/*
* Copyright (C) 2014 SCVNGR, Inc. d/b/a LevelUp
*
* 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.scvngr.levelup.core.util;
import android.content.res.Resources;
import android.test.mock.MockContext;
import android.test.mock.MockResources;
import android.test.suitebuilder.annotation.SmallTest;
import android.util.DisplayMetrics;
import junit.framework.TestCase;
/**
* Tests {@link com.scvngr.levelup.core.util.DeviceUtil}.
*/
public final class DeviceUtilTest extends TestCase {
@SmallTest
public void testGetDeviceDensityString() {
final MyMockContext context = new MyMockContext();
{
// Even currently unrecognized density values below medium should return 1x
context.resources.metrics.densityDpi = 100;
assertEquals(DeviceUtil.DENSITY_1X, DeviceUtil.getDeviceDensityString(context));
}
{
context.resources.metrics.densityDpi = DisplayMetrics.DENSITY_DEFAULT;
assertEquals(DeviceUtil.DENSITY_1X, DeviceUtil.getDeviceDensityString(context));
}
{
context.resources.metrics.densityDpi = DisplayMetrics.DENSITY_HIGH;
assertEquals(DeviceUtil.DENSITY_1_5X, DeviceUtil.getDeviceDensityString(context));
}
{
// We should return the medium density for anything less than high.
context.resources.metrics.densityDpi = DisplayMetrics.DENSITY_HIGH - 1;
assertEquals(DeviceUtil.DENSITY_1X, DeviceUtil.getDeviceDensityString(context));
}
{
context.resources.metrics.densityDpi = DisplayMetrics.DENSITY_LOW;
assertEquals(DeviceUtil.DENSITY_1X, DeviceUtil.getDeviceDensityString(context));
}
{
context.resources.metrics.densityDpi = DisplayMetrics.DENSITY_MEDIUM;
assertEquals(DeviceUtil.DENSITY_1X, DeviceUtil.getDeviceDensityString(context));
}
{
context.resources.metrics.densityDpi = DisplayMetrics.DENSITY_XHIGH;
assertEquals(DeviceUtil.DENSITY_2X, DeviceUtil.getDeviceDensityString(context));
}
{
// Even currently unrecognized density values above medium should return 2x
context.resources.metrics.densityDpi = 400;
assertEquals(DeviceUtil.DENSITY_2X, DeviceUtil.getDeviceDensityString(context));
}
}
/**
* {@link android.test.mock.MockContext} subclass to allow for changing the Resources {@link android.util.DisplayMetrics}
* values.
*/
private static final class MyMockContext extends MockContext {
private final MyMockResources resources = new MyMockResources();
@Override
public Resources getResources() {
return resources;
}
}
/**
* {@link android.test.mock.MockResources} subclass to allow for changing the {@link android.util.DisplayMetrics} values.
*/
private static final class MyMockResources extends MockResources {
private final DisplayMetrics metrics = new DisplayMetrics();
@Override
public DisplayMetrics getDisplayMetrics() {
return metrics;
}
}
}