def test_begin_session():
c = Client()
scenario_name = "sce"
session = "se"
mode = "recordx"
req = c._begin_session(scenario_name, session, mode)
# checking prepared request
assert 'begin' in req.json
assert req.json['session'] == session
assert req.json['mode'] == mode
assert scenario_name in scenario_name in req.url
assert req.method == 'POST'
