Examples of org.jfree.data.time.Hour

org.jfree.data.time.Hour
Represents an hour in a specific day. This class is immutable, which is a requirement for all {@link RegularTimePeriod} subclasses.

    /**
     * Set up an hour equal to hour zero, 1 January 1900.  Request the previous
     * hour, it should be null.
     */
    public void testLastHourPrevious() {
        Hour last = new Hour(23, new Day(31, MonthConstants.DECEMBER, 9999));
        Hour previous = (Hour) last.previous();
        assertEquals(22, previous.getHour());
        assertEquals(9999, previous.getYear());
    }

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    /**
     * Set up an hour equal to hour zero, 1 January 1900.  Request the next
     * hour, it should be null.
     */
    public void testLastHourNext() {
        Hour last = new Hour(23, new Day(31, MonthConstants.DECEMBER, 9999));
        Hour next = (Hour) last.next();
        assertNull(next);
    }

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    /**
     * Problem for date parsing.
     */
    public void testParseHour() {
        // test 1...
        Hour h = Hour.parseHour("2002-01-29 13");
        assertEquals(13, h.getHour());
    }

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    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {
        Hour h1 = new Hour();
        Hour h2 = null;


        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(h1);

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    /**
     * Two objects that are equal are required to return the same hashCode.
     */
    public void testHashcode() {
        Hour h1 = new Hour(7, 9, 10, 1999);
        Hour h2 = new Hour(7, 9, 10, 1999);
        assertTrue(h1.equals(h2));
        int hash1 = h1.hashCode();
        int hash2 = h2.hashCode();
        assertEquals(hash1, hash2);
    }

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    /**
     * The {@link Hour} class is immutable, so should not be {@link Cloneable}.
     */
    public void testNotCloneable() {
        Hour h = new Hour(7, 9, 10, 1999);
        assertFalse(h instanceof Cloneable);
    }

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    public void testGetFirstMillisecond() {
        Locale saved = Locale.getDefault();
        Locale.setDefault(Locale.UK);
        TimeZone savedZone = TimeZone.getDefault();
        TimeZone.setDefault(TimeZone.getTimeZone("Europe/London"));
        Hour h = new Hour(15, 1, 4, 2006);
        assertEquals(1143900000000L, h.getFirstMillisecond());
        Locale.setDefault(saved);
        TimeZone.setDefault(savedZone);
    }

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    /**
     * Some checks for the getFirstMillisecond(TimeZone) method.
     */
    public void testGetFirstMillisecondWithTimeZone() {
        Hour h = new Hour(15, 1, 4, 1950);
        TimeZone zone = TimeZone.getTimeZone("America/Los_Angeles");
        assertEquals(-623293200000L, h.getFirstMillisecond(zone));


        // try null calendar
        boolean pass = false;
        try {
            h.getFirstMillisecond((TimeZone) null);
        }
        catch (NullPointerException e) {
            pass = true;
        }
        assertTrue(pass);

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    /**
     * Some checks for the getFirstMillisecond(TimeZone) method.
     */
    public void testGetFirstMillisecondWithCalendar() {
        Hour h = new Hour(2, 15, 4, 2000);
        GregorianCalendar calendar = new GregorianCalendar(Locale.GERMANY);
        calendar.setTimeZone(TimeZone.getTimeZone("Europe/Frankfurt"));
        assertEquals(955764000000L, h.getFirstMillisecond(calendar));


        // try null calendar
        boolean pass = false;
        try {
            h.getFirstMillisecond((Calendar) null);
        }
        catch (NullPointerException e) {
            pass = true;
        }
        assertTrue(pass);

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    public void testGetLastMillisecond() {
        Locale saved = Locale.getDefault();
        Locale.setDefault(Locale.UK);
        TimeZone savedZone = TimeZone.getDefault();
        TimeZone.setDefault(TimeZone.getTimeZone("Europe/London"));
        Hour h = new Hour(1, 1, 1, 1970);
        assertEquals(3599999L, h.getLastMillisecond());
        Locale.setDefault(saved);
        TimeZone.setDefault(savedZone);
    }

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