Unsolicited ATTACHED on detached channel re-enters attached instead of sending DETACH (RTL5k)

[paddybyers]

Spec requirement

RTL5k: If the channel receives an ATTACHED message while in the DETACHED state, it should send a new DETACH message to the server.

Current behaviour

ably-js re-enters the attached state instead of sending DETACH when an unsolicited ATTACHED is received while the channel is detached.

Reproduction

RUN_DEVIATIONS=1 npx mocha --no-config --require tsx/cjs 'test/uts/realtime/channels/channel_detach.test.ts' --timeout 30000 --grep "RTL5k - ATTACHED while detached sends DETACH"

UTS test

test/uts/realtime/channels/channel_detach.test.ts — asserts detachMessageCount == 2 and channel.state == 'detached'.

┆Issue is synchronized with this Jira Task by Unito