core/tests/coretests/src/android/text/format/DateUtilsTest.java

/*
 * Copyright (C) 2012 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 android.text.format;

import android.content.res.Configuration;
import android.content.res.Resources;
import android.os.LocaleList;
import android.support.test.filters.SmallTest;

import junit.framework.TestCase;

import java.util.Locale;

public class DateUtilsTest extends TestCase {

    private static final LocaleList LOCALE_LIST_US = new LocaleList(Locale.US);
    private LocaleList mOriginalLocales;

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        mOriginalLocales = Resources.getSystem().getConfiguration().getLocales();
        setLocales(LOCALE_LIST_US);
    }

    @Override
    protected void tearDown() throws Exception {
        setLocales(mOriginalLocales);
        super.tearDown();
    }

    private void setLocales(LocaleList locales) {
        final Resources systemResources = Resources.getSystem();
        final Configuration config = new Configuration(systemResources.getConfiguration());
        config.setLocales(locales);
        // This is not very safe to call, but since DateUtils.formatDuration() is a static method
        // (it gets its format strings from the system resources), we can't pass a modified Context
        // to it.
        systemResources.updateConfiguration(config, null);
    }

    @SmallTest
    public void test_formatDuration_seconds() throws Exception {
        assertEquals("0 seconds", DateUtils.formatDuration(0));
        assertEquals("0 seconds", DateUtils.formatDuration(1));
        assertEquals("0 seconds", DateUtils.formatDuration(499));
        assertEquals("1 second", DateUtils.formatDuration(500));
        assertEquals("1 second", DateUtils.formatDuration(1000));
        assertEquals("2 seconds", DateUtils.formatDuration(1500));
    }

    @SmallTest
    public void test_formatDuration_Minutes() throws Exception {
        assertEquals("59 seconds", DateUtils.formatDuration(59000));
        assertEquals("60 seconds", DateUtils.formatDuration(59500));
        assertEquals("1 minute", DateUtils.formatDuration(60000));
        assertEquals("2 minutes", DateUtils.formatDuration(120000));
    }

    @SmallTest
    public void test_formatDuration_Hours() throws Exception {
        assertEquals("59 minutes", DateUtils.formatDuration(3540000));
        assertEquals("1 hour", DateUtils.formatDuration(3600000));
        assertEquals("48 hours", DateUtils.formatDuration(172800000));
    }
}