Laravel phpunit assertViewHas与预期的测试数据不匹配

Question

I am writing a test for my search method, but had currently a assertSee and want to change it for a assertViewHas for a better test result. But the data that I get from the search method does not want to match the data I expect.

This is where I set $user:

protected $user;

public function setUp()
{
    parent::setUp();

    $this->seed();

    $this->user = factory(User::class)->create(['role_id' => 3]);
}

This is where I'm making the assertion:

$response = $this->followingRedirects()->actingAs($this->user)->get('/manage/users/search?choices=username&search='.$this->user->username.'');

$response->assertViewIs('manage.users');
$response->assertSuccessful();
$response->assertViewHas('users', $this->user);

And this is the data it will return from the controller:

$result = User::where('username', 'LIKE', '%'. $request->get('search') .'%')
                ->orderBy('username', 'asc')->paginate(20);
return view('manage.users')->with('users', $result);

What am I doing wrong to get the matching data?

Answer 1

You are trying to assert that $this->user matches $users from your controller. But paginate() returns a LengthAwarePaginator instance and $this->user is an instance of User, so they won't match.

If you want to assert that a given user is contained in the $users variable passed to the view, you could pass a closure to assertViewHas() with the necessary logic.

Maybe something like this:

$response->assertViewHas('users', function($users) {
    return $users->contains($this->user);
});

You can view how assertViewHas() works on the Laravel source code.