Mongo

Users can test MongoDB dependant code using the create_mongo_fixture.

Consider the following example:

# src/some_module.py

def insert_into_customer(mongodb_connection):
    collection = mongodb_connection['customer']
    to_insert = {"name": "John", "address": "Highway 37"}
    collection.insert_one(to_insert)

A user can test this as follows:

# tests/some_test.py

from pytest_mock_resources import create_mongo_fixture
from some_module import insert_into_customer

mongo = create_mongo_fixture()

def test_insert_into_customer(mongo):
    insert_into_customer(mongo)

    collection = mongo['customer']
    returned = collection.find_one()

    assert returned == {"name": "John", "address": "Highway 37"}

Custom Connections

Custom connections can also be generated via the fixture’s yielded attributes/MONGO_* fixtures:

# tests/some_test.py

from pymongo import MongoClient

from pytest_mock_resources import create_mongo_fixture

mongo = create_mongo_fixture()


def test_create_custom_connection(mongo):
    client = MongoClient(**mongo.pmr_credentials.as_mongo_kwargs())
    db = client[mongo.config["database"]]

    collection = db["customers"]
    to_insert = [
        {"name": "John"},
        {"name": "Viola"},
    ]
    collection.insert_many(to_insert)

    result = collection.find().sort("name")
    returned = [row for row in result]

    assert returned == to_insert