@Test
public void testSparse() throws Exception {

    // Test extra columns
    parser.setSeparatorChar("\t");
    try {
        validateSchema1("col1\tcol2\tcol3\nr1v1\tr1v2\tr1v3\tr1v4\nr2v1\tr2v2\tr2v3\n");
        fail("Expecting unrecognized format");
    } catch (IOException e) {
        checkInvalidFormatException(e);
    }
}