Detect user locale

tests/LocaleMiddlewareTest.php

@@ -0,0 +1,73 @@
+<?php
+/**
+ * LocaleMiddlewareTest class.
+ */
+
+namespace Alltube\Test;
+
+use Alltube\LocaleMiddleware;
+use Slim\Http\Environment;
+use Slim\Http\Request;
+use Slim\Http\Response;
+
+/**
+ * Unit tests for the FrontController class.
+ */
+class LocaleMiddlewareTest extends \PHPUnit_Framework_TestCase
+{
+
+    /**
+     * Prepare tests.
+     */
+    protected function setUp()
+    {
+        $this->middleware = new LocaleMiddleware();
+    }
+
+    /**
+     * Test the testLocale() function.
+     *
+     * @return void
+     */
+    public function testTestLocale()
+    {
+        $locale = [
+            'language'=>'fr',
+            'region'=>'FR',
+        ];
+        $this->assertEquals('fr_FR', $this->middleware->testLocale($locale));
+    }
+
+    /**
+     * Test the testLocale() function with an unsupported locale.
+     *
+     * @return void
+     */
+    public function testLocaleWithWrongLocale()
+    {
+        $locale = [
+            'language'=>'foo',
+            'region'=>'BAR'
+        ];
+        $this->assertNull($this->middleware->testLocale($locale));
+        $this->assertNull($this->middleware->testLocale([]));
+    }
+
+    /**
+     * Test the __invoke() function.
+     *
+     * @return void
+     */
+    public function testInvoke()
+    {
+        $request = Request::createFromEnvironment(Environment::mock());
+        $this->middleware->__invoke(
+            $request->withHeader('Accept-Language', 'fr-FR'),
+            new Response(),
+            function () {
+            }
+        );
+        $this->assertEquals('fr_FR', getenv('LANG'));
+        $this->assertEquals('fr_FR', setlocale(LC_ALL, null));
+    }
+}