provide mock implementation of DumbService

platform/core-impl/src/com/intellij/core/CoreEnvironment.java

@@ -30,6 +30,7 @@ import com.intellij.openapi.extensions.ExtensionsArea;
 import com.intellij.openapi.fileEditor.FileDocumentManager;
 import com.intellij.openapi.fileTypes.FileType;
 import com.intellij.openapi.fileTypes.FileTypeRegistry;
+import com.intellij.openapi.project.DumbService;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.util.Disposer;
 import com.intellij.openapi.util.Getter;
@@ -118,6 +119,7 @@ public class CoreEnvironment {
     myProject.registerService(CachedValuesManager.class, new CachedValuesManagerImpl(myProject, new PsiCachedValuesFactory(myPsiManager)));
     myProject.registerService(PsiDirectoryFactory.class, new PsiDirectoryFactoryImpl(myPsiManager));
     myProject.registerService(ProjectScopeBuilder.class, new CoreProjectScopeBuilder(myProject, myFileIndexFacade));
+    myProject.registerService(DumbService.class, new MockDumbService(myProject));
   }
 
   public Project getProject() {

platform/core-impl/src/com/intellij/mock/MockDumbService.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright 2000-2011 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 com.intellij.mock;
+
+import com.intellij.openapi.Disposable;
+import com.intellij.openapi.project.DumbService;
+import com.intellij.openapi.project.Project;
+import org.jetbrains.annotations.NotNull;
+
+import javax.swing.*;
+
+/**
+ * @author yole
+ */
+public class MockDumbService extends DumbService {
+  private final Project myProject;
+
+  public MockDumbService(Project project) {
+    myProject = project;
+  }
+
+  @Override
+  public boolean isDumb() {
+    return false;
+  }
+
+  @Override
+  public void runWhenSmart(Runnable runnable) {
+    runnable.run();
+  }
+
+  @Override
+  public void waitForSmartMode() {
+  }
+
+  @Override
+  public JComponent wrapGently(@NotNull JComponent dumbUnawareContent, @NotNull Disposable parentDisposable) {
+    throw new UnsupportedOperationException();
+  }
+
+  @Override
+  public void showDumbModeNotification(String message) {
+    throw new UnsupportedOperationException();
+  }
+
+  @Override
+  public Project getProject() {
+    return myProject;
+  }
+}