| /* |
| * Copyright (C) 2019 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.content.Context; |
| import android.provider.DeviceConfig; |
| |
| import androidx.annotation.NonNull; |
| import androidx.annotation.Nullable; |
| |
| /** |
| * JUnit rule used to set a {@link DeviceConfig} preference before the test is run. |
| * |
| * <p>It stores the current value before the test, changes it (if necessary), then restores it after |
| * the test (if necessary). |
| */ |
| public class DeviceConfigStateChangerRule extends StateChangerRule<String> { |
| |
| /** |
| * Default constructor. |
| * |
| * @param context context used to retrieve the {@link DeviceConfig} provider. |
| * @param namespace {@code DeviceConfig} namespace. |
| * @param key preference key. |
| * @param value value to be set before the test is run. |
| */ |
| public DeviceConfigStateChangerRule(@NonNull Context context, @NonNull String namespace, |
| @NonNull String key, @Nullable String value) { |
| this(new DeviceConfigStateManager(context, namespace, key), value); |
| } |
| |
| /** |
| * Alternative constructor used when then test case already defines a |
| * {@link DeviceConfigStateManager}. |
| */ |
| public DeviceConfigStateChangerRule(@NonNull DeviceConfigStateManager dcsm, |
| @Nullable String value) { |
| super(dcsm, value); |
| } |
| } |