tests/tests/provider/src/android/provider/cts/BlockedNumberTestUtils.java

/*
 * Copyright (C) 2016 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 android.provider.cts;

import android.app.UiAutomation;
import android.os.ParcelFileDescriptor;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.charset.StandardCharsets;

/**
 * Utility methods for blocked number cts tests.
 */
public class BlockedNumberTestUtils {
    static void setDefaultSmsApp(boolean setToSmsApp, String packageName, UiAutomation uiAutomation)
            throws Exception {
        String command = String.format(
                "appops set %s WRITE_SMS %s", packageName, setToSmsApp ? "allow" : "default");
        executeShellCommand(uiAutomation, command);
    }

    static String executeShellCommand(UiAutomation uiAutomation, String command)
            throws IOException {
        ParcelFileDescriptor pfd = uiAutomation.executeShellCommand(command.toString());
        BufferedReader br = null;
        try (InputStream in = new FileInputStream(pfd.getFileDescriptor());) {
            br = new BufferedReader(new InputStreamReader(in, StandardCharsets.UTF_8));
            String str = null;
            StringBuilder out = new StringBuilder();
            while ((str = br.readLine()) != null) {
                out.append(str);
            }
            return out.toString();
        } finally {
            if (br != null) {
                br.close();
            }
        }
    }
}