libs/install/src/com/android/cts/install/lib/host/InstallUtilsHost.java

/*
 * Copyright (C) 2020 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.cts.install.lib.host;

import static com.google.common.truth.Truth.assertWithMessage;

import com.android.tradefed.testtype.junit4.BaseHostJUnit4Test;
import com.android.tradefed.util.CommandResult;
import com.android.tradefed.util.CommandStatus;

/**
 * Utilities to facilitate installation in tests on host side.
 */
public class InstallUtilsHost {

    private BaseHostJUnit4Test mTest;

    public InstallUtilsHost(BaseHostJUnit4Test test) {
        mTest = test;
    }

    /**
     * Return {@code true} if and only if device supports updating apex.
     */
    public boolean isApexUpdateSupported() throws Exception {
        return mTest.getDevice().getBooleanProperty("ro.apex.updatable", false);
    }

    /**
     * Return {@code true} if and only if device supports file system checkpoint.
     */
    public boolean isCheckpointSupported() throws Exception {
        CommandResult result = mTest.getDevice().executeShellV2Command("sm supports-checkpoint");
        assertWithMessage("Failed to check if fs checkpointing is supported : %s",
                result.getStderr()).that(result.getStatus()).isEqualTo(CommandStatus.SUCCESS);
        return "true".equals(result.getStdout().trim());
    }
}