Fixes presence of empty tags for private tags and in search results

  * Private tags: make sure empty tags are properly filtered
  * Search results:
    * Use preg_split instead of function combination
    * Add normalize_spaces to remove extra whitespaces displaying empty tags search

1 files changed, 13 insertions, 1 deletions

diff --git a/tests/UtilsTest.php b/tests/UtilsTest.php
index 0cf9a921..c885f552 100644
--- a/tests/UtilsTest.php
+++ b/tests/UtilsTest.php
@@ -253,7 +253,7 @@ class UtilsTest extends PHPUnit_Framework_TestCase
             is_session_id_valid('c0ZqcWF3VFE2NmJBdm1HMVQ0ZHJ3UmZPbTFsNGhkNHI=')
         );
     }
-
+    
     /**
      * Test generateSecretApi.
      */
@@ -270,4 +270,16 @@ class UtilsTest extends PHPUnit_Framework_TestCase
         $this->assertFalse(generate_api_secret('', ''));
         $this->assertFalse(generate_api_secret(false, false));
     }
+
+    /**
+     * Test normalize_spaces.
+     */
+    public function testNormalizeSpace()
+    {
+        $str = ' foo   bar is   important ';
+        $this->assertEquals('foo bar is important', normalize_spaces($str));
+        $this->assertEquals('foo', normalize_spaces('foo'));
+        $this->assertEquals('', normalize_spaces(''));
+        $this->assertEquals(null, normalize_spaces(null));
+    }
 }