diff --git a/js/js.tests/test/org/jetbrains/k2js/test/rhino/RhinoFunctionNativeObjectResultChecker.java b/js/js.tests/test/org/jetbrains/k2js/test/rhino/RhinoFunctionNativeObjectResultChecker.java
index 0cbd94aff4c..56898278323 100644
--- a/js/js.tests/test/org/jetbrains/k2js/test/rhino/RhinoFunctionNativeObjectResultChecker.java
+++ b/js/js.tests/test/org/jetbrains/k2js/test/rhino/RhinoFunctionNativeObjectResultChecker.java
@@ -16,6 +16,7 @@
 
 package org.jetbrains.k2js.test.rhino;
 
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.mozilla.javascript.Context;
 import org.mozilla.javascript.NativeJavaObject;
@@ -25,12 +26,13 @@ import org.mozilla.javascript.NativeJavaObject;
  */
 public class RhinoFunctionNativeObjectResultChecker extends RhinoFunctionResultChecker {
 
-    public RhinoFunctionNativeObjectResultChecker(@Nullable String packageName, String functionName, Object expectedResult) {
-        super(packageName, functionName, expectedResult);
-    }
-
-    public RhinoFunctionNativeObjectResultChecker(String functionName, Object expectedResult) {
-        super(functionName, expectedResult);
+    public RhinoFunctionNativeObjectResultChecker(
+            @NotNull String moduleName,
+            @Nullable String packageName,
+            @NotNull String functionName,
+            @NotNull Object expectedResult
+    ) {
+        super(moduleName, packageName, functionName, expectedResult);
     }
 
     @Override
diff --git a/js/js.tests/test/org/jetbrains/k2js/test/rhino/RhinoFunctionResultChecker.java b/js/js.tests/test/org/jetbrains/k2js/test/rhino/RhinoFunctionResultChecker.java
index 227a8e7936b..2e9bd415433 100644
--- a/js/js.tests/test/org/jetbrains/k2js/test/rhino/RhinoFunctionResultChecker.java
+++ b/js/js.tests/test/org/jetbrains/k2js/test/rhino/RhinoFunctionResultChecker.java
@@ -16,8 +16,8 @@
 
 package org.jetbrains.k2js.test.rhino;
 
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
-import org.jetbrains.k2js.config.Config;
 import org.jetbrains.k2js.translate.context.Namer;
 import org.mozilla.javascript.Context;
 import org.mozilla.javascript.Scriptable;
@@ -32,21 +32,13 @@ public class RhinoFunctionResultChecker implements RhinoResultChecker {
     private final String functionName;
     private final Object expectedResult;
 
-    public RhinoFunctionResultChecker(@Nullable String packageName, String functionName, Object expectedResult) {
-        this(Config.REWRITABLE_MODULE_NAME, packageName, functionName, expectedResult);
-    }
-
-    public RhinoFunctionResultChecker(@Nullable String moduleId, @Nullable String packageName, String functionName, Object expectedResult) {
+    public RhinoFunctionResultChecker(@NotNull String moduleId, @Nullable String packageName, @NotNull String functionName, @NotNull Object expectedResult) {
         this.moduleId = moduleId;
         this.packageName = packageName;
         this.functionName = functionName;
         this.expectedResult = expectedResult;
     }
 
-    public RhinoFunctionResultChecker(String functionName, Object expectedResult) {
-        this(null, functionName, expectedResult);
-    }
-
     @Override
     public void runChecks(Context context, Scriptable scope) throws Exception {
         Object result = evaluateFunction(context, scope);
@@ -57,8 +49,6 @@ public class RhinoFunctionResultChecker implements RhinoResultChecker {
     protected void assertResultValid(Object result, Context context) {
         String ecmaVersion = context.getLanguageVersion() == Context.VERSION_1_8 ? "ecma5" : "ecma3";
         assertEquals("Result of " + packageName + "." + functionName + "() is not what expected (" + ecmaVersion + ")!", expectedResult, result);
-        String report = packageName + "." + functionName + "() = " + Context.toString(result);
-        System.out.println(report);
     }
 
     private Object evaluateFunction(Context cx, Scriptable scope) {
diff --git a/js/js.tests/test/org/jetbrains/k2js/test/rhino/RhinoQUnitResultChecker.java b/js/js.tests/test/org/jetbrains/k2js/test/rhino/RhinoQUnitResultChecker.java
index 83eb4d4300f..aee7b3e50b7 100644
--- a/js/js.tests/test/org/jetbrains/k2js/test/rhino/RhinoQUnitResultChecker.java
+++ b/js/js.tests/test/org/jetbrains/k2js/test/rhino/RhinoQUnitResultChecker.java
@@ -16,36 +16,25 @@
 
 package org.jetbrains.k2js.test.rhino;
 
-import org.jetbrains.annotations.Nullable;
-import org.jetbrains.k2js.test.config.TestConfig;
-import org.jetbrains.k2js.translate.context.Namer;
 import org.mozilla.javascript.Context;
 import org.mozilla.javascript.NativeArray;
 import org.mozilla.javascript.Scriptable;
 
 import static org.jetbrains.k2js.test.rhino.RhinoUtils.flushSystemOut;
-import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.fail;
 
 /**
  * Runs the QUnit test cases in headless mode (without requiring a browser) and asserts they all PASS
  */
 public class RhinoQUnitResultChecker implements RhinoResultChecker {
-
-    private final String moduleId;
-
-    public RhinoQUnitResultChecker(@Nullable String moduleId) {
-        this.moduleId = moduleId;
-    }
-
     @Override
     public void runChecks(Context context, Scriptable scope) throws Exception {
         Object result = evaluateFunction(context, scope);
         flushSystemOut(context, scope);
-        assertResultValid(result, context);
+        assertResultValid(result);
     }
 
-    protected void assertResultValid(Object result, Context context) {
+    protected void assertResultValid(Object result) {
         if (result instanceof NativeArray) {
             NativeArray array = (NativeArray) result;
             StringBuffer buffer = new StringBuffer();
diff --git a/js/js.tests/test/org/jetbrains/k2js/test/semantics/StdLibQUnitTestSupport.java b/js/js.tests/test/org/jetbrains/k2js/test/semantics/StdLibQUnitTestSupport.java
index 787bc3deb0f..15503860fa2 100644
--- a/js/js.tests/test/org/jetbrains/k2js/test/semantics/StdLibQUnitTestSupport.java
+++ b/js/js.tests/test/org/jetbrains/k2js/test/semantics/StdLibQUnitTestSupport.java
@@ -41,8 +41,7 @@ public abstract class StdLibQUnitTestSupport extends StdLibTestBase {
     }
 
     protected void runQUnitTestCase(String path, EcmaVersion version, Map<String, Object> variables) throws Exception {
-        String moduleId = moduleIdFromOutputFile(path);
-        RhinoResultChecker checker = new RhinoQUnitResultChecker(moduleId);
+        RhinoResultChecker checker = new RhinoQUnitResultChecker();
         runRhinoTest(Lists.newArrayList(path),
                      checker, variables, version,
                      Lists.newArrayList(