Laravel validation testing using data provider

I have laravel rules validation and i want test it all give rules with one method and dataProvider using phpunit

For example i have rules required|string|max:255 i want test required string andmax:255` rules without writing test method separately

But i only can do it for required rules only i want test the second rules like digit_between for identity field but first_name field doesnt have digit_between but is string

1. here my example rules code

    {
     return [
      'identity_number' => 'required|digits_between:1,255|unique:borrowers',
      'first_name'      => 'required|string|max:255',
      'last_name'       => 'required|string|max:255',
      'birthdate'       => 'required|date',
     ];
    }

2.testing code :

    /**
     * Test store validation.
     *
     * @return void
     *
     * @group user
     * @dataProvider requiredStoreValidationProvider
     */
    public function testStoreValidation($formInput, $formInputValue)
    {
        $response = $this->actingAs($this->user)
            ->post(route('borrower.store'), [
                $formInput => $formInputValue,
            ]);

        $response->assertSessionHasErrorsIn('validation', $formInput);
    }

    /**
     * Required store data validation provider.
     *
     * @return string[][]
     */
    public function requiredStoreValidationProvider()
    {
        return [
            ['identity_number', ''],
            ['first_name', ''],
            ['last_name', ''],
            ['birthdate', ''],
        ];
    }

Answer

Each index is a one test scenario, So the first scenario is to test the required validation, the second scenario would be digits_between:1,255, We set 256 for identity_number, because you have defined a range number, and the rest as you can see.

/**
     * Required store data validation provider.
     *
     * @return string[][]
     */
    public function requiredStoreValidationProvider()
    {
        return [
            ['identity_number', ''],
            ['identity_number', 256],
            ['first_name', ''],
            ['first_name', 123],
            ['first_name', str_random(256)],
            ['last_name', ''],
            ['last_name', 123],
            ['last_name', str_random(256)],
            ['birthdate', ''],
        ];
    }