Commits on Sep 19, 2024

1. Start implementing room lifecycle spec …

   This is based on [1] at b4a495e. It’s generated some questions, which
   I’ve asked on that PR.
   
   Note that the spec has been through a few revisions since I started
   implementing this; I’ve tried to keep everything in sync but some older
   stuff might still be accidentally there.
   
   I’ve implemented most of the specified behaviour for the ATTACH, DETACH,
   and RELEASE operations. I have not yet implemented RETRY since it’s
   quite different to those three and I wanted to get eyes on this first
   chunk of work; have created ably-labs#51 for implementing it.
   
   Of the operations that I have implemented, I have not implemented the
   following (this is accurately reflected by the @SPEC… tags in the
   tests):
   
   - Lifecycle behaviour that relates to another ongoing operation (created
     ably-labs#52)
   
   - Lifecycle behaviour relating to “transient disconnect timeouts”
     (created ably-labs#48)
   
   - Lifecycle behaviour that occurs “asynchronously” outside an operation
     (created ably-labs#50)
   
   - CHA-RL1g2, which refers to emitting “discontinuity events” which are a
     concept not yet implemented; this will come in ably-labs#53.
   
   The room lifecycle manager introduced by this commit is currently a
   standalone object, which is not integrated with the rest of the SDK.
   I’ve created ably-labs#47 for doing this integration work.
   
   The @SPEC… tags are based on the on the JS rules [2] @ 8c9ce8b, but I
   camel-cased them and also decided that:
   
   - if a test doesn't relate to a spec point, it doesn't need any markers
   
   - there should be a way to know that a spec point is tested across
     multiple tests
   
   - there should be a way of marking a spec point as implemented but not
     tested (so that can show up differently in reporting; important given
     that we’re also going to use this report as a to-do list of what still
     needs to be implemented)
   
   Part of ably-labs#28.
   
   [1] ably/specification#200
   [2] https://github.com/ably/ably-js/blob/main/CONTRIBUTING.md#tests-alignment-with-the-ably-features-specification

   

   lawrence-forooghian committed Sep 19, 2024
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