feat: read BusProNet base data from the MyE&P API

tests/BusProNet/DataProvider/CountryDataProviderTest.php

@@ -0,0 +1,94 @@
+<?php
+
+namespace App\Tests\BusProNet\DataProvider;
+
+use App\BusProNet\DataProvider\CountryDataProvider;
+use App\MyEp\Api\AccessTokenProvider;
+use App\MyEp\Api\ApiClient;
+use App\MyEp\Api\ResponseMapper;
+use App\MyEp\Cache\StaleWhileErrorCache;
+use PHPUnit\Framework\TestCase;
+use Psr\Log\NullLogger;
+use Symfony\Component\Cache\Adapter\ArrayAdapter;
+use Symfony\Component\HttpClient\MockHttpClient;
+use Symfony\Component\HttpClient\Response\MockResponse;
+
+class CountryDataProviderTest extends TestCase
+{
+    public function testCountriesAreKeyedByTheRawToken(): void
+    {
+        $provider = $this->provider([$this->countriesResponse()]);
+
+        $countries = $provider->getAll();
+
+        // the token, not an ISO code: this is the vocabulary a hotel's country and a
+        // teamer's nationality join against
+        $this->assertEquals(['D', 'A', 'CH'], array_keys($countries));
+        $this->assertEquals('Deutschland', $countries['D']->getName());
+        $this->assertEquals('deutsch', $countries['D']->getNationality());
+    }
+
+    public function testGetResolvesByTokenAndToleratesNull(): void
+    {
+        $provider = $this->provider([$this->countriesResponse()]);
+
+        $this->assertEquals('Österreich', $provider->get('A')->getName());
+        $this->assertNull($provider->get('XX'));
+        $this->assertNull($provider->get(null));
+    }
+
+    public function testACountryWithoutATokenIsSkipped(): void
+    {
+        $provider = $this->provider([new MockResponse(json_encode([
+            ['id' => 1, 'name' => 'Ohne Token'],
+            ['id' => 2, 'name' => 'Schweiz', 'token' => 'CH'],
+        ]))]);
+
+        $this->assertEquals(['CH'], array_keys($provider->getAll()));
+    }
+
+    public function testAFailingRequestServesTheLastKnownCountries(): void
+    {
+        $pool = new ArrayAdapter();
+        $this->provider([$this->countriesResponse()], $pool)->getAll();
+
+        $pool->deleteItem('myep_countries');
+        $failing = $this->provider([new MockResponse('', ['http_code' => 503])], $pool);
+
+        $this->assertCount(3, $failing->getAll());
+    }
+
+    private function countriesResponse(): MockResponse
+    {
+        return new MockResponse(json_encode([
+            ['id' => 1, 'name' => 'Deutschland', 'token' => 'D', 'nationality' => 'deutsch'],
+            ['id' => 2, 'name' => 'Österreich', 'token' => 'A', 'nationality' => 'österreichisch'],
+            ['id' => 3, 'name' => 'Schweiz', 'token' => 'CH', 'nationality' => 'schweizerisch'],
+        ]));
+    }
+
+    /**
+     * @param list<MockResponse> $responses
+     */
+    private function provider(array $responses, ?ArrayAdapter $pool = null): CountryDataProvider
+    {
+        $pool ??= new ArrayAdapter();
+        $logger = new NullLogger();
+
+        $httpClient = new MockHttpClient(array_merge(
+            [new MockResponse(json_encode(['access_token' => 'token', 'expires_in' => 600]))],
+            $responses,
+        ));
+
+        $tokens = new AccessTokenProvider($httpClient, new ArrayAdapter(), $logger, [
+            'client_id' => 'id',
+            'client_secret' => 'secret',
+        ]);
+
+        return new CountryDataProvider(
+            new ApiClient($httpClient, $tokens, $logger),
+            new ResponseMapper($logger),
+            new StaleWhileErrorCache($pool, $logger),
+        );
+    }
+}