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/*
* Copyright (C) 2015 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.mtp;
import android.content.Context;
import android.hardware.usb.UsbDevice;
import android.hardware.usb.UsbDeviceConnection;
import android.hardware.usb.UsbManager;
import android.test.InstrumentationTestCase;
import java.util.HashMap;
public class MtpManagerTest extends InstrumentationTestCase {
@RealDeviceTest
public void testBasic() throws Exception {
final UsbDevice usbDevice = findDevice();
final MtpManager manager = new MtpManager(getContext());
manager.openDevice(usbDevice.getDeviceId());
waitForStorages(manager, usbDevice.getDeviceId());
manager.closeDevice(usbDevice.getDeviceId());
}
private UsbDevice findDevice() throws InterruptedException {
final UsbManager usbManager = getContext().getSystemService(UsbManager.class);
while (true) {
final HashMap<String,UsbDevice> devices = usbManager.getDeviceList();
if (devices.size() == 0) {
show("Wait for devices.");
Thread.sleep(1000);
continue;
}
final UsbDevice device = devices.values().iterator().next();
final UsbDeviceConnection connection = usbManager.openDevice(device);
for (int i = 0; i < device.getInterfaceCount(); i++) {
// Since the test runs real environment, we need to call claim interface with
// force = true to rob interfaces from other applications.
connection.claimInterface(device.getInterface(i), true);
connection.releaseInterface(device.getInterface(i));
}
connection.close();
return device;
}
}
private void waitForStorages(MtpManager manager, int deviceId) throws Exception {
while (true) {
if (manager.getRoots(deviceId).length == 0) {
show("Wait for storages.");
Thread.sleep(1000);
continue;
}
return;
}
}
private void show(String message) {
if (!(getInstrumentation() instanceof TestResultInstrumentation)) {
return;
}
((TestResultInstrumentation) getInstrumentation()).show(message);
}
private Context getContext() {
return getInstrumentation().getContext();
}
}