vadimt
920cb92f80
Doing so by not letting any events between XXX:enter and XXX:exit events. This eliminates unnecessary permutations. Example: 2 threads with 3 enter-exit pairs each would have produced 924 permutations before this, now only 20. Bug: 120628042 Change-Id: Ia243d273a1d90202011679cc7520ea4c9e43918b Tests: All tests that use race condition framework
62 lines
2.0 KiB
Java
62 lines
2.0 KiB
Java
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3.util;
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/**
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* Event tracker for reliably reproducing race conditions in tests.
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* The app should call onEvent() for events that the test will try to reproduce in all possible
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* orders.
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*/
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public class RaceConditionTracker {
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public final static boolean ENTER = true;
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public final static boolean EXIT = false;
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static final String ENTER_POSTFIX = "enter";
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static final String EXIT_POSTFIX = "exit";
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public interface EventProcessor {
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void onEvent(String eventName);
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}
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private static EventProcessor sEventProcessor;
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static void setEventProcessor(EventProcessor eventProcessor) {
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sEventProcessor = eventProcessor;
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}
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public static void onEvent(String eventName) {
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if (sEventProcessor != null) sEventProcessor.onEvent(eventName);
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}
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public static void onEvent(String eventName, boolean isEnter) {
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if (sEventProcessor != null) {
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sEventProcessor.onEvent(enterExitEvt(eventName, isEnter));
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}
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}
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public static String enterExitEvt(String eventName, boolean isEnter) {
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return eventName + ":" + (isEnter ? ENTER_POSTFIX : EXIT_POSTFIX);
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}
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public static String enterEvt(String eventName) {
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return enterExitEvt(eventName, ENTER);
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}
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public static String exitEvt(String eventName) {
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return enterExitEvt(eventName, EXIT);
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}
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}
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