memgraph/tests/gql_behave/steps/graph.py
2021-10-26 08:53:56 +02:00

77 lines
2.3 KiB
Python

# Copyright 2021 Memgraph Ltd.
#
# Use of this software is governed by the Business Source License
# included in the file licenses/BSL.txt; by using this file, you agree to be bound by the terms of the Business Source
# License, and you may not use this file except in compliance with the Business Source License.
#
# As of the Change Date specified in that file, in accordance with
# the Business Source License, use of this software will be governed
# by the Apache License, Version 2.0, included in the file
# licenses/APL.txt.
# -*- coding: utf-8 -*-
import database
import os
from behave import given
def clear_graph(context):
database.query("MATCH (n) DETACH DELETE n", context)
if context.exception is not None:
context.exception = None
database.query("MATCH (n) DETACH DELETE n", context)
@given('an empty graph')
def empty_graph_step(context):
clear_graph(context)
@given('any graph')
def any_graph_step(context):
clear_graph(context)
@given('graph "{name}"')
def graph_name(context, name):
create_graph(name, context)
def create_graph(name, context):
"""
Function deletes everything from database and creates a new
graph. Graph file name is an argument of function. Function
executes queries written in a .cypher file separated by ';'
and sets graph properties to beginning values.
"""
clear_graph(context)
path = os.path.join(context.config.test_directory, "graphs",
name + ".cypher")
q_marks = ["'", '"', '`']
with open(path, 'r') as f:
content = f.read().replace('\n', ' ')
single_query = ''
quote = None
i = 0
while i < len(content):
ch = content[i]
if ch == '\\' and i != len(content) - 1 and \
content[i + 1] in q_marks:
single_query += ch + content[i + 1]
i += 2
else:
single_query += ch
if quote == ch:
quote = None
elif ch in q_marks and quote is None:
quote = ch
if ch == ';' and quote is None:
database.query(single_query, context)
single_query = ''
i += 1
if single_query.strip() != '':
database.query(single_query, context)