jikan-rest/tests/Unit/DefaultMediatorTest.php

<?php
/** @noinspection PhpIllegalPsrClassPathInspection */
namespace Tests\Unit;

use App\Contracts\DataRequest;
use App\Contracts\RequestHandler;
use App\Dto\AnimeSearchCommand;
use App\Support\DefaultMediator;
use Tests\TestCase;

final class DefaultMediatorTest extends TestCase
{
    public function testSendShouldReturnErrorResponseIfHandlerClassDoesntExist()
    {
        $mockHandler = \Mockery::mock(RequestHandler::class);
        $mockHandler->allows()->requestClass()->andReturns(AnimeSearchCommand::class);
        $sut = new DefaultMediator($mockHandler);

        $response = $sut->send(\Mockery::mock(DataRequest::class));
        $this->assertEquals(500, $response->status());
    }

    public function testSendShouldCallHandleOnHandlerIfFound()
    {
        $mockHandler = \Mockery::mock(RequestHandler::class);
        $mockRequest = \Mockery::mock(DataRequest::class);
        $mockHandler->allows()->requestClass()->andReturns(get_class($mockRequest));
        $mockHandler->expects()->handle($mockRequest)->once()->andReturns(response()->json([
            "message" => "success"
        ]));

        $sut = new DefaultMediator($mockHandler);
        $response = $sut->send($mockRequest);
        $this->assertEquals(200, $response->status());
        $this->assertEquals(json_encode(["message" => "success"]), $response->content());
    }
}