AgeTest.java

/*
 * The contents of this file are subject to the OpenMRS Public License
 * Version 1.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://license.openmrs.org
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 * License for the specific language governing rights and limitations
 * under the License.
 *
 * Copyright (C) OpenMRS, LLC.  All Rights Reserved.
 */

package org.openmrs.module.reporting.common;

import org.junit.Test;

import java.util.Date;

import static org.hamcrest.Matchers.not;
import static org.hamcrest.core.Is.is;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertThat;

public class AgeTest {

    @Test
    public void testEquals() throws Exception {
        Date d1 = DateUtil.parseYmd("2001-02-03");
        Date d2 = DateUtil.parseYmd("2002-03-04");
        Date d3 = DateUtil.parseYmd("2014-01-19");
        Date d4 = DateUtil.parseYmd("2014-01-20");

        Age age = new Age(d1, d4);
        assertThat(age, is(new Age(d1, d4)));
        assertThat(age, is(not(new Age(d2, d4))));
        assertThat(age, is(not(new Age(d1, d3))));
        assertThat(age, is(not(new Age(d2, d3))));
        assertThat(age, is(not(new Age(null, null))));
        assertFalse(age.equals(null)); // should not throw an exception
    }

	@Test
	public void testGetFullMonths() throws Exception {
		Age age = new Age(DateUtil.getDateTime(1965,3,23), DateUtil.getDateTime(2014,3,6));
		assertThat(age.getFullMonths(), is(587));
	}

	@Test
	public void testGetFullYears() throws Exception {
		Age age = new Age(DateUtil.getDateTime(1965,3,23), DateUtil.getDateTime(2014,3,6));
		assertThat(age.getFullYears(), is(48));
	}

	@Test
	public void testGetFullMonthsSinceLastBirthday() throws Exception {
		Age age = new Age(DateUtil.getDateTime(1965,3,23), DateUtil.getDateTime(2014,3,6));
		assertThat(age.getFullMonthsSinceLastBirthday(), is(11));
	}

    @Test
    public void testHashCode() throws Exception {
        Date d1 = DateUtil.parseYmd("2001-02-03");
        Date d2 = DateUtil.parseYmd("2002-03-04");
        Date d3 = DateUtil.parseYmd("2014-01-19");
        Date d4 = DateUtil.parseYmd("2014-01-20");

        int hashCode = new Age(d1, d4).hashCode();
        assertThat(hashCode, is(new Age(d1, d4).hashCode()));
        assertThat(hashCode, is(not(new Age(d2, d4).hashCode())));
        assertThat(hashCode, is(not(new Age(d1, d3).hashCode())));
        assertThat(hashCode, is(not(new Age(d2, d3).hashCode())));
        assertThat(hashCode, is(not(new Age(null, null).hashCode())));
    }

}