Package org.jfree.data.xy

Examples of org.jfree.data.xy.XYDataItem

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    /**
     * Confirm that the equals method can distinguish all the required fields.
     */
    public void testEquals() {
       
        XYDataItem i1 = new XYDataItem(1.0, 1.1);
        XYDataItem i2 = new XYDataItem(1.0, 1.1);
        assertTrue(i1.equals(i2));
        assertTrue(i2.equals(i1));

        i1.setY(new Double(9.9));
        assertFalse(i1.equals(i2));

        i2.setY(new Double(9.9));
        assertTrue(i1.equals(i2));

    }
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    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        XYDataItem i1 = new XYDataItem(1.0, 1.1);
        XYDataItem i2 = null;
        try {
            i2 = (XYDataItem) i1.clone();
        }
        catch (CloneNotSupportedException e) {
            System.err.println("XYDataItemTests.testCloning: failed to clone.");
        }
        assertTrue(i1 != i2);
        assertTrue(i1.getClass() == i2.getClass());
        assertTrue(i1.equals(i2));
    }
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    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {

        XYDataItem i1 = new XYDataItem(1.0, 1.1);
        XYDataItem i2 = null;
       
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(i1);
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