test: test ability to add and update feed's default language

Author: Harrison Ifeanyichukwu

tests/ParserTest.php

@@ -8,6 +8,8 @@
 use Forensic\FeedParser\Exceptions\InvalidURLException;
 use Forensic\FeedParser\Exceptions\ResourceNotFoundException;
 use Forensic\FeedParser\Exceptions\FileNotFoundException;
+use Forensic\FeedParser\Exceptions\MalformedFeedException;
+use Forensic\FeedParser\Exceptions\FeedTypeNotSupportedException;
 
 class ParserTest extends TestCase
 {
@@ -18,6 +20,23 @@ public function setup()
         $this->_parser = new Parser();
     }
 
+    public function testDefaultLanguage()
+    {
+        $this->assertSame('en', $this->_parser->getDefaultLanguage());
+    }
+
+    public function testUpdateDefaultLanguage()
+    {
+        $this->_parser->setDefaultLanguage('fr');
+        $this->assertSame('fr', $this->_parser->getDefaultLanguage());
+    }
+
+    public function testConstructDefaultLanguageOption()
+    {
+        $parser = new Parser('fr');
+        $this->assertSame('fr', $parser->getDefaultLanguage());
+    }
+
     public function testInvalidUrl()
     {
         $this->expectException(InvalidURLException::class);