How can i created unit testing to Graphql application with Laravel? - php

I created an application with Laravel using Graphql. But I dont how to create my unit tests. Only do it simple request with PHPUnit or have other better way to do it?
Example Query Graphql in Laravel:
class ClientQuery extends Query
{
protected $attributes = [
'name' => 'ClientQuery',
'description' => 'A query'
];
public function type()
{
return GraphQL::type("Client");
}
public function args()
{
return [
'id' => [
'type' => Type::nonNull(Type::int()),
],
];
}
public function resolve($root, $args, $context, ResolveInfo $info)
{
return Client::find($args['id']);
}
}

I'm currently using GraphQL like you.
Because I've used GraphQL files to describe my data model, I have only my resolver in PHP (like you no?).
I think you can create Unit test but it is not necessary because is the role of data model to avoid errors of Type. But you can make it to perform a better product/platform yes.
In this way, Integration tests are very important, to test resolvers.
I'm currently using API call to test resolvers, but it can change because I'm not an expert and I don't think it's the better way but for now that make the job.

Related

Using separate data provider class with PHPUnit and attributes

I would like to separate Tests and Data Providers. Using PHP 8 attributes, I cannot get the following test to run when referencing an external Data Provider:
#[Test]
#[DataProviderExternal(RouterDataProvider::class, 'registerGetRouteData')]
public function itRegistersGetRoute(Route $route, array $expectedResult)
{
$this->router->get($route);
$this->assertEquals($expectedResult, $this->router->getRoutes());
}
My data provider class:
class RouterDataProvider
{
public static function registerGetRouteData(): array
{
return [
$route = new Route('/', ['IndexController', 'index']),
[
'GET' => [
'/' => $route,
],
'POST' => []
]
];
}
}
How could I get this test to run with the desired provider method?
By running PHPUnit with the following flags, I was able to see exactly what my issue was:
./vendor/bin/phpunit --display-deprecations --display-warnings --diplay-errors --display-notices
The data set was invalid. Changing the return to yield and updating the return type for the registerGetRouteData method from array to \Generator resolved this.
I was running phpunit with the --testdox flag, so I'm not sure if this is what stopped me seeing any errors initially and assume the test was being skipped.

PHPUnit how to write a Laravel Nova Observer test

I would like to write a test for my CommentObserver. This observer is only registered in the NovaServiceProvider but not the AppServiceProvider. This means I cannot test my observer by using my own Controllers.
In my eyes I have 3 ways to test my observer:
Either performing a feature test by sending a post request to the Nova API
Mocking the observer by calling the function in the observer to check if the function perfoms as desired
Trying to register my observer on the fly in the AppServiceProvider, performing a request and deregistering the observer in the AppServiceProvider again.
I tried to find a solution for any of these 3 ways to test my observer but unfortunately I faild with any of them.
Problems:
For way 1 I always get a validation error and Nova tells me that my input is invalid.
For way 2 I fail at mocking the observer function
For way 3 I didn't find any solution on how to register and deregister the oberserver on the fly at the AppServiceProvider
Do you guys have idea and solition on how I can test my CommentObserver (which is as written above only registered in my NovaServiceProvider).
Update:
So, here is the code of my observer. I need to have an valid request to test my observer in order to have the ability to access the $request->input('images') variable. I do know I can also use $comment->content instead of request()->input('content') because $comment->content already contains the new content which is not saved it this point.
The reason why I need a valid request is that the variable images is not part of the Comment model. So I cannot use $comment->images because it simply doesn't exist. That's why I need to access the request input. What my observer is basically doing is to extract the base64 images from the content, saves them to the server and replaces them by an image link.
class CommentObserver
{
public function updating(Comment $comment)
{
if (!request()->input('content')) {
return;
}
if (request()->input('content') == $comment->getRawOriginal('content')) {
return;
}
$images = request()->input('images');
if(!is_array($images)) {
$images = json_decode(request()->input('images'));
}
checkExistingImagesAndDeleteWhenNotFound($comment, request()->input('content'), 'comments', 'medium');
$comment->content = addBase64ImagesToModelFromContent($comment, request()->input('content'), $images, 'comments', 'medium');
}
}
This is my test so far. I choose way 1 but as described already this always leads to an validation error by the nova controller and I cannot figure out what is the error/what is missing or wrong.
class CommentObserverTest extends TestCase
{
/** #test */
public function it_test()
{
$user = User::factory()->create([
'role_id' => Role::getIdByName('admin')
]);
$product = Product::factory()->create();
$comment = Comment::factory()->create(['user_id' => $user->id, 'content' => '<p>Das ist wirklich ein super Preis!</p>', 'commentable_type' => 'App\Models\Product', 'commentable_id' => $product->id]);
$data = [
'content' => '<p>Das ist wirklich ein HAMMER Preis!</p>',
'contentDraftId' => '278350e2-1b6b-4009-b4a5-05b92aedaae6',
'pageStatus' => PageStatus::getIdByStatus('publish'),
'pageStatus_trashed' => false,
'commentable' => $product->id,
'commentable_type' => 'App\Models\Product',
'commentable_trashed' => false,
'user' => $user->id,
'user_trashed' => false,
'_method' => 'PUT',
'_retrieved_at' => now()
];
$this->actingAs($user);
$response = $this->put('http://nova.mywebsiteproject.test/nova-api/comments/' . $comment->id, $data);
dd($response->decodeResponseJson());
$das = new CommentObserver();
}
}
Kind regards and thank you
Why depend on the boot method in your NovaServiceProvider? It is possible to call the observe() method on the fly in your test:
class ExampleTest extends TestCase
{
/** #test */
public function observe_test()
{
Model::observe(ModelObserver::class);
// If you need the request helper, you can add input like so:
request()->merge([
'content' => 'test'
]);
// Fire model event by updating model
$model->update([
'someField' => 'someValue',
]);
// Updating should be triggered in ModelObserver
}
}
It should be now be possible in your observer class:
public function updating(Model $model)
{
dd(request()->input('content')); // returns 'test'
}

