Fixes 376 and uses non-default PW for local testing (#441)

## How to run the test suite locally

1. Install Docker

2. Get the Postgresql with Postgis container and run it `docker run --name testdb -e POSTGRES_PASSOWRD='' -e POSTGRES_USER='postgres' -p 5432:5432 -d mdillon/postgis`

2. Get the Postgresql with Postgis container and run it `docker run --name testdb -e POSTGRES_PASSOWRD='NotTheDefault' -e POSTGRES_USER='postgres' -p 5432:5432 -d mdillon/postgis`

3. create database template_postgis: `docker exec testdb psql -c 'create database template_postgis;' -U postgres`

4. Run the test suite: `autocnet_config=config/test_config.yml pytest autocnet`

4. Run the test suite: `pytest autocnet`

import os

from unittest.mock import Mock, MagicMock

import networkx as nx

              'processing_memory': 8192},

              'database': {'type': 'postgresql',

                  'username': 'postgres',

                  'password': '',

                  'password': 'NotTheDefault',

                  'host': 'localhost',

                  'port': 5432,

                  'pgbouncer_port': 5432,

                  'semiminor_rad': 3376200,

                  'proj4_str': '+proj:longlat +a:3396190 +b:3376200 +no_defs',

                  'dem': None}}

    if os.environ.get('TRAVIS', False):

        config['database']['password'] = ''

    return config

@pytest.fixture()