def test_tn_idempotency_of_channel_openings(token_network_model: TokenNetwork,
addresses: List[Address]):
# create same channel 5 times
for _ in range(5):
token_network_model.handle_channel_opened_event(
channel_identifier=ChannelID(1),
participant1=addresses[0],
participant2=addresses[1],
)
# there should only be one channel
assert len(token_network_model.channel_id_to_addresses) == 1
# now close the channel
token_network_model.handle_channel_removed_event(
channel_identifier=ChannelID(1))
# there should be no channels
assert len(token_network_model.channel_id_to_addresses) == 0
def test_tn_multiple_channels_for_two_participants_opened(
token_network_model: TokenNetwork, addresses: List[Address]):
token_network_model.handle_channel_opened_event(
channel_identifier=ChannelID(1),
participant1=addresses[0],
participant2=addresses[1],
)
token_network_model.handle_channel_opened_event(
channel_identifier=ChannelID(2),
participant1=addresses[0],
participant2=addresses[1],
)
# now there should be two channels
assert len(token_network_model.channel_id_to_addresses) == 2
# now close one channel
token_network_model.handle_channel_removed_event(
channel_identifier=ChannelID(1))
# there should be one channel left
assert len(token_network_model.channel_id_to_addresses) == 1
