segmentedtimelinetests.java

关于jfreechart的电子说明书,一种说明图型使用的介绍

        timeline.setExceptionSegments(new java.util.ArrayList());
        assertEquals(0, timeline.getExceptionSegments().size());

        // add our exceptions and store locally in ArrayList of Longs
        ArrayList exceptionList = new ArrayList();
        for (int i = 0; i < exceptionString.length; i++) {
            long e;
            if (fmt instanceof NumberFormat) {
                e = ((NumberFormat) fmt).parse(exceptionString[i]).longValue();
            }
            else {
                e = timeline.getTime(
                    ((SimpleDateFormat) fmt).parse(exceptionString[i])
                );
            }
            // only add an exception if it is currently an included segment
            SegmentedTimeline.Segment segment = timeline.getSegment(e);
            if (segment.inIncludeSegments()) {
                timeline.addException(e);
                exceptionList.add(new Long(e));
                assertEquals(
                    exceptionList.size(), timeline.getExceptionSegments().size()
                );
                assertTrue(segment.inExceptionSegments());
            }
        }

        // make array of exceptions
        long[] exception = new long[exceptionList.size()];
        int i = 0;
        for (Iterator iter = exceptionList.iterator(); iter.hasNext();) {
            Long l = (Long) iter.next();
            exception[i++] = l.longValue();
        }

        return (exception);

    }

    /**
     * Adds an array of exceptions relative to the base timeline.
     *
     * @param timeline The timeline where the exceptions will be stored
     * @param exceptionString The exceptions to load
     * @param fmt The date formatter to use to parse each exceptions[i] value
     * @throws ParseException If there is any exception parsing each 
     *                        exceptions[i] value.
     */
    private void fillInBaseTimelineExceptions(SegmentedTimeline timeline,
                                             String[] exceptionString,
                                             Format fmt) throws ParseException {
        SegmentedTimeline baseTimeline = timeline.getBaseTimeline();
        for (int i = 0; i < exceptionString.length; i++) {
            long e;
            if (fmt instanceof NumberFormat) {
                e = ((NumberFormat) fmt).parse(exceptionString[i]).longValue();
            }
            else {
                e = timeline.getTime(
                    ((SimpleDateFormat) fmt).parse(exceptionString[i])
                );
            }
            timeline.addBaseTimelineException(e);

            // verify all timeline segments included in the 
            // baseTimeline.segment are now exceptions
            SegmentedTimeline.Segment segment1 = baseTimeline.getSegment(e);
            for (SegmentedTimeline.Segment segment2 
                = timeline.getSegment(segment1.getSegmentStart());
                 segment2.getSegmentStart() <= segment1.getSegmentEnd();
                 segment2.inc()) {
                if (!segment2.inExcludeSegments()) {
                    assertTrue(segment2.inExceptionSegments());
                }
            }

        }
    }

    /**
     * Adds new exceptions to a timeline. The exceptions are the excluded 
     * segments from its base timeline.
     *
     * @param timeline  the timeline.
     * @param from  the start.
     * @param to  the end.
     */
    private void fillInBaseTimelineExclusionsAsExceptions(
            SegmentedTimeline timeline, long from, long to) {

        // add the base timeline exclusions as timeline's esceptions
        timeline.addBaseTimelineExclusions(from, to);

        // validate base timeline exclusions added as timeline's esceptions
        for (SegmentedTimeline.Segment segment1 
                = timeline.getBaseTimeline().getSegment(from);
             segment1.getSegmentStart() <= to;
             segment1.inc()) {

            if (segment1.inExcludeSegments()) {

                // verify all timeline segments included in the 
                // baseTimeline.segment are now exceptions
                for (SegmentedTimeline.Segment segment2 
                     = timeline.getSegment(segment1.getSegmentStart());
                     segment2.getSegmentStart() <= segment1.getSegmentEnd();
                     segment2.inc()) {
                    if (!segment2.inExcludeSegments()) {
                        assertTrue(segment2.inExceptionSegments());
                    }
                }
            }
        }
    }

    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        SegmentedTimeline l1 = new SegmentedTimeline(1000, 5, 2);
        SegmentedTimeline l2 = null;
        try {
            l2 = (SegmentedTimeline) l1.clone();
        }
        catch (CloneNotSupportedException e) {
            System.err.println("Failed to clone.");
        }
        assertTrue(l1 != l2);
        assertTrue(l1.getClass() == l2.getClass());
        assertTrue(l1.equals(l2));
    }

    /**
     * Confirm that the equals method can distinguish all the required fields.
     */
    public void testEquals() {
        
        SegmentedTimeline l1 = new SegmentedTimeline(1000, 5, 2);
        SegmentedTimeline l2 = new SegmentedTimeline(1000, 5, 2);
        assertTrue(l1.equals(l2));
        
        l1 = new SegmentedTimeline(1000, 5, 2);
        l2 = new SegmentedTimeline(1001, 5, 2);
        assertFalse(l1.equals(l2));
        
        l1 = new SegmentedTimeline(1000, 5, 2);
        l2 = new SegmentedTimeline(1000, 4, 2);
        assertFalse(l1.equals(l2));
        
        l1 = new SegmentedTimeline(1000, 5, 2);
        l2 = new SegmentedTimeline(1000, 5, 1);
        assertFalse(l1.equals(l2));
        
        l1 = new SegmentedTimeline(1000, 5, 2);
        l2 = new SegmentedTimeline(1000, 5, 2);
        
        // start time...
        l1.setStartTime(1234L);
        assertFalse(l1.equals(l2));
        l2.setStartTime(1234L);
        assertTrue(l1.equals(l2));

