| /* |
| * Copyright (C) 2014 The Android Open Source Project |
| * |
| * 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.android.tools.idea.wizard; |
| |
| import com.android.tools.idea.npw.AsyncValidator; |
| import com.intellij.idea.IdeaTestApplication; |
| import com.intellij.openapi.application.ApplicationManager; |
| import com.intellij.testFramework.PlatformTestCase; |
| import junit.framework.TestCase; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * Test asynchronous validator class. |
| */ |
| public final class AsyncValidatorTest extends TestCase { |
| private static final int TIMEOUT = 1000; // ms |
| |
| @SuppressWarnings("SynchronizationOnLocalVariableOrMethodParameter") |
| private static void assertResult(Integer[] val, Integer expected) throws InterruptedException { |
| synchronized (val) { |
| final long start = System.currentTimeMillis(); |
| while (val[0] == null) { |
| val.wait(TIMEOUT); |
| if ((System.currentTimeMillis() - start) > TIMEOUT) { |
| fail("Validator hang"); |
| } |
| } |
| assertEquals(expected, val[0]); |
| } |
| } |
| |
| @Override |
| public void setUp() throws Exception { |
| super.setUp(); |
| // This should happen on some other thread - it will become the AWT event queue thread. |
| Future<IdeaTestApplication> application = Executors.newSingleThreadExecutor(). |
| submit(new Callable<IdeaTestApplication>() { |
| @Override |
| public IdeaTestApplication call() throws Exception { |
| PlatformTestCase.autodetectPlatformPrefix(); |
| return IdeaTestApplication.getInstance(null); |
| } |
| }); |
| application.get(30, TimeUnit.SECONDS); // Wait for the application instantiation |
| } |
| |
| public void testBasicValidation() throws InterruptedException { |
| final Integer[] val = { null }; |
| AsyncValidator<Integer> validator = new AsyncValidator<Integer>(ApplicationManager.getApplication()) { |
| @Override |
| protected void showValidationResult(Integer result) { |
| synchronized (val) { |
| val[0] = result; |
| val.notifyAll(); |
| } |
| } |
| |
| @NotNull |
| @Override |
| protected Integer validate() { |
| return 3; |
| } |
| }; |
| validator.invalidate(); |
| assertResult(val, 3); |
| } |
| |
| @SuppressWarnings("BusyWait") |
| public void testNoSpuriousResults() throws InterruptedException { |
| final int EXPECTED_RESULT = 1000; |
| |
| final Integer[] output = { null }; |
| final int[] counter = {0}; |
| |
| AsyncValidator<Integer> validator = new AsyncValidator<Integer>(ApplicationManager.getApplication()) { |
| @Override |
| protected void showValidationResult(Integer result) { |
| synchronized (output) { |
| if (output[0] == null) { |
| output[0] = result; |
| } |
| output.notifyAll(); |
| } |
| } |
| |
| @NotNull |
| @Override |
| protected Integer validate() { |
| try { |
| Thread.sleep(100); |
| return counter[0]; |
| } |
| catch (InterruptedException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| }; |
| for (counter[0] = 0; counter[0] < EXPECTED_RESULT; counter[0]++) { |
| validator.invalidate(); |
| Thread.sleep(2); |
| } |
| assertResult(output, EXPECTED_RESULT); // Validation happens after loop exit - hence, 100 and not 99 which is in-loop max |
| } |
| } |