How to skip whole records/models when using Eloquent API Resources

I'm using the API resources & collections from here: https://laravel.com/docs/8.x/eloquent-resources
It works pretty well, except I can't find a clean way to filter returned models (records). So here's what I'm doing now:
class MyResource extends JsonResource
{
public function toArray($request)
{
if($someCondition) {
return [];
}
if(! $otherCondition) {
return null;
}
return [
'data' => [
'id' => $this->id,
'name' => $this->name,
'url' => $this->link,
],
];
}
Then from my api.php routes file, I call that like this:
Route::middleware('auth:api')->get('/myendpoint', function(Request $request) {
return MyResource::collection(Item::paginate()->withQueryString());
});
This mostly works, but my early returns still show up in the output as literal "null" values (the string "null").
I've searched and searched, from Google to Youtube to the Laravel docs and here on SO, but I can't find any mention of this. Is there really no way to exclude certain records/models from the API output?
Of course, I could manually code this up in my controller & model, but it'd be really nice to use Laravel's built-in API resources for this.

Unit Test Laravel's FormRequest

I am trying to unit test various custom FormRequest inputs. I found solutions that:
Suggest using the $this->call(…) method and assert the response with the expected value (link to answer). This is overkill, because it creates a direct dependency on Routing and Controllers.
Taylor’s test, from the Laravel Framework found in tests/Foundation/FoundationFormRequestTest.php. There is a lot of mocking and overhead done there.
I am looking for a solution where I can unit test individual field inputs against the rules (independent of other fields in the same request).
Sample FormRequest:
public function rules()
{
return [
'first_name' => 'required|between:2,50|alpha',
'last_name' => 'required|between:2,50|alpha',
'email' => 'required|email|unique:users,email',
'username' => 'required|between:6,50|alpha_num|unique:users,username',
'password' => 'required|between:8,50|alpha_num|confirmed',
];
}
Desired Test:
public function testFirstNameField()
{
// assertFalse, required
// ...
// assertTrue, required
// ...
// assertFalse, between
// ...
}
public function testLastNameField()
{
// ...
}
How can I unit test (assert) each validation rule of every field in isolation and individually?
I found a good solution on Laracast and added some customization to the mix.
The Code
/**
* Test first_name validation rules
*
* #return void
*/
public function test_valid_first_name()
{
$this->assertTrue($this->validateField('first_name', 'jon'));
$this->assertTrue($this->validateField('first_name', 'jo'));
$this->assertFalse($this->validateField('first_name', 'j'));
$this->assertFalse($this->validateField('first_name', ''));
$this->assertFalse($this->validateField('first_name', '1'));
$this->assertFalse($this->validateField('first_name', 'jon1'));
}
/**
* Check a field and value against validation rule
*
* #param string $field
* #param mixed $value
* #return bool
*/
protected function validateField(string $field, $value): bool
{
return $this->validator->make(
[$field => $value],
[$field => $this->rules[$field]]
)->passes();
}
/**
* Set up operations
*
* #return void
*/
public function setUp(): void
{
parent::setUp();
$this->rules = (new UserStoreRequest())->rules();
$this->validator = $this->app['validator'];
}
Update
There is an e2e approach to the same problem. You can POST the data to be checked to the route in question and then see if the response contains session errors.
$response = $this->json('POST',
'/route_in_question',
['first_name' => 'S']
);
$response->assertSessionHasErrors(['first_name']);
I see this question has a lot of views and misconceptions, so I will add my grain of sand to help anyone who still has doubts.
First of all, remember to never test the framework, if you end up doing something similar to the other answers (building or binding a framework core's mock (disregard Facades), then you are doing something wrong related to testing).
So, if you want to test a controller, the always way to go is: Feature test it. NEVER unit test it, not only is cumbersome to unit test it (create a request with data, maybe special requirements) but also instantiate the controller (sometimes it is not new HomeController and done...).
They way to solve the author's problem is to feature test like this (remember, is an example, there are plenty of ways):
Let's say we have this rules:
public function rules()
{
return [
'name' => ['required', 'min:3'],
'username' => ['required', 'min:3', 'unique:users'],
];
}
namespace Tests\Feature;
use App\Models\User;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;
class HomeControllerTest extends TestCase
{
use RefreshDatabase;
/*
* #dataProvider invalid_fields
*/
public function test_fields_rules($field, $value, $error)
