t46 F1, reproduced against real Home Assistant: submitting the options page with a
cleared entity field (script_turn_on='') produced "Schema validation failed at
script_turn_on". HA validates the submitted page against the schema the flow last
returned, and real EntitySelector rejects BOTH '' and None — "Entity is neither a
valid entity ID nor a valid UUID" (verified directly against homeassistant's
EntitySelector). Clearing therefore depended on the frontend OMITTING the key, on
every entity field of the page, not only the script ones t44 added.
_ClearingEntitySelector subclasses EntitySelector and returns '' for None or an
empty/whitespace string, delegating everything else to the parent — so a real entity
id is still domain-checked, and the class is still an EntitySelector: its serialized
form is byte-identical to the real selector's
({"selector": {"entity": {"domain": ["script"], "multiple": false, "reorder": false}}}),
so the frontend keeps rendering an entity picker.
The step also normalizes a submitted None to '' before it acts: an explicit empty
value clears the setting (the script dict drops it, the patched options store '' which
every reader already treats as unset), while an OMITTED key still means "the page did
not touch it" for the patched options — and still means "cleared" for the script dict,
which is rebuilt from the page (t44's editor-is-the-truth rule, unchanged).
The test harness now models the trap instead of hiding it: EntitySelector is a CLASS
(entity_stublib.EntitySelectorStub) that rejects ''/None like real HA, defined once and
shared by all five stub installers through install_selector_faces(), so the stubs
cannot drift apart.
Tests (tests/test_config_flow_ux.py::TestClearingAnEntityField, 8): the schema accepts
omitted/None/'' while passing a real entity id through; the plain selector is pinned as
rejecting the same values (the trap itself); '' and None each clear a script AND a
pre-existing entity field (jellyfin, the older instance of the pattern) while
untouched fields survive; an omitted script field is cleared; an omitted entity field
is kept; and a prefill→submit round trip changes nothing.
RED PROOF: with the five selector sites switched back to the plain EntitySelector,
exactly the five tolerance tests fail (5 failed, 4 passed) and the rest of the file
stays green; restored, 70 pass. Real-HA probe run separately (see the task output):
strict rejects '' and None, the subclass accepts both and returns '', and serialization
is unchanged.
Verified: 423 passed / 2 skipped, ruff clean, drift engine exit 0 under real HA.
A subset of test files in an order the suite was not written for failed 3
test_init.py::TestImportStep tests with ModuleNotFoundError: voluptuous, while the
full suite stayed green. Two order-only mechanisms, both now fixed at the source:
1. entity_stublib.install() guarded on ONE sentinel
(`homeassistant.components.media_player`). A file whose teardown popped
`voluptuous` but left the sentinel turned the next file's install() into a no-op,
so importing config_flow failed. The guard now checks every face a file scopes on
(`_STUB_FACES`, derived from ENTITIES_STUB_NAMES so the two cannot drift) and
rebuilds the set when anything is missing. install() also registers the
`homeassistant.helpers.selector` face itself, which the per-file installers had
been adding separately — without it the derived list would never be complete.
2. Teardowns restored only the names their file had listed, so a module the file
loaded (`nsh.diagnostics`, `nsh.media_player`) survived into the next file still
holding stub objects — a stub exception class, the redact helper — that had since
been replaced; comparisons against the new objects then failed (5 tests in
test_command_routing on an unlucky order). Every file now ends through
entity_stublib.snapshot_modules()/restore_modules(), which drops EVERYTHING the
file created under the harness namespaces (homeassistant/voluptuous/nsh) and puts
back everything it replaced. Hand-written lists were the bug, so there is none to
keep in sync.
The t7 no-leak discipline is unchanged: a file's stubs still never reach another
file, and a file's loaded modules still do not survive it. A session-scoped baseline
install was tried first and rejected: files whose own installer guards on "the stubs
are already there" skipped installing their richer faces, which produced exactly the
inconsistent state a baseline is meant to prevent (10 test_standalone_setup failures).
tests/test_harness_scoping.py: the sentinel poisoning, the wholesale-rebuild
invariant, a teardown that removes what the file loaded, the stale-object case
(diagnostics vs the redact helper), and — because order is the thing under test —
two subprocess runs of the reported orderings.
Verified: the reported order (test_command_routing, test_protocol_transport,
test_standalone_setup, test_init) 152 passed / 1 skipped; the minimal pair both ways;
the previously failing 6-test order now 167 passed; every test file in REVERSE
alphabetical order 369 passed / 2 skipped; two scrambled thirds green; full suite
369 / 2 and 370 / 1 with androidtvremote2; ruff clean.
The two address fields were the same Shield spelled twice, and every bug in the
zeroconf/IP-change path came from keeping them in sync. One field now:
* const.CONF_HOST replaces CONF_ADB_HOST / CONF_PROTOCOL_HOST in the setup form,
the options page, the pairing forms, the reconfigure/reauth seeding and the
description copy. ADB port 5555 stays the only port field;
* helpers.entry_host(entry) is the single resolver (options first, then data);
resolve_adb_config and the protocol settings both go through it, so both
transports read the same value at call time (the t32 F1 factory re-read keeps
working: the NEXT built poller sees the new address);
* helpers.seed_host / seed_adb_enabled own the YAML seed's shape rule. A block
may use `host` or the legacy protocol_host/adb_host keys — t41 keeps the old
spelling working — and t32 F4's outcome is unchanged: a protocol-only block
leaves ADB off, an address (or an explicit adb_enabled) turns it on;
* the zeroconf IP-change path collapses the t21-F2 per-host dance into one rule:
the discovery address IS the entry's address, so the entry is updated when it
differs and left alone when it matches. The blank-self-heal and
deliberately-different-ADB-host cases are gone with the duplication — a
second address field cannot express them anymore, and the tests now pin that
(previously "an explicit override is never clobbered");
* the options page exposes the protocol toggle it never had (the page could turn
ADB off but not the protocol);
* button.py (granted to this task) reads the entry's own address instead of
another integration's entity.
The v3 entry migration that maps existing adb_host/protocol_host onto CONF_HOST
and drops the androidtv key lands in the next commit; HA runs migrations before
setup, so an existing entry is never read with the old shape.
Verified: 311 passed / 2 skipped, 312 / 1 with androidtvremote2, ruff clean,
drift engine exit 0 on HEAD. The UI-copy contract tests (every rendered field
has a label in strings.json AND translations/en.json, key trees identical, host
errors name the field) drove the string edits.
James Mackay