assertTrue(table.removeForeignKey(fk));
assertTrue(!_schema.getSchemaGroup().isNameTaken("fk"));
assertEquals(0, table.getForeignKeys().length);
// index testing
Index idx = table.addIndex("idx");
assertTrue(_schema.getSchemaGroup().isNameTaken("idx"));
assertTrue(!table.isNameTaken("idx"));
assertEquals(table, idx.getTable());
Index[] idxs = table.getIndexes();
assertEquals(1, idxs.length);