@Test public void testTableExtCompatibility() throws IOException { String tableName = "DEFAULT.WIDE_TABLE"; Map<String, String> oldTableExt = new HashMap<>(); oldTableExt.put(MetadataConstants.TABLE_EXD_CARDINALITY, "1,2,3,4"); mockUpOldTableExtJson(tableName, oldTableExt); TableExtDesc tableExtDesc = getInstance(getTestConfig()).getTableExt(tableName, "default"); Assert.assertEquals("1,2,3,4,", tableExtDesc.getCardinality()); getInstance(getTestConfig()).removeTableExt(tableName, "default"); }