def test_create_wrong_credentials():
""" Test init with wrong credentials - should raise an exception """
with pytest.raises(pds.DatastreamException):
assert pds.Datastream("USERNAME", "PASSWORD")
def init_datastream():
""" Create an instance of datastream """
return pds.Datastream(os.environ['DSWS_USER'], os.environ['DSWS_PASS'])
def empty_datastream():
""" Create an instance of datastream """
with warnings.catch_warnings():
warnings.simplefilter("ignore")
return pds.Datastream(None, None)