| /* |
| * 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.compatibility.common.util; |
| |
| import static org.junit.Assume.assumeTrue; |
| |
| import android.util.Log; |
| |
| import androidx.test.InstrumentationRegistry; |
| |
| import org.junit.AssumptionViolatedException; |
| 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 feature. |
| * |
| * <p>The tests are skipped by throwing a {@link AssumptionViolatedException}. CTS test runners |
| * will report this as a {@code ASSUMPTION_FAILED}. |
| */ |
| public class RequiredFeatureRule implements TestRule { |
| private static final String TAG = "RequiredFeatureRule"; |
| |
| private final String mFeature; |
| private final boolean mHasFeature; |
| |
| public RequiredFeatureRule(String feature) { |
| mFeature = feature; |
| mHasFeature = hasFeature(feature); |
| } |
| |
| @Override |
| public Statement apply(Statement base, Description description) { |
| return new Statement() { |
| |
| @Override |
| public void evaluate() throws Throwable { |
| if (!mHasFeature) { |
| Log.d(TAG, "skipping " |
| + description.getClassName() + "#" + description.getMethodName() |
| + " because device does not have feature '" + mFeature + "'"); |
| assumeTrue("Device does not have feature '" + mFeature + "'", |
| mHasFeature); |
| return; |
| } |
| base.evaluate(); |
| } |
| }; |
| } |
| |
| @Override |
| public String toString() { |
| return "RequiredFeatureRule[" + mFeature + "]"; |
| } |
| |
| public static boolean hasFeature(String feature) { |
| return InstrumentationRegistry.getContext().getPackageManager().hasSystemFeature(feature); |
| } |
| } |