diff --git a/test/OPDSTest.php b/test/OPDSTest.php
index edaa245..9d6aafc 100644
--- a/test/OPDSTest.php
+++ b/test/OPDSTest.php
@@ -38,10 +38,8 @@ class OpdsTest extends PHPUnit_Framework_TestCase
         global $config;
         $page = Base::PAGE_INDEX;
         $query = NULL;
-        $search = NULL;
         $qid = NULL;
         $n = "1";
-        $database = NULL;
 
         $_SERVER['QUERY_STRING'] = "";
         $config['cops_subtitle_default'] = "My subtitle";
@@ -66,10 +64,8 @@ class OpdsTest extends PHPUnit_Framework_TestCase
                                               "One book" => dirname(__FILE__) . "/BaseWithOneBook/");
         $page = Base::PAGE_AUTHOR_DETAIL;
         $query = NULL;
-        $search = NULL;
         $qid = "1";
         $n = "1";
-        $database = NULL;
         $_SERVER['QUERY_STRING'] = "page=" . Base::PAGE_AUTHOR_DETAIL . "&id=1";
         $_GET ["db"] = "0";
 
@@ -87,10 +83,8 @@ class OpdsTest extends PHPUnit_Framework_TestCase
         global $config;
         $page = Base::PAGE_AUTHOR_DETAIL;
         $query = NULL;
-        $search = NULL;
         $qid = "1";
         $n = "1";
-        $database = NULL;
         $_SERVER['QUERY_STRING'] = "page=" . Base::PAGE_AUTHOR_DETAIL . "&id=1&n=1";
 
         $config['cops_max_item_per_page'] = 2;
diff --git a/test/bookTest.php b/test/bookTest.php
index 05f3193..eb1c8fa 100644
--- a/test/bookTest.php
+++ b/test/bookTest.php
@@ -101,6 +101,7 @@ class BookTest extends PHPUnit_Framework_TestCase
     {
         // All books by first letter
         list ($entryArray, $totalNumber) = Book::getBooksByStartingLetter ("T", -1);
+        $this->assertEquals (-1, $totalNumber);
         $this->assertCount (3, $entryArray);
     }
     
diff --git a/test/pageTest.php b/test/pageTest.php
index 4af18f7..d51e48a 100644
--- a/test/pageTest.php
+++ b/test/pageTest.php
@@ -308,7 +308,6 @@ class PageTest extends PHPUnit_Framework_TestCase
     
     public function testPageAllSeries ()
     {
-        global $config;
         $page = Base::PAGE_ALL_SERIES;
         $query = NULL;
         $qid = NULL;