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HA entity, sensor and device classes (iteration 2, step 3)

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HaEntity describes an entity for device-based discovery, throttles its
state (SEN-14) and reports availability (SEN-15); HaSensor is the
`sensor` type. HaDevice publishes discovery, availability and states
after each connect and after HA's birth message, provides the last
will and removes itself from HA. Unit tests with a fake MQTT client.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
matzman
2026-10-06 16:12:43 +02:00
co-authored by Claude Opus 5.5
parent 96df60e6bd
commit 466743eff9
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docs/DESIGN.md
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@@ -399,8 +399,8 @@ delete).
| Test | Content |
|---|---|
| `tst_haentity` | discovery component, topics, throttling (several values within an interval → one publish with the last value), unavailable without a value |
| `tst_hadevice` (fake client) | discovery payload, `online` and states after connect, republish after reconnect and birth, will configuration, `removeFromHa()` |
| `tst_haentity` | discovery component (optional keys only when set), topics, throttling (several values within an interval → one state with the newest value; unchanged or reverted values not emitted), first value → state then available, cleared → unavailable |
| `tst_hadevice` (`tests/FakeMqttClient.h`) | topics, discovery prefix, last will, discovery payload, what is published after a connect and in which order, entity without value unavailable, changes while connected, nothing buffered and current state after reconnect, birth message (delayed; cancelled by a disconnect; other messages ignored), `removeFromHa()` |
| `tst_mqtt` (integration; real `mosquitto` on a free port, QSKIP without it) | connect and messages; retained message for a later subscriber; nothing published while disconnected; first connect retried until the broker runs; reconnect after a broker restart; unresolvable host; last will after `kill -9` of a helper process (the test binary itself, `--will-helper`); `disconnectFromBroker()` publishes the will; login right and wrong; TLS with a test CA (step 5) |
| `tst_surfaces` | `--desktop-novr`; app command: hook called, no surface created, exit code returned |
| Manual | from the PC against the user's HA: device appears, online/offline, broker restart, two devices, `--ha-remove`, UI-1 in `--desktop`. On the Frame: the package with libmosquitto runs |