FilamentF
Filament•2y ago
JJSanders

Testing a form with live events

I'm trying to test a form that when I select a brand it should prefill the related suppliers in the next select. In my form I user the ->live() method to make the fields dependent on each other.
In my test i have:

    livewire(CreateOrder::class)
        ->assertFormFieldExists('brand_id')
        ->fillForm([
            'brand_id' => $brand->id,
        ])->assertFormSet(['supplier_id' => $suppliers->pluck('id')->toArray()]);

However this doesn't work, I get the error:

Failed asserting that null matches expected 1.

at vendor/livewire/livewire/src/Features/SupportTesting/MakesAssertions.php:93
89▕
90▕ if (! is_string($value) && is_callable($value)) {
91▕ PHPUnit::assertTrue($value($actual));
92▕ } else {
➜ 93▕ $strict ? PHPUnit::assertSame($value, $actual) : PHPUnit::assertEquals($value, $actual);
94▕ }
95▕
96▕ return $this;
97▕ }

I have tried to log what the value is of the suppliers. And I have confirmed that the options are empty. How Can I solve this, or where can I read about testing these dependent fields. Thanks.
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