diff --git a/_test/cases/inc/indexer_idx_indexlengths.test.php b/_test/cases/inc/indexer_idx_indexlengths.test.php
index d1339a111ab55103055da3f86b4673cdb72b1700..8565639be7c71490bc6566441c2f592177e52996 100644
--- a/_test/cases/inc/indexer_idx_indexlengths.test.php
+++ b/_test/cases/inc/indexer_idx_indexlengths.test.php
@@ -56,66 +56,5 @@ class indexer_idx_indexlengths_test extends UnitTestCase {
     }
 }
 
-class indexer_idx_indexlengths_time extends UnitTestCase {
-
-    /**
-     * Test the time improvments of the new function
-     * Time reference for 10000 call oneWords: 4,6s
-     * It's 90% faster
-     */
-    function test_oneWord(){
-        global $conf;
-        $filter[8] = array('dokuwiki');
-        $start = microtime(true);
-        for ($i = 0; $i < 10000; $i++) {
-            $result = idx_indexLengths(&$filter);
-        }
-        $end = microtime(true);
-        $time = $end - $start;
-        $timeref = 4.6*0.10; // actual execution time of 4,6s for 10000 calls
-        echo "1) 10% ref : $timeref -> $time \n";
-        $this->assertTrue($time < $timeref);
-    }
-
-    /**
-     * Test the time improvments of the new function
-     * Time reference for 10000 call moreWords: 4,6s
-     * It's 90% faster
-     */
-    function test_moreWords() {
-        global $conf;
-        $filter = array( 4 => array('test'), 8 => array('dokuwiki'), 7 => array('powered'));
-        // more words should return the indexes
-        $start = microtime(true);
-        for ($i = 0; $i < 10000; $i++) {
-            $result = idx_indexLengths(&$filter);
-        }
-        $end = microtime(true);
-        $time = $end - $start;
-        $timeref = 4.6*0.10; // actual execution time of 4,6s for 10000 calls
-        echo "2) 10% ref : $timeref -> $time \n";
-        $this->assertTrue($time < $timeref);
-    }
-
-    /**
-     * Test the time improvments of the new function
-     * Time reference for 10000 call on minValue: 4,9s
-     * Sould be at least 65% faster
-     * Test fail with no cache
-     */
-    function test_minValue() {
-        global $conf;
-        $filter = 5;
-        $start = microtime(true);
-        for ($i = 0; $i < 10000; $i++) {
-            $result = idx_indexLengths(&$filter);
-        }
-        $end = microtime(true);
-        $time = $end - $start;
-        $timeref = 4.9 * 0.35; // actual execution time of 4,9s for 10000 calls
-        echo "3) 35% ref : $timeref -> $time \n";
-        $this->assertTrue($time < $timeref);
-    }
-}
 
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