Test generic backend functions

tests/backend/test_schema.py

@@ -0,0 +1,45 @@
+from pytest import mark, raises
+
+
+@mark.parametrize('schema_func_name,args_qty', (
+    ('create_database', 1),
+    ('create_tables', 1),
+    ('create_indexes', 1),
+    ('drop_database', 1),
+))
+def test_schema(schema_func_name, args_qty):
+    from bigchaindb.backend import schema
+    schema_func = getattr(schema, schema_func_name)
+    with raises(NotImplementedError):
+        schema_func(None, *range(args_qty))
+
+
+@mark.parametrize('query_func_name,args_qty', (
+    ('write_transaction', 1),
+    ('count_blocks', 0),
+    ('count_backlog', 0),
+    ('get_genesis_block', 0),
+    ('delete_transaction', 1),
+    ('get_stale_transactions', 1),
+    ('get_blocks_status_from_transaction', 1),
+    ('get_transaction_from_backlog', 1),
+    ('get_txids_by_asset_id', 1),
+    ('get_asset_by_id', 1),
+    ('get_owned_ids', 1),
+    ('get_votes_by_block_id', 1),
+    ('write_block', 1),
+    ('get_block', 1),
+    ('has_transaction', 1),
+    ('write_vote', 1),
+    ('get_last_voted_block', 1),
+    ('get_unvoted_blocks', 1),
+    ('get_spent', 2),
+    ('get_votes_by_block_id_and_voter', 2),
+    ('update_transaction', 2),
+    ('get_transaction_from_block', 2),
+))
+def test_query(query_func_name, args_qty):
+    from bigchaindb.backend import query
+    query_func = getattr(query, query_func_name)
+    with raises(NotImplementedError):
+        query_func(None, *range(args_qty))