/*
* Copyright (C) 2012, Katy Hilgenberg.
* Special acknowledgments to: Knowledge & Data Engineering Group, University of Kassel (http://www.kde.cs.uni-kassel.de).
* Contact: sdcf@cs.uni-kassel.de
*
* This file is part of the SDCFramework (Sensor Data Collection Framework) project.
*
* The SDCFramework is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The SDCFramework is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the SDCFramework. If not, see <http://www.gnu.org/licenses/>.
*/
package de.unikassel.android.sdcframework.devices.tests;
import java.util.Iterator;
import java.util.Queue;
import de.unikassel.android.sdcframework.data.Sample;
import de.unikassel.android.sdcframework.devices.VirtualSensorDevice;
import de.unikassel.android.sdcframework.devices.facade.SensorDeviceIdentifier;
import de.unikassel.android.sdcframework.provider.facade.ContentProviderData;
import de.unikassel.android.sdcframework.provider.test.AbstractProviderForTest;
import de.unikassel.android.sdcframework.provider.test.ContentProviderDataForTest;
import de.unikassel.android.sdcframework.util.tests.SampleEventObserverForTest;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.database.Cursor;
import android.test.ProviderTestCase2;
/**
* Test for the content provider device scanner base type.
*
* @author Katy Hilgenberg
*
*/
public class TestContentProviderDeviceScanner
extends ProviderTestCase2< AbstractProviderForTest >
{
/**
* the mock content resolver
*/
private ContentResolver resolver;
/**
* Constructor
*/
public TestContentProviderDeviceScanner()
{
super( AbstractProviderForTest.class,
new ContentProviderDataForTest().getAuthority() );
}
/*
* (non-Javadoc)
*
* @see android.test.ProviderTestCase2#setUp()
*/
@Override
protected void setUp() throws Exception
{
super.setUp();
resolver = getMockContext().getContentResolver();
emptyDatabase();
}
/**
* Method to empty the database
*/
private void emptyDatabase()
{
AbstractProviderForTest provider = getProvider();
provider.getDbHelper().getWritableDatabase().delete(
provider.getProviderData().getDBTableName(), null, null );
}
/*
* (non-Javadoc)
*
* @see android.test.AndroidTestCase#tearDown()
*/
@Override
public void tearDown() throws Exception
{
super.tearDown();
}
/**
* Test method for
* {@link de.unikassel.android.sdcframework.devices.ContentProviderDeviceScanner#start(android.content.Context)}
* and *
* {@link de.unikassel.android.sdcframework.devices.ContentProviderDeviceScanner#stop(android.content.Context)}
* and
* {@link de.unikassel.android.sdcframework.devices.ContentProviderDeviceScanner#doDeleteGatheredData(android.content.ContentResolver, java.util.Queue)}
* .
*/
public final void testContentProviderDeviceScanner()
{
AbstractProviderForTest provider = getProvider();
ContentProviderData providerData = provider.getProviderData();
// create a device with samples with time stamp
VirtualSensorDevice device =
new VirtualSensorDevice( SensorDeviceIdentifier.Unknown );
device.getConfiguration().setEnabled( true );
// create a sample observer
SampleEventObserverForTest observer =
new SampleEventObserverForTest();
// create an enabled scanner
ContentProviderDeviceScannerForTest scanner =
new ContentProviderDeviceScannerForTest( resolver,
providerData.getContentUri() );
scanner.registerEventObserver( observer );
scanner.setDevice( device, getContext() );
// test if scanner was started as expected
assertTrue( "Expected scanner running", scanner.isEnabled() );
// send sample to data sink
ContentValues values = new ContentValues();
Long ts1 = System.currentTimeMillis();
values.put( ContentProviderData.TIMESTAMP, ts1.toString() );
resolver.insert( providerData.getContentUri(), values );
values = new ContentValues();
Long ts2 = ts1 + 1;
values.put( ContentProviderData.TIMESTAMP, ts2.toString() );
resolver.insert( providerData.getContentUri(), values );
// trigger notification manually as the mock content resolver does stub out
// the change notification
// (compare
// http://developer.android.com/guide/topics/testing/testing_android.html#MockObjectClasses)
Queue< Long > rowIds = scanner.doNotifyForSamples( resolver );
// test for samples taken
int sampleCount = observer.observedEvents.size();
assertEquals( "Expected more samples taken", 2, sampleCount );
Iterator< Sample > it = observer.observedEvents.iterator();
Sample sample = it.next();
Sample lastSample = it.next();
long timediff = lastSample.getTimeStamp() - sample.getTimeStamp();
assertTrue( "Expected different timestamps", timediff > 0 );
assertEquals( "Expected right priority set",
device.getConfiguration().getSamplePriority().ordinal(),
sample.getPriority() );
assertEquals( "Expected right priority set",
device.getConfiguration().getSamplePriority().ordinal(),
lastSample.getPriority() );
// test for deletion of gathered data
scanner.doDeleteGatheredData( resolver, rowIds );
Cursor cursor =
resolver.query( providerData.getContentUri(), null, null, null,
null );
assertEquals( "Expected 0 samples in database", 0, cursor.getCount() );
cursor.close();
// stop scanner
scanner.setDevice( null, getMockContext() );
assertFalse( "Expected scanner not running", scanner.isEnabled() );
}
}