notification-provider/app/tests/Unit/Service/Mattermost/MattermostServiceTest.php

<?php

declare(strict_types=1);

namespace App\Tests\Unit\Service\Mattermost;

use App\Service\BaseService;
use App\Service\Mattermost\MattermostService;
use App\Service\Mattermost\MattermostServiceInterface;
use Faker\Factory;
use GuzzleHttp\Client;
use GuzzleHttp\Psr7\Request;
use App\Tests\Unit\UnitTester;
use Psr\Http\Message\ResponseInterface;

class MattermostServiceTest extends UnitTester
{
    public function testIsExtends(): void
    {
        $stub = $this->createStub(MattermostService::class);

        self::assertTrue(is_subclass_of($stub, BaseService::class));
    }

    public function testIsImplements(): void
    {
        $stub = $this->createStub(MattermostService::class);

        self::assertInstanceOf(MattermostServiceInterface::class, $stub);
    }

    /**
     * @dataProvider sendMessageDataProvider
     * @throws \ReflectionException
     */
    public function testSendMessage(
        string $mattermostUrl,
        string $mattermostUri,
        string $channelName,
        string $botName,
        string $botIcon,
        string $message,
        array $options
    ): void
    {
        $mattermostService = new MattermostService(
            $mattermostUrl, $mattermostUri, $channelName, $botName, $botIcon
        );
        $clientMock = $this->getMockBuilder(Client::class)
            ->disableOriginalConstructor()
            ->onlyMethods(['send'])
            ->getMock();
        $clientProperty = $this->getClassProperty($mattermostService, 'client');
        $clientProperty->setValue($mattermostService, $clientMock);
        $responseMock = $this->getMockForAbstractClass(ResponseInterface::class);
        $request = new Request('POST', $mattermostUri);

        $clientMock->expects(self::once())
            ->method('send')
            ->with($request, $options)
            ->willReturn($responseMock);

        self::assertEquals(
            $responseMock,
            $mattermostService->sendMessage($message)
        );
    }

    /**
     * @throws \JsonException
     */
    public function sendMessageDataProvider(): array
    {
        $faker = (Factory::create('en_EN'));
        $channelName = $faker->sha256();
        $botName = $faker->sha256();
        $botIcon = $faker->sha256();
        $message = $faker->sha256();

        return [
            [
                'mattermostUrl' => $faker->sha256(),
                'mattermostUri' => $faker->sha256(),
                'channelName' => $channelName,
                'botName' => $botName,
                'botIcon' => $botIcon,
                'message' => $message,
                'options' => [
                    'headers' => [
                        'Content-Type' => 'application/json',
                    ],
                    'body' => json_encode([
                        'channel' => $channelName,
                        'username' => $botName,
                        'icon_url' => $botIcon,
                        'text' => $message,
                    ], JSON_THROW_ON_ERROR),
                ]
            ]
        ];
    }
}