diff --git a/js/js.tests/test/org/jetbrains/k2js/test/semantics/ArraysTest.java b/js/js.tests/test/org/jetbrains/k2js/test/semantics/StdLibArraysTest.java
similarity index 93%
rename from js/js.tests/test/org/jetbrains/k2js/test/semantics/ArraysTest.java
rename to js/js.tests/test/org/jetbrains/k2js/test/semantics/StdLibArraysTest.java
index f9463d4db69..a7a912d6a96 100644
--- a/js/js.tests/test/org/jetbrains/k2js/test/semantics/ArraysTest.java
+++ b/js/js.tests/test/org/jetbrains/k2js/test/semantics/StdLibArraysTest.java
@@ -19,7 +19,7 @@ package org.jetbrains.k2js.test.semantics;
 import junit.framework.Test;
 
 @SuppressWarnings("JUnitTestCaseWithNoTests")
-public final class ArraysTest extends JsUnitTestBase {
+public final class StdLibArraysTest extends JsUnitTestBase {
     public static Test suite() throws Exception {
         return createTestSuiteForFile("libraries/stdlib/test/collections/ArraysTest.kt");
     }
diff --git a/js/js.tests/test/org/jetbrains/k2js/test/semantics/BitwiseOperationsTest.java b/js/js.tests/test/org/jetbrains/k2js/test/semantics/StdLibBitwiseOperationsTest.java
similarity index 92%
rename from js/js.tests/test/org/jetbrains/k2js/test/semantics/BitwiseOperationsTest.java
rename to js/js.tests/test/org/jetbrains/k2js/test/semantics/StdLibBitwiseOperationsTest.java
index a936f2d7d6d..d6da13bb521 100644
--- a/js/js.tests/test/org/jetbrains/k2js/test/semantics/BitwiseOperationsTest.java
+++ b/js/js.tests/test/org/jetbrains/k2js/test/semantics/StdLibBitwiseOperationsTest.java
@@ -20,7 +20,7 @@ import junit.framework.Test;
 
 //NOTE: well, it has tests
 @SuppressWarnings("JUnitTestCaseWithNoTests")
-public final class BitwiseOperationsTest extends JsUnitTestBase {
+public final class StdLibBitwiseOperationsTest extends JsUnitTestBase {
     public static Test suite() throws Exception {
         return createTestSuiteForFile("libraries/stdlib/test/language/BitwiseOperationsTest.kt");
     }
diff --git a/js/js.tests/test/org/jetbrains/k2js/test/semantics/StdLibMapTest.java b/js/js.tests/test/org/jetbrains/k2js/test/semantics/StdLibMapTest.java
new file mode 100644
index 00000000000..6bafdf740d1
--- /dev/null
+++ b/js/js.tests/test/org/jetbrains/k2js/test/semantics/StdLibMapTest.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2010-2013 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.k2js.test.semantics;
+
+import junit.framework.Test;
+
+@SuppressWarnings("JUnitTestCaseWithNoTests")
+public final class StdLibMapTest extends JsUnitTestBase {
+    public static Test suite() throws Exception {
+        return createTestSuiteForFile("libraries/stdlib/test/collections/MapTest.kt");
+    }
+}
+