Laravel phpunit testing get with parameters

You can use the route helper to build a url with query string. in your case i would do something like this. Assuming the route name is manage.users.search

$route = route('manage.users.search', [
    'choices'=> 'username',
    'search' => $this->user->username,
]);

$response = $this->followingRedirects()
    ->actingAs($this->user)
    ->get($route);

I'm using Laravel 5.X (more precisely 5.6), you can pass custom parameters using:

 $response = $this->json('GET',  '/url/endpoint',['params'=>'value']);

I had the same issue trying to test GET Requests, you actually can't pass parameter with the $this->get('uri', [header]) but you can by using $this->call, if you check in MakesHttpRequests.php you can see that this->get() is actually using call method.

By adding an array to get method, you are changing the request headers, this is why you are not getting your parameters.

public function get($uri, array $headers = [])
{
    $server = $this->transformHeadersToServerVars($headers);

    return $this->call('GET', $uri, [], [], [], $server);
}

public function call($method, $uri, $parameters = [], $cookies = [], $files = [], $server = [], $content = null)
{
    $kernel = $this->app->make(HttpKernel::class);

    $files = array_merge($files, $this->extractFilesFromDataArray($parameters));

    $symfonyRequest = SymfonyRequest::create(
        $this->prepareUrlForRequest($uri), $method, $parameters,
        $cookies, $files, array_replace($this->serverVariables, $server), $content
    );

    $response = $kernel->handle(
        $request = Request::createFromBase($symfonyRequest)
    );

    if ($this->followRedirects) {
        $response = $this->followRedirects($response);
    }

    $kernel->terminate($request, $response);

    return $this->createTestResponse($response);
}

So if you want to test a GET Request you will have to do this:

$request = $this->call('GET', '/myController', ["test"=>"test"]);

In your controller you should be able to get theses parameters like so:

public function myController(Request $request)
{
    $requestContent = $request->all();
    $parameter = $requestContent['test'];
}