diff --git a/tests/main/gradebook/lib/be/forumthreadlink.class.test.php b/tests/main/gradebook/lib/be/forumthreadlink.class.test.php
index 03a1138164..493db7f7a8 100644
--- a/tests/main/gradebook/lib/be/forumthreadlink.class.test.php
+++ b/tests/main/gradebook/lib/be/forumthreadlink.class.test.php
@@ -7,9 +7,28 @@ class TestForumThreadLink extends UnitTestCase {
 
 	public function __construct() {
 		// The constructor acts like a global setUp for the class
-		TestManager::create_test_course('COURSEFORUMTHREAD');			
+		TestManager::create_test_course('COURSEFORUMTHREAD');
+		$this->forumthreadlink = new ForumThreadLink();
+		$this->forumthreadlink->set_id(1);
+		$this->forumthreadlink->set_type(5);
+		$this->forumthreadlink->set_ref_id(1);
+		$this->forumthreadlink->set_user_id(1);
+		$this->forumthreadlink->set_course_code('COURSEFORUMTHREAD');
+		$this->forumthreadlink->set_category_id(1);
+		$this->forumthreadlink->set_date(date);
+		$this->forumthreadlink->set_weight(1);
+		$this->forumthreadlink->set_visible('visible');
+		
 	}
 	
+	public function testcalc_score() {
+		$res = $this->forumthreadlink->calc_score(null);
+		$this->assertNull($res);
+		//var_dump($res);
+		$res2 = $this->forumthreadlink->calc_score(1);
+		$this->assertTrue(is_array($res2));
+		//var_dump($res2);
+	}