public static Test suite() {
        TestSuite suite = new TestSuite("org.jfree.data.time.ohlc");
        suite.addTestSuite(OHLCItemTests.class);
        suite.addTestSuite(OHLCSeriesCollectionTests.class);
        suite.addTestSuite(OHLCSeriesTests.class);
        suite.addTestSuite(OHLCTests.class);
        return suite;