uk.gov.gchq.koryphe.util.DateUtilTest.java Source code

Introduction

Here is the source code for uk.gov.gchq.koryphe.util.DateUtilTest.java

Source

/*
 * Copyright 2016-2018 Crown Copyright
 *
 * 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 uk.gov.gchq.koryphe.util;

import org.apache.commons.lang3.time.DateUtils;
import org.junit.Test;

import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

public class DateUtilTest {

    @Test
    public void shouldParseTimestampInMilliseconds() throws IOException, ParseException {
        // Given
        final long timestamp = System.currentTimeMillis();

        // When
        final Long result = DateUtil.parseTime(Long.toString(timestamp));

        // Then
        assertEquals(timestamp, (long) result);
    }

    @Test
    public void shouldParseTimestampInMillisecondsWithTimeZone() throws IOException, ParseException {
        // Given
        final long timestamp = System.currentTimeMillis();

        // When
        final Long result = DateUtil.parseTime(Long.toString(timestamp), TimeZone.getTimeZone("Etc/GMT+6"));

        // Then
        assertEquals(timestamp, (long) result);
    }

    @Test
    public void shouldParseDates() throws IOException, ParseException {
        // When / Then
        assertDate("2017-01", "2017-01", "yyyy-MM");
        assertDate("2017-01", "2017 01", "yyyy-MM");
        assertDate("2017-01", "2017/01", "yyyy-MM");
        assertDate("2017-01", "2017.01", "yyyy-MM");
        assertDate("2017-01-02", "2017-01-02", "yyyy-MM-dd");
        assertDate("2017-01-02", "2017/01.02", "yyyy-MM-dd");
        assertDate("2017-01-02", "2017-01 02", "yyyy-MM-dd");
        assertDate("2017-01-02 01", "2017-01-02 01", "yyyy-MM-dd HH");
        assertDate("2017-01-02 01", "2017.01.02/01", "yyyy-MM-dd HH");
        assertDate("2017-01-02 01:02", "2017.01.02 01:02", "yyyy-MM-dd HH:mm");
        assertDate("2017-01-02 01:02", "2017.01.02 01 02", "yyyy-MM-dd HH:mm");
        assertDate("2017-01-02 01:02", "2017/01/02 01 02", "yyyy-MM-dd HH:mm");
        assertDate("2017-01-02 01:02:30", "2017/01/02 01:02:30", "yyyy-MM-dd HH:mm:ss");
        assertDate("2017-01-02 01:02:30", "2017-01-02-01:02:30", "yyyy-MM-dd HH:mm:ss");
        assertDate("2017-01-02 01:02:30.123", "2017-01-02-01:02:30.123", "yyyy-MM-dd HH:mm:ss.SSS");
    }

    @Test
    public void shouldParseDatesTimeZone() throws IOException, ParseException {
        // Given
        final String dateString = "2017-01-02 01:02:30.123";
        final String timeZone = "Etc/GMT+6";

        // When
        final Date result = DateUtil.parse(dateString, TimeZone.getTimeZone(timeZone));

        // Then
        final SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
        sdf.setTimeZone(TimeZone.getTimeZone(timeZone));
        final Date expected = sdf.parse(dateString);
        assertEquals(expected, result);
    }

    @Test
    public void shouldNotParseInvalidDate() throws IOException, ParseException {
        // When / Then
        try {
            DateUtil.parse("2017/1");
            fail("Exception expected");
        } catch (final IllegalArgumentException e) {
            assertTrue(e.getMessage(),
                    e.getMessage().contains("The provided date string 2017/1 could not be parsed"));
        }
    }

    private void assertDate(final String expected, final String testDate, final String format)
            throws ParseException {
        assertEquals("Failed to parse date: " + testDate,
                DateUtils.parseDate(expected, Locale.getDefault(), format), DateUtil.parse(testDate));
    }
}