, what was solution?

"phpunit/phpunit": "^7.1",

  $content  = \json_decode($response->getContent(), true);
  static::assertArraySubset(
    [
      [
        'email' => 'member@email.com',

Fails sometimes, because array with email has different int index.
Nothing in docs about that and I dont see any more asserts for this case, no comments in this thread with solution assert axmaple.

https://phpunit.de/manual/6.5/en/appendixes.assertions.html#appendixes.assertions.assertArraySubset