def test_invalid_config():
# A config instance with at least one property with value
# equal to `None` is invalid
config = Config()
assert not config.is_valid
config.database = None
config.password = '******'
assert not config.is_valid
config.database = 'mydatabase'
config.password = None
assert not config.is_valid
def test_valid_config():
# The config object hold default values for host, port and user
# database and password are set to None
# So, adding a database and a password is the basic
# properties that must be filled
config = Config()
config.database = 'mydatabase'
config.password = '******'
assert config.is_valid
def test_connection(mocker):
from pgmboi import database
# connection with a invalid config instance
config = Config()
assert not database.connect(config)
# connection with invalid credentials
config.database = 'database1'
config.password = '******'
assert not database.connect(config)
# mock for a successful connection
conn = mocker.patch('pgmboi.database.psycopg2.connect')
conn().closed = 0
assert database.connect(config)
