| /* |
| * Copyright (C) 2021 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.cts_root.rollback.host; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| |
| import com.android.tradefed.device.ITestDevice; |
| |
| import com.google.common.truth.FailureMetadata; |
| import com.google.common.truth.Truth; |
| |
| public class WatchdogEventLogger { |
| private static final String[] ROLLBACK_EVENT_TYPES = { |
| "ROLLBACK_INITIATE", "ROLLBACK_BOOT_TRIGGERED", "ROLLBACK_SUCCESS"}; |
| private static final String[] ROLLBACK_EVENT_ATTRS = { |
| "logPackage", "rollbackReason", "failedPackageName"}; |
| private static final String PROP_PREFIX = "persist.sys.rollbacktest."; |
| |
| private ITestDevice mDevice; |
| |
| private void resetProperties(boolean enabled) throws Exception { |
| assertThat(mDevice.setProperty( |
| PROP_PREFIX + "enabled", String.valueOf(enabled))).isTrue(); |
| for (String type : ROLLBACK_EVENT_TYPES) { |
| String key = PROP_PREFIX + type; |
| assertThat(mDevice.setProperty(key, "")).isTrue(); |
| for (String attr : ROLLBACK_EVENT_ATTRS) { |
| assertThat(mDevice.setProperty(key + "." + attr, "")).isTrue(); |
| } |
| } |
| } |
| |
| public void start(ITestDevice device) throws Exception { |
| mDevice = device; |
| resetProperties(true); |
| } |
| |
| public void stop() throws Exception { |
| if (mDevice != null) { |
| resetProperties(false); |
| } |
| } |
| |
| private boolean matchProperty(String type, String attr, String expectedVal) throws Exception { |
| String key = PROP_PREFIX + type + "." + attr; |
| String val = mDevice.getProperty(key); |
| return expectedVal == null || expectedVal.equals(val); |
| } |
| |
| /** |
| * Returns whether a Watchdog event has occurred that matches the given criteria. |
| * |
| * Check the value of all non-null parameters against the list of Watchdog events that have |
| * occurred, and return {@code true} if an event exists which matches all criteria. |
| */ |
| public boolean watchdogEventOccurred(String type, String logPackage, |
| String rollbackReason, String failedPackageName) throws Exception { |
| return mDevice.getBooleanProperty(PROP_PREFIX + type, false) |
| && matchProperty(type, "logPackage", logPackage) |
| && matchProperty(type, "rollbackReason", rollbackReason) |
| && matchProperty(type, "failedPackageName", failedPackageName); |
| } |
| |
| static class Subject extends com.google.common.truth.Subject { |
| private final WatchdogEventLogger mActual; |
| |
| private Subject(FailureMetadata failureMetadata, WatchdogEventLogger subject) { |
| super(failureMetadata, subject); |
| mActual = subject; |
| } |
| |
| private static Factory<Subject, |
| WatchdogEventLogger> loggers() { |
| return Subject::new; |
| } |
| |
| static Subject assertThat(WatchdogEventLogger actual) { |
| return Truth.assertAbout(loggers()).that(actual); |
| } |
| |
| void eventOccurred(String type, String logPackage, String rollbackReason, |
| String failedPackageName) throws Exception { |
| check("watchdogEventOccurred(type=%s, logPackage=%s, rollbackReason=%s, " |
| + "failedPackageName=%s)", type, logPackage, rollbackReason, failedPackageName) |
| .that(mActual.watchdogEventOccurred(type, logPackage, rollbackReason, |
| failedPackageName)).isTrue(); |
| } |
| } |
| } |