1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.compatibility.common.util; 18 19 import android.support.test.InstrumentationRegistry; 20 import android.util.Log; 21 22 import org.junit.rules.TestRule; 23 import org.junit.runner.Description; 24 import org.junit.runners.model.Statement; 25 26 /** 27 * Custom JUnit4 rule that does not run a test case if the device does not have a given feature. 28 */ 29 public class RequiredFeatureRule implements TestRule { 30 private static final String TAG = "RequiredFeatureRule"; 31 32 private final String mFeature; 33 private final boolean mHasFeature; 34 35 public RequiredFeatureRule(String feature) { 36 mFeature = feature; 37 mHasFeature = hasFeature(feature); 38 } 39 40 @Override 41 public Statement apply(Statement base, Description description) { 42 return new Statement() { 43 44 @Override 45 public void evaluate() throws Throwable { 46 if (!mHasFeature) { 47 Log.d(TAG, "skipping " 48 + description.getClassName() + "#" + description.getMethodName() 49 + " because device does not have feature '" + mFeature + "'"); 50 return; 51 } 52 base.evaluate(); 53 } 54 }; 55 } 56 57 public static boolean hasFeature(String feature) { 58 return InstrumentationRegistry.getContext().getPackageManager().hasSystemFeature(feature); 59 } 60 } 61
