| /* |
| * 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.assertEquals; |
| import static org.junit.Assert.fail; |
| |
| import android.annotation.NonNull; |
| import android.os.ConditionVariable; |
| import android.os.Handler; |
| import android.os.HandlerThread; |
| import android.os.Looper; |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| |
| import java.util.concurrent.Executor; |
| |
| 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"); |
| } |
| } |
| |
| /** |
| * Block until the given Serial Executor becomes idle, or until timeoutMs has passed. |
| */ |
| public static void waitForIdleSerialExecutor(@NonNull Executor executor, long timeoutMs) { |
| final ConditionVariable cv = new ConditionVariable(); |
| executor.execute(() -> cv.open()); |
| if (!cv.block(timeoutMs)) { |
| fail(executor.toString() + " did not become idle after " + timeoutMs + " ms"); |
| } |
| } |
| |
| // TODO : fetch the creator through reflection or something instead of passing it |
| public static <T extends Parcelable, C extends Parcelable.Creator<T>> |
| void assertParcelingIsLossless(T source, C creator) { |
| Parcel p = Parcel.obtain(); |
| source.writeToParcel(p, /* flags */ 0); |
| p.setDataPosition(0); |
| final byte[] marshalled = p.marshall(); |
| p = Parcel.obtain(); |
| p.unmarshall(marshalled, 0, marshalled.length); |
| p.setDataPosition(0); |
| T dest = creator.createFromParcel(p); |
| assertEquals(source, dest); |
| } |
| } |