How can I assert notification for a group of users? - laravel

Question

I went through notification testing and have to check the notification routing but I have problem when it comes to group assertions. For a single receiver, all tests passes with the default Notification::assertSentTo method. But things were different when it goes to group notification. I have tried to swap between 3 approaches;
This approach gave a warning stating that This test did not perform any assertions
$author->company->employees()->role('hrd')->each(function ($hrd) {
Notification::assertSentTo($hrd, LeaveRequestNotification::class);
});
Same warning, but with foreach
foreach($author->company->employees->role('hrd') as $hrd) {
Notification::assertSentTo($hrd, LeaveRequestNotification::class);
}
BadMethodCallException with test going red.
Notification::assertSentTo(
$author->company->employees()->role('hrd'),
LeaveRequestNotification::class,
);
Here is the complete error message occured by the 3rd approach
$ test --testsuite=Unit --filter=LeaveTest::testShouldSendRequestNotificationToHrdsWhenAuthorIsRegularEmployee --stop-on-failure
FAIL Tests\Unit\LeaveTest
⨯ should send request notification to hrds when author is regular employee
---
• Tests\Unit\LeaveTest > should send request notification to hrds when author is regular employee
BadMethodCallException
Call to undefined method Illuminate\Database\Eloquent\Relations\HasMany::getKey()
So, what is the proper way for doing this?

Answer 1

Just found the problem, it was lying here on the assignRole loop, I used the wrong subject
$leave->company->employees
instead of
$author->company->employees
The loop:
foreach ($leave->company->employees as $employee) {
if (!$employee->hasRole('employee')) {
$employee->assignRole('hrd');
}
}
dd($author->company->employees()->role('hrd')->count()); // prints 0
I changed the subject and use the 3rd approach, only this time, I add get() after the role definition. Works fine with no error. Thanks for #mrhn for reminding me about the existence of the loop subject.
foreach ($author->company->employees as $employee) {
if (!$employee->hasRole('employee')) {
$employee->assignRole('hrd');
}
}
LeaveRequest::dispatch($leave);
Notification::assertSentTo(
$author->company->employees()->role('hrd')->get(),
LeaveRequestNotification::class,
);