Exercício 1 - JodaTime Tarefa - INE5448-08208 (20172) - Tópicos Especiais em Aplicações Tecnológicas I

JUnitAulaUm.java

package test;

import static org.junit.Assert.assertEquals;

import java.util.Arrays;
import java.util.Locale;
import java.util.TimeZone;

import org.joda.time.DateTime;
import org.joda.time.DateTimeConstants;
import org.joda.time.DateTimeUtils;
import org.joda.time.DateTimeZone;
import org.joda.time.Instant;
import org.joda.time.Interval;
import org.joda.time.LocalDate;
import org.joda.time.Period;
import org.joda.time.PeriodType;
import org.joda.time.chrono.ISOChronology;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;

/**
 *
 * @author lucas.tonussi
 * 
 * @see Test-Fixture
 * 
 *      A test fixture is a fixed state in code which is tested used as input
 *      for a test. Another way to describe this is a test precondition. For
 *      example, a test fixture might be a a fixed string, which is used as
 *      input for a method. The test would validate if the method behaves
 *      correctly with this input.
 * 
 * @see Unit-Test
 *
 *      A unit test is a piece of code written by a developer that executes a
 *      specific functionality in the code to be tested and asserts a certain
 *      behavior or state. @ Well Written
 * 
 * 
 * @see Well-written
 * 
 *      Test code should not assume any order, i.e., tests should not depend on
 *      other tests. JUnit assumes that all test methods can be executed in an
 *      arbitrary order.
 */
public class JUnitAulaUm {

	static DateTimeZone SAO_PAULO;

	@BeforeClass
	public static void setUpClass() {
		SAO_PAULO = DateTimeZone.forID("America/Sao_Paulo");
	}

	@AfterClass
	public static void tearDownClass() {
		SAO_PAULO = null;
	}

	@Before
	public void setUp() {
	}

	@After
	public void tearDown() {
	}

	@Test(timeout=200)
	public void testDateCreation() {
		// Fixture Setup
		LocalDate localDateTest;
		// Exercise SUT
		localDateTest = new LocalDate(2012, 2, 5);
		// Result Verification
		assertEquals(localDateTest.getYear(), 2012);
		assertEquals(localDateTest.getDayOfMonth(), 5);
		assertEquals(localDateTest.getMonthOfYear(), 2);
		// Fixture Teardown
		localDateTest = null;
	}

	@Test(timeout=200)
	public void testDateSum() {
		// Fixture Setup
		LocalDate natal2017 = new LocalDate(2017, 12, 25);
		LocalDate reveillon2018 = new LocalDate(2018, 1, 1);
		// Exercise SUT
		LocalDate testDate = natal2017.plusDays(7);
		// Result Verification
		assertEquals(reveillon2018, testDate);
		// Fixture Teardown
		natal2017 = null;
		reveillon2018 = null;
	}

	@Test(timeout=200)
	public void testDateSubstraction() {
		// Fixture Setup
		LocalDate janeiro1 = new LocalDate(2017, 1, 1);
		LocalDate janeiro2 = new LocalDate(2017, 4, 1);
		// Exercise SUT
		janeiro2 = janeiro2.minusMonths(3);
		// Result Verification
		assertEquals(janeiro1, janeiro2);
		// Fixture Teardown
		janeiro1 = null;
		janeiro2 = null;
	}

	@Test(timeout=200)
	public void testHourCreation() {
		// Fixture Setup
		DateTimeFormatter formatedHourTest;
		// Exercise SUT
		formatedHourTest = DateTimeFormat.forPattern("yyyy--dd MM HH");
		// Result Verification
		assertEquals (
			new DateTime(2010, 6, 30, 13, 0, ISOChronology.getInstance(SAO_PAULO)).toInstant(),
			Instant.parse("2010--30 06 13", formatedHourTest)
		);
		// Fixture Teardown
		formatedHourTest = null;
	}

	@Test(timeout=200)
	public void testHourSum() {
		// Fixture Setup
		DateTime dateTimeBeingTested = new DateTime(2006, 6, 9, 15, 0, 0, 0, SAO_PAULO);
		// Exercise SUT
		DateTime plusFiveHours = new DateTime(2006, 6, 9, 10, 0, 0, 0, SAO_PAULO).plusHours(5);
		// Result Verification
		assertEquals(dateTimeBeingTested, plusFiveHours);
		// Fixture Teardown
		dateTimeBeingTested = null;
		plusFiveHours = null;
	}

