| /* |
| * Copyright (C) 2017 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.internal.util; |
| |
| import static org.junit.Assert.fail; |
| |
| import android.os.ConditionVariable; |
| import android.os.Handler; |
| import android.os.HandlerThread; |
| import android.os.Looper; |
| |
| public final class TestUtils { |
| private TestUtils() { } |
| |
| /** |
| * Block until the given Handler thread becomes idle, or until timeoutMs has passed. |
| */ |
| public static void waitForIdleHandler(HandlerThread handlerThread, long timeoutMs) { |
| waitForIdleHandler(handlerThread.getThreadHandler(), timeoutMs); |
| } |
| |
| /** |
| * Block until the given Looper becomes idle, or until timeoutMs has passed. |
| */ |
| public static void waitForIdleLooper(Looper looper, long timeoutMs) { |
| waitForIdleHandler(new Handler(looper), timeoutMs); |
| } |
| |
| /** |
| * Block until the given Handler becomes idle, or until timeoutMs has passed. |
| */ |
| public static void waitForIdleHandler(Handler handler, long timeoutMs) { |
| final ConditionVariable cv = new ConditionVariable(); |
| handler.post(() -> cv.open()); |
| if (!cv.block(timeoutMs)) { |
| fail(handler.toString() + " did not become idle after " + timeoutMs + " ms"); |
| } |
| } |
| } |