{
// Create fake user already existing for 'unique' rule
User::factory()->create(['username' => 'known_username']);
$response = $this->post('/test', [$field => $value]);
$response->assertSessionHasErrors([$field => $error]);
}
public function invalid_fields()
{
return [
'Null name' => ['name', null, 'The name field is required.'],
'Empty name' => ['name', '', 'The name field is required.'],
'Short name' => ['name', 'ab', 'The name must be at least 3 characters.'],
'Null username' => ['username', null, 'The username field is required.'],
'Empty username' => ['username', '', 'The username field is required.'],
'Short username' => ['username', 'ab', 'The username must be at least 3 characters.'],
'Unique username' => ['username', 'known_username', 'The username has already been taken.'],
];
}
}
And that's it... that is the way of doing this sort of tests... No need to instantiate/mock and bind any framework (Illuminate namespace) class.
I am taking advantage of PHPUnit too, I am using data providers so I don't need to copy paste a test or create a protected/private method that a test will call to "setup" anything... I reuse the test, I just change the input (field, value and expected error).
If you need to test if a view is being displayed, just do $response->assertViewIs('whatever.your.view');, you can also pass a second attribute (but use assertViewHas) to test if the view has a variable in it (and a desired value). Again, no need to instantiate/mock any core class...
Have in consideration this is just a simple example, it can be done a little better (avoid copy pasting some errors messages).
One last important thing: If you unit test this type of things, then, if you change how this is done in the back, you will have to change your unit test (if you have mocked/instantiated core classes). For example, maybe you are now using a FormRequest, but later you switch to other validation method, like a Validator directly, or an API call to other service, so you are not even validating directly in your code. If you do a Feature Test, you will not have to change your unit test code, as it will still receive the same input and give the same output, but if it is a Unit Test, then you are going to change how it works... That is the NO-NO part I am saying about this...
Always look at test as:
Setup minimum stuff (context) for it to begin with:
What is your context to begin with so it has logic ?
Should a user with X username already exist ?
Should I have 3 models created ?
Etc.
Call/execute your desired code:
Send data to your URL (POST/PUT/PATCH/DELETE)
Access a URL (GET)
Execute your Artisan Command
If it is a Unit Test, instantiate your class, and call the desired method.
Assert the result:
Assert the database for changes if you expected them
Assert if the returned value matches what you expected/wanted
Assert if a file changed in any desired way (deletion, update, etc)
Assert whatever you expected to happen
So, you should see tests as a black box. Input -> Output, no need to replicate the middle of it... You could setup some fakes, but not fake everything or the core of it... You could mock it, but I hope you understood what I meant to say, at this point...
Friends, please, make the unit-test properly, after all, it is not only rules you are testing here, the validationData and withValidator functions may be there too.
This is how it should be done:
<?php
namespace Tests\Unit;
use App\Http\Requests\AddressesRequest;
use App\Models\Country;
use Faker\Factory as FakerFactory;
use Illuminate\Routing\Redirector;
use Illuminate\Validation\ValidationException;
use Tests\TestCase;
use function app;
use function str_random;
class AddressesRequestTest extends TestCase
{
public function test_AddressesRequest_empty()
{
try {
//app(AddressesRequest::class);
$request = new AddressesRequest([]);
$request
->setContainer(app())
->setRedirector(app(Redirector::class))
->validateResolved();
} catch (ValidationException $ex) {
}
//\Log::debug(print_r($ex->errors(), true));
$this->assertTrue(isset($ex));
$this->assertTrue(array_key_exists('the_address', $ex->errors()));
$this->assertTrue(array_key_exists('the_address.billing', $ex->errors()));
}
public function test_AddressesRequest_success_billing_only()
{
$faker = FakerFactory::create();
$param = [
'the_address' => [
'billing' => [
'zip' => $faker->postcode,
'phone' => $faker->phoneNumber,
'country_id' => $faker->numberBetween(1, Country::count()),
'state' => $faker->state,
'state_code' => str_random(2),
'city' => $faker->city,
'address' => $faker->buildingNumber . ' ' . $faker->streetName,
'suite' => $faker->secondaryAddress,
]
]
];
try {
//app(AddressesRequest::class);
$request = new AddressesRequest($param);
$request
->setContainer(app())
->setRedirector(app(Redirector::class))
->validateResolved();
} catch (ValidationException $ex) {
}
$this->assertFalse(isset($ex));
}
}

