def test_gain_expect_gain(self):
test_configuration = Configuration()
expected_gain = '49.6'
actual_gain = test_configuration.gain()
assert actual_gain == expected_gain
def test_constructor_with_json_expect_constructed(self):
mock_json = '{"listener":{"gain":"0"}}'
test_configuration = Configuration()
test_configuration.load_json(mock_json)
actual_gain = test_configuration.gain()
assert actual_gain == '0'