@Test
public void testGetSupportedExtensions() {

    System.out.println("getSupportedExtensions");
    String[] expResult = new String[]{"kcd", "kcd.gz"};
    String[] result = loader.getSupportedExtensions();
    assertEquals(2, result.length);
    assertEquals(expResult[0], result[0]);
    assertEquals(expResult[1], result[1]);
}