first commit

tests/unit/Grav/Common/Language/LanguageCodesTest.php

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+<?php
+
+use Grav\Common\Language\LanguageCodes;
+
+
+/**
+ * Class ParsedownTest
+ */
+class LanguageCodesTest extends \Codeception\TestCase\Test
+{
+    public function testRtl()
+    {
+        $this->assertSame('ltr',
+            LanguageCodes::getOrientation('en'));
+        $this->assertSame('rtl',
+            LanguageCodes::getOrientation('ar'));
+        $this->assertSame('rtl',
+            LanguageCodes::getOrientation('he'));
+        $this->assertTrue(LanguageCodes::isRtl('ar'));
+        $this->assertFalse(LanguageCodes::isRtl('fr'));
+
+    }
+
+}