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/*
* 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.launcher3.util.rule;
import android.content.ComponentName;
import android.content.pm.ActivityInfo;
import android.os.ParcelFileDescriptor;
import android.support.test.InstrumentationRegistry;
import org.junit.rules.TestRule;
import org.junit.runner.Description;
import org.junit.runners.model.Statement;
import java.io.FileInputStream;
import java.io.IOException;
/**
* Test rule which executes a shell command at the start of the test.
*/
public class ShellCommandRule implements TestRule {
private final String mCmd;
public ShellCommandRule(String cmd) {
mCmd = cmd;
}
@Override
public Statement apply(Statement base, Description description) {
return new MyStatement(base, mCmd);
}
public static void runShellCommand(String command) throws IOException {
ParcelFileDescriptor pfd = InstrumentationRegistry.getInstrumentation().getUiAutomation()
.executeShellCommand(command);
// Read the input stream fully.
FileInputStream fis = new ParcelFileDescriptor.AutoCloseInputStream(pfd);
while (fis.read() != -1);
fis.close();
}
private static class MyStatement extends Statement {
private final Statement mBase;
private final String mCmd;
public MyStatement(Statement base, String cmd) {
mBase = base;
mCmd = cmd;
}
@Override
public void evaluate() throws Throwable {
runShellCommand(mCmd);
mBase.evaluate();
}
}
/**
* Grants the launcher permission to bind widgets.
*/
public static ShellCommandRule grandWidgetBind() {
return new ShellCommandRule("appwidget grantbind --package "
+ InstrumentationRegistry.getTargetContext().getPackageName());
}
/**
* Sets the target launcher as default launcher.
*/
public static ShellCommandRule setDefaultLauncher() {
ActivityInfo launcher = InstrumentationRegistry.getTargetContext().getPackageManager()
.queryIntentActivities(LauncherActivityRule.getHomeIntent(), 0).get(0)
.activityInfo;
return new ShellCommandRule("cmd package set-home-activity " +
new ComponentName(launcher.packageName, launcher.name).flattenToString());
}
}
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