Two tests for resolved reference

idea/testData/resolve/ResolveClass.kt

@@ -0,0 +1,3 @@
+open class Test
+
+class SomeTest : <caret>Test()

idea/testData/resolve/ResolvePackageInProperty.kt

@@ -0,0 +1,5 @@
+package test1.test2
+
+class Some()
+
+val test : <caret>test1.test2.Some = Some()

idea/tests/org/jetbrains/jet/plugin/navigation/ImplementationTestUtils.java

@@ -21,17 +21,14 @@ import com.google.common.collect.Lists;
 import com.google.common.collect.Ordering;
 import com.intellij.codeInsight.navigation.GotoImplementationHandler;
 import com.intellij.codeInsight.navigation.GotoTargetHandler;
-import com.intellij.navigation.ItemPresentation;
-import com.intellij.navigation.NavigationItem;
 import com.intellij.openapi.editor.Editor;
 import com.intellij.psi.PsiElement;
 import com.intellij.psi.PsiFile;
 import com.intellij.testFramework.UsefulTestCase;
 import junit.framework.Assert;
 import org.jetbrains.annotations.Nullable;
-import org.jetbrains.jet.asJava.JetLightClass;
-import org.jetbrains.jet.plugin.presentation.JetLightClassListCellRenderer;
 import org.jetbrains.jet.testing.InTextDirectivesUtils;
+import org.jetbrains.jet.testing.ReferenceUtils;
 
 import java.util.Arrays;
 import java.util.Collections;
@@ -40,7 +37,7 @@ import java.util.List;
 /**
  * @author Nikolay Krasko
  */
-final class ImplementationTestUtils {
+public final class ImplementationTestUtils {
     private ImplementationTestUtils() {
     }
 
@@ -59,22 +56,7 @@ final class ImplementationTestUtils {
                 @Override
                 public String apply(@Nullable PsiElement element) {
                     Assert.assertNotNull(element);
-                    if (element instanceof JetLightClass) {
-                        JetLightClass jetLightClass = (JetLightClass) element;
-                        JetLightClassListCellRenderer renderer = new JetLightClassListCellRenderer();
-                        String elementText = renderer.getElementText(jetLightClass);
-                        String containerText = JetLightClassListCellRenderer.getContainerTextStatic(jetLightClass);
-                        return (containerText != null) ? containerText + "." + elementText : elementText;
-                    }
-
-                    Assert.assertTrue(element instanceof NavigationItem);
-                    ItemPresentation presentation = ((NavigationItem) element).getPresentation();
-
-                    Assert.assertNotNull(presentation);
-
-                    String presentableText = presentation.getPresentableText();
-                    String locationString = presentation.getLocationString();
-                    return locationString != null ? (locationString + "." + presentableText) : presentableText;
+                    return ReferenceUtils.renderAsGotoImplementation(element);
                 }
             });
 

idea/tests/org/jetbrains/jet/resolve/ResolveBaseTest.java

@@ -22,7 +22,10 @@ import com.intellij.psi.PsiPolyVariantReference;
 import com.intellij.psi.PsiReference;
 import com.intellij.psi.ResolveResult;
 import com.intellij.testFramework.LightCodeInsightTestCase;
+import junit.framework.Assert;
+import org.jetbrains.annotations.Nullable;
 import org.jetbrains.jet.plugin.PluginTestCaseBase;
+import org.jetbrains.jet.testing.ReferenceUtils;
 
 import java.io.File;
 
@@ -34,10 +37,44 @@ public class ResolveBaseTest extends LightCodeInsightTestCase {
         doMultiResolveTest();
     }
 
+    public void testResolveClass() throws Exception {
+        doSingleResolveTest("(<root>).Test");
+    }
+
+    public void testResolvePackageInProperty() throws Exception {
+        doSingleResolveTest("test1");
+    }
+
     public void testSeveralOverrides() throws Exception {
         doMultiResolveTest();
     }
 
+    protected void doSingleResolveTest(@Nullable String referenceToString) throws Exception {
+        final String testName = getTestName(false);
+        configureByFile(testName + ".kt");
+
+        int offset = getEditor().getCaretModel().getOffset();
+        final PsiReference psiReference = getFile().findReferenceAt(offset);
+        if (psiReference != null) {
+            PsiElement resolvedTo = psiReference.resolve();
+            if (resolvedTo != null) {
+                String resolvedToElementStr = ReferenceUtils.renderAsGotoImplementation(resolvedTo);
+                String notEqualMessage = String.format("Found reference to '%s', but '%s' was expected", resolvedToElementStr,
+                                              referenceToString != null ? referenceToString : "<null>");
+                assertEquals(notEqualMessage, referenceToString, resolvedToElementStr);
+            }
+            else {
+                Assert.assertNull(
+                        String.format("Element %s wasn't resolved to anything, but %s was expected", psiReference, referenceToString),
+                        referenceToString);
+            }
+        }
+        else {
+            Assert.assertNull(String.format("No reference found at offset: %s, but one resolved to %s was expected", offset, referenceToString),
+                              referenceToString);
+        }
+    }
+
     protected void doMultiResolveTest() throws Exception {
         final String testName = getTestName(false);
         configureByFile(testName + ".kt");

idea/tests/org/jetbrains/jet/testing/ReferenceUtils.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2010-2012 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.jet.testing;
+
+import com.intellij.navigation.ItemPresentation;
+import com.intellij.navigation.NavigationItem;
+import com.intellij.psi.PsiElement;
+import junit.framework.Assert;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.jet.asJava.JetLightClass;
+import org.jetbrains.jet.plugin.presentation.JetLightClassListCellRenderer;
+
+public final class ReferenceUtils {
+    private ReferenceUtils() {
+    }
+
+    public static String renderAsGotoImplementation(@NotNull PsiElement element) {
+        if (element instanceof JetLightClass) {
+            JetLightClass jetLightClass = (JetLightClass) element;
+            JetLightClassListCellRenderer renderer = new JetLightClassListCellRenderer();
+            String elementText = renderer.getElementText(jetLightClass);
+            String containerText = JetLightClassListCellRenderer.getContainerTextStatic(jetLightClass);
+            return (containerText != null) ? containerText + "." + elementText : elementText;
+        }
+
+        Assert.assertTrue(element instanceof NavigationItem);
+        ItemPresentation presentation = ((NavigationItem) element).getPresentation();
+
+        if (presentation == null) {
+            return element.getText();
+        }
+
+        String presentableText = presentation.getPresentableText();
+        String locationString = presentation.getLocationString();
+        return locationString != null ? (locationString + "." + presentableText) : presentableText;
+    }
+}