    @Test
    public void testExtractVersionRows() {

        try {
            RF1Importer rf1i = new RF1Importer(
                    this.getClass().getResourceAsStream("/rf1_con_test.txt"), 
                    this.getClass().getResourceAsStream("/rf1_rel_test.txt"), 
                    "20110731");
            VersionRows vr1 = rf1i.extractVersionRows();
            Assert.assertEquals("20110731", vr1.getVersionName());
            Assert.assertEquals(11, vr1.getConceptRows().size());
            Assert.assertEquals(13, vr1.getRelationshipRows().size());
        } catch(Exception e) {
            e.printStackTrace();
            Assert.assertTrue(false);
        }
    }