BaseControllerTest

<?php

abstract class ControllerBaseTest extends TestCase
{
    use RefreshDatabase;

    protected $user;

    /**
     * Assert route mapped to expected Controller.
     *
     * @param \Illuminate\Routing\Route $route
     * @param string $class
     */
    protected function assertRouteMappedToExpectedController(Route $route, $class)
    {
        $this->assertSame($class, get_class($route->getController()));
    }

    /**
     * Assert route mapped to expected controller method.
     *
     * @param \Illuminate\Routing\Route $route
     * @param string $action_method
     */
    protected function assertRouteMappedToExpectedControllerActionMethod(Route $route, $action_method)
    {
        $this->assertSame($action_method, $route->getActionMethod());
    }

    /**
     * Assert the route was found.
     *
     * @param \Illuminate\Routing\Route $route
     */
    protected function assertRouteFound(Route $route)
    {
        $this->assertInstanceOf(Route::class, $route);
    }

    /**
     * Assert the route was found.
     *
     * @param \Illuminate\Routing\Route $route
     */
    protected function assertRouteUsesMethod(Route $route, $method)
    {
        $this->assertContains($method, $route->methods());
    }

    /**
     * Assert the route is assigned to the expected middleware
     *
     * @param Route $route
     * @param $middleware
     */
    protected function assertAssignedToMiddleware(Route $route, $middleware)
    {
        collect($middleware)->each(function ($middleware) use ($route) {
            $this->assertContains($middleware, $route->middleware());
        });
    }
}

SomeControllerTest

<?php

class VocabulariesControllerTest extends ControllerBaseTest
{
    /**
     * Route names the Controller responds to.
     */
    protected $routes = [
        'vocabularies.index' => [
            'method' => 'GET',
        ],
        'vocabularies.show' => [
            'method' => 'GET',
        ],
    ];

    /**
     * Ensure routes are registered.
     */
    public function testRoutesRegistered()
    {
        collect($this->routes)->each(function ($attributes, $route) {
            $route = app('router')->getRoutes()->getByName($route);

            $this->assertRouteFound($route);
            $this->assertRouteUsesMethod($route, $attributes['method']);
            $this->assertRouteMappedToExpectedController($route, VocabulariesController::class);
            $this->assertAssignedToMiddleware($route, 'admin');
        });
    }
}