Examples of org.jfree.chart.renderer.GrayPaintScale

org.jfree.chart.renderer.GrayPaintScale
A paint scale that returns shades of gray. @since 1.0.4

     * Test that the equals() method distinguishes all fields.
     */
    public void testEquals() {


        // default instances
        PaintScaleLegend l1 = new PaintScaleLegend(new GrayPaintScale(),
                new NumberAxis("X"));
        PaintScaleLegend l2 = new PaintScaleLegend(new GrayPaintScale(),
                new NumberAxis("X"));
        assertTrue(l1.equals(l2));
        assertTrue(l2.equals(l1));


        // paintScale

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    /**
     * Two objects that are equal are required to return the same hashCode.
     */
    public void testHashcode() {
        PaintScaleLegend l1 = new PaintScaleLegend(new GrayPaintScale(),
                new NumberAxis("X"));
        PaintScaleLegend l2 = new PaintScaleLegend(new GrayPaintScale(),
                new NumberAxis("X"));
        assertTrue(l1.equals(l2));
        int h1 = l1.hashCode();
        int h2 = l2.hashCode();
        assertEquals(h1, h2);

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    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        PaintScaleLegend l1 = new PaintScaleLegend(new GrayPaintScale(),
                new NumberAxis("X"));
        PaintScaleLegend l2 = null;
        try {
            l2 = (PaintScaleLegend) l1.clone();
        }

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    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {
        PaintScaleLegend l1 = new PaintScaleLegend(new GrayPaintScale(),
                new NumberAxis("X"));
        PaintScaleLegend l2 = null;
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);

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    /**
     * Simple check for the default constructor.
     */
    public void testConstructor() {
        GrayPaintScale gps = new GrayPaintScale();
        assertEquals(0.0, gps.getLowerBound(), EPSILON);
        assertEquals(1.0, gps.getUpperBound(), EPSILON);
        assertEquals(255, gps.getAlpha());
    }

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    /**
     * Some checks for the getPaint() method.
     */
    public void testGetPaint() {
        GrayPaintScale gps = new GrayPaintScale();
        Color c = (Color) gps.getPaint(0.0);
        assertTrue(c.equals(Color.black));
        c = (Color) gps.getPaint(1.0);
        assertTrue(c.equals(Color.white));


        // check lookup values that are outside the bounds - see bug report
        // 1767315
        c = (Color) gps.getPaint(-0.5);
        assertTrue(c.equals(Color.black));
        c = (Color) gps.getPaint(1.5);
        assertTrue(c.equals(Color.white));
    }

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    /**
     * A test for the equals() method.
     */
    public void testEquals() {
        GrayPaintScale g1 = new GrayPaintScale();
        GrayPaintScale g2 = new GrayPaintScale();
        assertTrue(g1.equals(g2));
        assertTrue(g2.equals(g1));


        g1 = new GrayPaintScale(0.0, 1.0);
        g2 = new GrayPaintScale(0.0, 1.0);
        assertTrue(g1.equals(g2));
        g1 = new GrayPaintScale(0.1, 1.0);
        assertFalse(g1.equals(g2));
        g2 = new GrayPaintScale(0.1, 1.0);
        assertTrue(g1.equals(g2));


        g1 = new GrayPaintScale(0.1, 0.9);
        assertFalse(g1.equals(g2));
        g2 = new GrayPaintScale(0.1, 0.9);
        assertTrue(g1.equals(g2));


        g1 = new GrayPaintScale(0.1, 0.9, 128);
        assertFalse(g1.equals(g2));
        g2 = new GrayPaintScale(0.1, 0.9, 128);
        assertTrue(g1.equals(g2));
    }

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    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        GrayPaintScale g1 = new GrayPaintScale();
        GrayPaintScale g2 = null;
        try {
            g2 = (GrayPaintScale) g1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(g1 != g2);
        assertTrue(g1.getClass() == g2.getClass());
        assertTrue(g1.equals(g2));
    }

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    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {
        GrayPaintScale g1 = new GrayPaintScale();
        GrayPaintScale g2 = null;
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(g1);
            out.close();

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     * Test that the equals() method distinguishes all fields.
     */
    public void testEquals() {


        // default instances
        PaintScaleLegend l1 = new PaintScaleLegend(new GrayPaintScale(),
                new NumberAxis("X"));
        PaintScaleLegend l2 = new PaintScaleLegend(new GrayPaintScale(),
                new NumberAxis("X"));
        assertTrue(l1.equals(l2));
        assertTrue(l2.equals(l1));


        // paintScale

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