Table, wasRecentlyCreated and model keys make test fail

If I create resources from my test case and then compare it from what I get in the controller it fails because:

1. Somehow all the objects in the collection inside the test have the table attribute as null.

2. The wasRecentlyCreated attribute is set to true while in the controller it's false.

3. The primary key and foreign key are set to integer in the test case while in the controller they are strings.

What have I try thus far to fix this:

1 ) I don't know what's going on here. I'm using the default configuration that ships with Laravel 7 in the phpunit.xml file, which is this:

<php>
        <server name="APP_ENV" value="testing"/>
        <server name="BCRYPT_ROUNDS" value="4"/>
        <server name="CACHE_DRIVER" value="array"/>
        <server name="DB_CONNECTION" value="sqlite"/>
        <server name="DB_DATABASE" value=":memory:"/>
        <server name="MAIL_MAILER" value="array"/>
        <server name="QUEUE_CONNECTION" value="sync"/>
        <server name="SESSION_DRIVER" value="array"/>
    </php>

2 ) I tried using the fresh() method in the collection right after I create them in the test case.

/** @test */
    public function a_user_can_see_their_list_of_boards()
    {
        $this->withoutExceptionHandling();

        $user = factory(User::class)->create();
        $boards = factory(Board::class, 10)->create(['user_id' => $user->id]);

        $boards->fresh();

        $this->actingAs($user)
            ->get(route('boards.index'))
            ->assertViewHas('boards', $boards);
    }

3 ) I tried casting the attributes to integer in the Board model.

protected $casts = [
        'id' => 'integer',
        'user_id' => 'integer'
    ];

Couldn't fix any of the problems above. Any suggestion?