	@Test(timeout=200)
	public void testHoursSubtraction() {
		// Fixture Setup
		DateTime start;
		DateTime end1;
		// Exercise SUT
		start = new DateTime(2006, 6, 9, 15, 0, 0, 0, SAO_PAULO).minusHours(5);
		end1 = new DateTime(2006, 6, 9, 10, 0, 0, 0, SAO_PAULO);
		// Result Verification
		assertEquals(start, end1);
		// Fixture Teardown
		start = null;
		end1 = null;
	}

	@Test(timeout=200)
	public void testBeforeAndAfter() {
		// Fixture Setup
		Interval intervalBetween3And7;
		// Exercise SUT
		intervalBetween3And7 = new Interval(1, 2);
		// Result Verification
		assertEquals(true, intervalBetween3And7.isBefore(new Instant(2)));
		assertEquals(true, intervalBetween3And7.isBefore(new Instant(7)));
		assertEquals(false, intervalBetween3And7.isAfter(new Instant(6)));
		assertEquals(false, intervalBetween3And7.isAfter(new Instant(6)));
		// Fixture Teardown
		intervalBetween3And7 = null;
	}

	@Test(timeout=200)
	public void testDateTimeCreation() {
		// Fixture Setup
		DateTime dateBeingTested;
		// Exercise SUT
		dateBeingTested = new DateTime(2006, 6, 9, 12, 4, 3, 1, SAO_PAULO);
		// Result Verification
		assertEquals(dateBeingTested.getYear(), 2006);
		assertEquals(dateBeingTested.getDayOfMonth(), 9);
		assertEquals(dateBeingTested.getMonthOfYear(), 6);
		assertEquals(dateBeingTested.getHourOfDay(), 12);
		assertEquals(dateBeingTested.getMinuteOfHour(), 4);
		assertEquals(dateBeingTested.getSecondOfMinute(), 3);
		assertEquals(dateBeingTested.getMillisOfSecond(), 1);
		// Fixture Teardown
		dateBeingTested = null;
	}

	@Test(timeout=200)
	public void testDateInterval() {
		// Fixture Setup
		Interval internalTest;
		long TEST_TIME1 = 30L
				        * DateTimeConstants.MILLIS_PER_DAY + 12L
				        * DateTimeConstants.MILLIS_PER_HOUR + 24L
				        * DateTimeConstants.MILLIS_PER_MINUTE;

		long TEST_TIME2 = 100L
				        * DateTimeConstants.MILLIS_PER_DAY + 14L
				        * DateTimeConstants.MILLIS_PER_HOUR + 28L
				        * DateTimeConstants.MILLIS_PER_MINUTE;
		// Exercise SUT
		internalTest = new Interval(TEST_TIME1, TEST_TIME2);
		// Result Verification
		assertEquals(TEST_TIME2 - TEST_TIME1, internalTest.toDurationMillis());
		assertEquals(TEST_TIME2 - TEST_TIME1, internalTest.toDuration().getMillis());
		// Fixture Teardown
		internalTest = null;
	}

	@Test(timeout=200)
	public void testPeriodsCreation() {
		// Fixture Setup
		Period periodBeingTested;
		// Exercise SUT
		periodBeingTested = new Period(1, 0, 0, 4, 5, 6, 7, 8, PeriodType.yearDayTime());
		// Result Verification
		assertEquals(6, periodBeingTested.size());
		assertEquals(1, periodBeingTested.getValue(0));
		assertEquals(4, periodBeingTested.getValue(1));
		assertEquals(5, periodBeingTested.getValue(2));
		assertEquals(6, periodBeingTested.getValue(3));
		assertEquals(7, periodBeingTested.getValue(4));
		assertEquals(8, periodBeingTested.getValue(5));
		assertEquals(true, Arrays.equals(new int[] { 1, 4, 5, 6, 7, 8 }, periodBeingTested.getValues()));
		// Fixture Teardown
		periodBeingTested = null;
	}

}