python mongodb create and retrieve Ubuntu 17.04 continuous testing with unittest

pythonmongodb.txt

sudo apt-get install -y python3.6 python3-pip virtualenv mongodb
sudo systemctl start mongodb
virtualenv -p /usr/bin/python3.6 --distribute myproject
source myproject/bin/activate
pip install --upgrade pip
python -m pip install pymongo
pip install PyZen
cat > test_mongo.py <<EOL
import unittest
from pymongo import MongoClient
from pprint import pprint

class TestMongo(unittest.TestCase):

    def test_insert(self):
        self.longMessage = True
        db = MongoClient(port=27017).pythonemps
        db.employees.drop()
        self.assertEqual(0, db.employees.count(), "employees collection should be empty")
        db.employees.insert_one(
            {
                'name': 'Bob',
                'salary': 44000
            }
        )
        self.assertEqual(1, db.employees.count(), "employees collection should have one")

    def test_find(self):
        self.longMessage = True
        db = MongoClient(port=27017).pythonemps
        myrec = db.employees.find_one(
            {
                'name': 'Bob',
             }
        )
        print("Here it is:")
        pprint(myrec)
        print("The end.")
        self.assertEqual("Bob", myrec["name"], "retrieved record should have name Bob")
        self.assertEqual(44000, myrec["salary"], "retrieved record should have correct salary")

if __name__ == '__main__':
    unittest.main()

EOL
python test_mongo.py
# use pyzen to rerun tests automatically:
#pyzen test_mongo.py
# now change code in another terminal window, the tests magically rerun :)

# the end.