add model assertion that two models are related

[Gummibeer]

solves #1

\Astrotomic\PhpunitAssertions\Laravel\ModelAssertions::assertRelated($post, $comment, 'comments');
\Astrotomic\PhpunitAssertions\Laravel\ModelAssertions::assertRelationship(
    $post, 
    \App\Models\Comment::class, 
    'comments', 
    \Illuminate\Database\Eloquent\Relations\HasMany::class
);

[Gummibeer]

@aidan-casey sorry for the long delay.
I've updated the assertion to be able to handle all of our use-cases.
Do you want to check it if it's now doing what you wanted?^^

[aidan-casey]

@aidan-casey sorry for the long delay.
I've updated the assertion to be able to handle all of our use-cases.
Do you want to check it if it's now doing what you wanted?^^

Likewise, sorry for the long delay! What you have here is exactly the functionality I was thinking of. I think it fits the use case well.

Thanks for your work on this!

[Gummibeer]

https://github.com/Astrotomic/phpunit-assertions/releases/tag/0.3.0