Add logic to dynamically resolve the long URL to redirect to based on requesting device

module/Core/test-api/Action/RedirectTest.php

@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+namespace ShlinkioApiTest\Shlink\Core\Action;
+
+use Shlinkio\Shlink\TestUtils\ApiTest\ApiTestCase;
+
+use const ShlinkioTest\Shlink\ANDROID_USER_AGENT;
+use const ShlinkioTest\Shlink\DESKTOP_USER_AGENT;
+use const ShlinkioTest\Shlink\IOS_USER_AGENT;
+
+class RedirectTest extends ApiTestCase
+{
+    /**
+     * @test
+     * @dataProvider provideUserAgents
+     */
+    public function properRedirectHappensBasedOnUserAgent(?string $userAgent, string $expectedRedirect): void
+    {
+        $response = $this->callShortUrl('def456', $userAgent);
+        self::assertEquals($expectedRedirect, $response->getHeaderLine('Location'));
+    }
+
+    public function provideUserAgents(): iterable
+    {
+        yield 'android' => [ANDROID_USER_AGENT, 'https://blog.alejandrocelaya.com/android'];
+        yield 'ios' => [IOS_USER_AGENT, 'https://blog.alejandrocelaya.com/ios'];
+        yield 'desktop' => [
+            DESKTOP_USER_AGENT,
+            'https://blog.alejandrocelaya.com/2017/12/09/acmailer-7-0-the-most-important-release-in-a-long-time/',
+        ];
+        yield 'unknown' => [
+            null,
+            'https://blog.alejandrocelaya.com/2017/12/09/acmailer-7-0-the-most-important-release-in-a-long-time/',
+        ];
+    }
+}