public void testConstructor() {
        CandlestickRenderer r1 = new CandlestickRenderer();

        // check defaults
        assertEquals(Color.green, r1.getUpPaint());
        assertEquals(Color.red, r1.getDownPaint());
        assertFalse(r1.getUseOutlinePaint());
        assertTrue(r1.getDrawVolume());
        assertEquals(Color.gray, r1.getVolumePaint());
        assertEquals(-1.0, r1.getCandleWidth(), EPSILON);