Add more unit tests

tests/units/HelperTest.php

@@ -0,0 +1,25 @@
+<?php
+
+require_once __DIR__.'/Base.php';
+
+use Core\Helper;
+
+class HelperTest extends Base
+{
+    public function testMarkdown()
+    {
+        $h = new Helper($this->container);
+
+        $this->assertEquals('<p>Test</p>', $h->markdown('Test'));
+
+        $this->assertEquals(
+            '<p>Task <a href="?controller=task&amp;action=show&amp;task_id=123" class="" title="" >#123</a></p>',
+            $h->markdown('Task #123')
+        );
+
+        $this->assertEquals(
+            '<p>Task <a href="?controller=a&amp;action=b&amp;c=d&amp;task_id=123" class="" title="" >#123</a></p>',
+            $h->markdown('Task #123', array('controller' => 'a', 'action' => 'b', 'params' => array('c' => 'd')))
+        );
+    }
+}