Running a cron job in Symfony2 - trying to call a method in a controller

I'm having a nightmare trying to set up a cron job in my Symfony2 project.
I understand the principle of setting it up and where to put the code but I just cannot get it to do what I need.
Basically, I need the cron job to run every day and check a database of clients in order to find out if an invoice needs sending. The actual client referencing is yet to be done but I have written a test which I want to generate and email and invoice based on hardcoded values I pass to the function.
// AppBundle/Command/CronRunCommand.php
protected function execute(InputInterface $input, OutputInterface $output)
{
$request = new Request();
$request->attributes->set('client','14');
$request->attributes->set('invoice_id','3');
$request->attributes->set('dl','0');
$output->writeln('<comment>Running Invoice Cron Task...</comment>');
return $this->getContainer()->get('invoices')->generateInvoiceAction($request);
}
I have set invoices up as a service in my config.yml:
services:
invoices:
class: AppBundle\Controller\InvoiceController
And in InvoiceController there is a function that will generate an invoice by using Invoice Painter Bundle and then send it to the specified email address (currently hard coded for development purposes).
When I run the cron command on my console, it throws the following error:
[Symfony\Component\Debug\Exception\FatalErrorException]
Error: Call to a member function has() on null
I have searched for this and I believe it is to do with the fact that it's referencing a controller method and my command file does not extend controller, but I'm so confused about how I can do this - surely there is a way of running a method in a controller as a cron job?
Any help appreciated.
Michael
I fear you may still not be understanding the big picture. Console apps don't have a request object and thus the whole request_stack is not going to work. I know you tried creating a request object but that is not going to impact the request stack.
Your console app should look something like:
protected function execute(InputInterface $input, OutputInterface $output)
{
$data = [
'client' => 14,
'invoice' => 3,
'dl' => 0,
];
$invoiceManager = $this->getContainer()->get('invoices');
$results = $invoiceManager->generateInvoice($data);
}
Your controller action would be something like:
public function generateInvoiceAction(Request $request)
{
$data = [
'client' => $request->attribute->get('client'),
'invoice' => $request->attribute->get('invoice'),
'dl' => $request->attribute->get('dl'),
];
$invoiceManager = $this->getContainer()->get('invoices');
$results = $invoiceManager->generateInvoice($data);
The invoice manager might look like:
class InvoiceManager {
public function __construct($em) {
$em = $this->em;
}
public function generateInvoice($data) {
$client = $this->em->find('Client',$data['client']);

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