    }
    
    /**
     * Two objects that are equal are required to return the same hashCode. 
     */
    public void testHashCode() {
        SegmentedTimeline l1 = new SegmentedTimeline(1000, 5, 2);
        SegmentedTimeline l2 = new SegmentedTimeline(1000, 5, 2);
        assertTrue(l1.equals(l2));
        int h1 = l1.hashCode();
        int h2 = l2.hashCode();
        assertEquals(h1, h2);
    }    
    
    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization2() {

        SegmentedTimeline l1 = new SegmentedTimeline(1000, 5, 2);
        SegmentedTimeline l2 = null;

        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(l1);
            out.close();

            ObjectInput in = new ObjectInputStream(
                new ByteArrayInputStream(buffer.toByteArray())
            );
            l2 = (SegmentedTimeline) in.readObject();
            in.close();
        }
        catch (Exception e) {
            System.out.println(e.toString());
        }
        boolean b = l1.equals(l2);
        assertTrue(b);

    }

    //////////////////////////////////////////////////////////////////////////
    // utility methods
    //////////////////////////////////////////////////////////////////////////

    /**
     * Tests a basic segmented timeline.
     */
    public void testBasicSegmentedTimeline() {
        SegmentedTimeline stl = new SegmentedTimeline(10, 2, 3);
        stl.setStartTime(946684800000L);  // 1-Jan-2000
        assertFalse(stl.containsDomainValue(946684799999L));
        assertTrue(stl.containsDomainValue(946684800000L));
        assertTrue(stl.containsDomainValue(946684800019L));
        assertFalse(stl.containsDomainValue(946684800020L));
        assertFalse(stl.containsDomainValue(946684800049L));
        assertTrue(stl.containsDomainValue(946684800050L));
        assertTrue(stl.containsDomainValue(946684800069L));
        assertFalse(stl.containsDomainValue(946684800070L));
        assertFalse(stl.containsDomainValue(946684800099L));
        assertTrue(stl.containsDomainValue(946684800100L));
        
        assertEquals(0, stl.toTimelineValue(946684800000L));
        assertEquals(19, stl.toTimelineValue(946684800019L));
        assertEquals(20, stl.toTimelineValue(946684800020L));
        assertEquals(20, stl.toTimelineValue(946684800049L));
        assertEquals(20, stl.toTimelineValue(946684800050L));
        assertEquals(39, stl.toTimelineValue(946684800069L));
        assertEquals(40, stl.toTimelineValue(946684800070L));
        assertEquals(40, stl.toTimelineValue(946684800099L));
        assertEquals(40, stl.toTimelineValue(946684800100L));
        
        assertEquals(946684800000L, stl.toMillisecond(0));
        assertEquals(946684800019L, stl.toMillisecond(19));
        assertEquals(946684800050L, stl.toMillisecond(20));
        assertEquals(946684800069L, stl.toMillisecond(39));
        assertEquals(946684800100L, stl.toMillisecond(40));
        
    }
    
    /**
     * Tests a basic time line with one exception.
     */
    public void testSegmentedTimelineWithException1() {
        SegmentedTimeline stl = new SegmentedTimeline(10, 2, 3);
        stl.setStartTime(946684800000L);  // 1-Jan-2000
        stl.addException(946684800050L);        
        assertFalse(stl.containsDomainValue(946684799999L));
        assertTrue(stl.containsDomainValue(946684800000L));
        assertTrue(stl.containsDomainValue(946684800019L));
        assertFalse(stl.containsDomainValue(946684800020L));
        assertFalse(stl.containsDomainValue(946684800049L));
        assertFalse(stl.containsDomainValue(946684800050L));
        assertFalse(stl.containsDomainValue(946684800059L));
        assertTrue(stl.containsDomainValue(946684800060L));
        assertTrue(stl.containsDomainValue(946684800069L));
        assertFalse(stl.containsDomainValue(946684800070L));
        assertFalse(stl.containsDomainValue(946684800099L));
        assertTrue(stl.containsDomainValue(946684800100L));

        //long v = stl.toTimelineValue(946684800020L);
        assertEquals(0, stl.toTimelineValue(946684800000L));
        assertEquals(19, stl.toTimelineValue(946684800019L));
        assertEquals(20, stl.toTimelineValue(946684800020L));
        assertEquals(20, stl.toTimelineValue(946684800049L));
        assertEquals(20, stl.toTimelineValue(946684800050L));
        assertEquals(29, stl.toTimelineValue(946684800069L));
        assertEquals(30, stl.toTimelineValue(946684800070L));
        assertEquals(30, stl.toTimelineValue(946684800099L));
        assertEquals(30, stl.toTimelineValue(946684800100L));

        assertEquals(946684800000L, stl.toMillisecond(0));
        assertEquals(946684800019L, stl.toMillisecond(19));
        assertEquals(946684800060L, stl.toMillisecond(20));
        assertEquals(946684800069L, stl.toMillisecond(29));
        assertEquals(946684800100L, stl.toMillisecond(30));

    }    

    //////////////////////////////////////////////////////////////////////////
    // main method only for debug
    //////////////////////////////////////////////////////////////////////////

    /**
     * Only use to debug JUnit suite.
     * 
     * @param args  ignored.
     * 
     * @throws Exception if there is some problem.
     */
    public static void main(String[] args) throws Exception {
        SegmentedTimelineTests test = new SegmentedTimelineTests("Test");
        test.setUp();
        test.testMondayThoughFridayExceptionSegments();
        test.tearDown();
    }

}