Livewire Unit Test Flash Data Assertion

Hi.

There's something with unit testing flash data that I'm not understanding.

Livewire component has this code; session()->flash('errorMessage', 'blah blah')

Unit test has this code;

$response = Livewire::test(Login::class)
            ->set('email', '[email protected]')
            ->set('password', 'wrongPassword')
            ->call('submit')
//            ->assertSessionHas('_flash.new.0');
            ->assertSessionHasInput('errorMessage', 'blah blah');

The assertSessionHas() call works, but only when i drill down through the array (like in the commented example above).

assertSessionHasInput('errorMessage) or assertSessionHas('errorMessage') does not work.

The result of $response->dumpSession(); is;

array:1 [
  "_flash" => array:2 [
    "new" => array:1 [
      0 => "errorMessage"
    ]
    "old" => []
  ]
]

I'm referencing the docs here; https://laravel.com/docs/8.x/http-tests#assert-session-has-input

Please help me understand why checking for the errorMessage key is failing.

docTRIN

3 years ago

Level 1

I am having the same issue. I have a livewire action that sends flash message to the session

session()->flash('success', 'Email sent');

The message works in browser testing, but non in my PHPUnit testing. The result of $response->dumpSession(); is;

array:1 [
  "_flash" => array:2 [
    "new" => array:1 [
      0 => "success"
    ]
    "old" => []
  ]

1 like

pgferro

3 years ago

Level 3

bumping to check if somebody came up with a solution / workaround ..

1 like

falconsmilie

3 years ago

Level 3

@pgferro the workaround is in my initial comment, but it's pretty ugly

zoker

1 year ago

Level 15

If you are using PEST, you can extend expect (in pest.php) with:

expect()->extend('assertFlashMessageHas', function ($key) {
    return $this->assertSessionHas('_flash', function ($session) use ($key) {
        return in_array($key, $session['new']);
    });
});

and using:

$response = Livewire::test(\App\Livewire\SomeClass::class)
        ->call('method');

expect($response)->assertFlashMessageHas('forgot-password-success');

It may not be as pretty, but it works.

2 likes

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