| /* |
| * Copyright (C) 2018 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.compatibility.common.util; |
| |
| import android.util.Log; |
| |
| import androidx.annotation.NonNull; |
| import androidx.test.InstrumentationRegistry; |
| |
| import org.junit.rules.TestRule; |
| import org.junit.runner.Description; |
| import org.junit.runners.model.Statement; |
| |
| /** |
| * Custom JUnit4 rule that does not run a test case if the device does not have a given service. |
| */ |
| public class RequiredServiceRule implements TestRule { |
| private static final String TAG = "RequiredServiceRule"; |
| |
| private final String mService; |
| private final boolean mHasService; |
| |
| /** |
| * Creates a rule for the given service. |
| */ |
| public RequiredServiceRule(@NonNull String service) { |
| mService = service; |
| mHasService = hasService(service); |
| } |
| |
| @Override |
| public Statement apply(@NonNull Statement base, @NonNull Description description) { |
| return new Statement() { |
| |
| @Override |
| public void evaluate() throws Throwable { |
| if (!mHasService) { |
| Log.d(TAG, "skipping " |
| + description.getClassName() + "#" + description.getMethodName() |
| + " because device does not have service '" + mService + "'"); |
| return; |
| } |
| base.evaluate(); |
| } |
| }; |
| } |
| |
| /** |
| * Checks if the device has the given service. |
| */ |
| public static boolean hasService(@NonNull String service) { |
| // TODO: ideally should call SystemServiceManager directly, but we would need to open |
| // some @Testing APIs for that. |
| String command = "service check " + service; |
| try { |
| String commandOutput = SystemUtil.runShellCommand( |
| InstrumentationRegistry.getInstrumentation(), command); |
| return !commandOutput.contains("not found"); |
| } catch (Exception e) { |
| Log.w(TAG, "Exception running '" + command + "': " + e); |
| return false; |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return "RequiredServiceRule[" + mService + "]"; |
| } |
| } |