Add tests

phpunit.xml

@@ -5,6 +5,7 @@
          executionOrder="depends,defects"
          beStrictAboutOutputDuringTests="true"
          beStrictAboutCoverageMetadata="true"
+         displayDetailsOnTestsThatTriggerWarnings="true"
          failOnRisky="true"
          failOnWarning="true"
          cacheDirectory=".phpunit.cache"

tests/DialogSerializationTest.php

@@ -0,0 +1,48 @@
+<?php
+
+declare(strict_types=1);
+
+namespace KootLabs\TelegramBotDialogs\Tests;
+
+use KootLabs\TelegramBotDialogs\Dialogs\HelloExampleDialog;
+use KootLabs\TelegramBotDialogs\Tests\Fakes\FakeBot;
+use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\Attributes\Test;
+use Telegram\Bot\Objects\Update;
+
+#[CoversClass(\KootLabs\TelegramBotDialogs\Dialog::class)]
+final class DialogSerializationTest extends TestCase
+{
+    use FakeBot;
+
+    private const RANDOM_CHAT_ID = 42;
+
+    #[Test]
+    public function it_can_be_serialized_and_unserialized_on_the_first_step(): void
+    {
+        $bot = $this->createBotWithQueuedResponse();
+        $dialog = new HelloExampleDialog(self::RANDOM_CHAT_ID, $bot);
+
+        $unserializedDialog = unserialize(serialize($dialog));
+
+        $this->assertSame($dialog->getChatId(), $unserializedDialog->getChatId());
+        $this->assertSame($dialog->getUserId(), $unserializedDialog->getUserId());
+        $this->assertSame($dialog->ttl(), $unserializedDialog->ttl());
+        $this->assertSame($dialog->isStart(), $unserializedDialog->isStart());
+    }
+
+    #[Test]
+    public function it_can_be_serialized_and_unserialized_on_step_after_first(): void
+    {
+        $bot = $this->createBotWithQueuedResponse();
+        $dialog = new HelloExampleDialog(self::RANDOM_CHAT_ID, $bot);
+        $dialog->proceed(new Update([]));
+
+        $unserializedDialog = unserialize(serialize($dialog));
+
+        $this->assertSame($dialog->getChatId(), $unserializedDialog->getChatId());
+        $this->assertSame($dialog->getUserId(), $unserializedDialog->getUserId());
+        $this->assertSame($dialog->ttl(), $unserializedDialog->ttl());
+        $this->assertSame($dialog->isStart(), $unserializedDialog->isStart());
+    }
+}

tests/Fakes/FakeBot.php

@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+namespace KootLabs\TelegramBotDialogs\Tests\Fakes;
+
+use Telegram\Bot\Api;
+
+trait FakeBot
+{
+    use FakeHttp;
+
+    public function createBotWithQueuedResponse(array $data = [], int $statusCode = 200, array $headers = []): Api
+    {
+        return new Api(
+            'fake',
+            false,
+            $this->getGuzzleHttpClient([$this->makeFakeServerResponse($data, $statusCode, $headers)])
+        );
+    }
+}

tests/Fakes/FakeHttp.php

@@ -0,0 +1,49 @@
+<?php
+
+declare(strict_types=1);
+
+namespace KootLabs\TelegramBotDialogs\Tests\Fakes;
+
+use GuzzleHttp\Client;
+use GuzzleHttp\Handler\MockHandler;
+use GuzzleHttp\HandlerStack;
+use GuzzleHttp\Middleware;
+use GuzzleHttp\Psr7\Response;
+use Telegram\Bot\HttpClients\GuzzleHttpClient;
+
+trait FakeHttp
+{
+    /**
+     * This collection contains a history of all requests and responses
+     * sent using the client.
+     */
+    protected array $history = [];
+
+    public function getGuzzleHttpClient(array $responsesToQueue = []): GuzzleHttpClient
+    {
+        $client = $this->createClientWithQueuedResponse($responsesToQueue);
+
+        return new GuzzleHttpClient($client);
+    }
+
+    protected function createClientWithQueuedResponse(array $responsesToQueue): Client
+    {
+        $this->history = [];
+        $handler = HandlerStack::create(new MockHandler($responsesToQueue));
+        $handler->push(Middleware::history($this->history));
+
+        return new Client(['handler' => $handler]);
+    }
+
+    public function makeFakeServerResponse(array $data, int $statusCode = 200, array $headers = []): Response
+    {
+        return new Response(
+            $statusCode,
+            $headers,
+            json_encode([
+                'ok' => true,
+                'result' => $data,
+            ], \JSON_THROW_ON_ERROR)
+        );
+    }
+}