diff --git a/tests/core/classes/abstract_class.phpt b/tests/core/classes/abstract_class.phpt
deleted file mode 100644
index cae9c8a5..00000000
--- a/tests/core/classes/abstract_class.phpt
+++ /dev/null
@@ -1,32 +0,0 @@
---TEST--
-ZE2 An abstract class cannot be instantiated
---FILE--
-<?php
-
-abstract class fail {
-    abstract function show();
-}
-
-class pass extends fail {
-    function show() {
-        echo "Call to function show()\n";
-    }
-}
-function main() {
-    $t2 = new pass();
-    $t2->show();
-
-    $t = new fail();
-    $t->show();
-
-    echo "Done\n"; // shouldn't be displayed
-}
-?>
---EXPECTF--
-Call to function show()
-
-Fatal error: Uncaught Error: Cannot instantiate abstract class fail in %s:%d
-Stack trace:
-#0 Unknown(0) : %s
-#1 {main}
-  thrown in %s on line %d
diff --git a/tests/core/classes/final.phpt b/tests/core/classes/final-class.phpt
similarity index 100%
rename from tests/core/classes/final.phpt
rename to tests/core/classes/final-class.phpt
diff --git a/tests/core/classes/iterators_004.phpt b/tests/core/classes/iterators_004.phpt
index 857afdd9..a2e38d22 100644
--- a/tests/core/classes/iterators_004.phpt
+++ b/tests/core/classes/iterators_004.phpt
@@ -39,9 +39,9 @@ function main() {
     }
 
     echo "2nd try\n";
-    $obj = new c2();
+    $obj2 = new c2();
 
-    foreach($obj as $v => $w) {
+    foreach($obj2 as $v => $w) {
         echo "object:$v=>$w\n";
     }
 
diff --git a/tests/core/classes/iterators_006.phpt b/tests/core/classes/iterators_006.phpt
index 1cb34097..c9fd72f7 100644
--- a/tests/core/classes/iterators_006.phpt
+++ b/tests/core/classes/iterators_006.phpt
@@ -58,15 +58,15 @@ function main() {
     #var_dump($array->current());
     echo "===2nd===\n";
 
-    $array = new ai();
+    $array2 = new ai();
 
-    foreach ($array as $property => $value) {
+    foreach ($array2 as $property => $value) {
         print "$property: $value\n";
     }
 
     echo "===3rd===\n";
 
-    foreach ($array as $property => $value) {
+    foreach ($array2 as $property => $value) {
         print "$property: $value\n";
     }
 }