feat: add typed DAO layer for schedule_rules and task_definitions (#19)

This commit is contained in:
Joshua King
2026-09-14 07:34:42 -04:00
parent 43b20f2b12
commit 46a0a3445c
3 changed files with 1096 additions and 0 deletions
+386
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@@ -0,0 +1,386 @@
"""Typed DAO layer for the schedule_rules and task_definitions tables.
All SQL for ``schedule_rules`` and ``task_definitions`` lives in this
module per the feature guardrails: callers get typed dataclasses back
and never see raw rows or SQL. Every method is async and runs through
:class:`~.db.NestQuestDatabase`, so each statement executes on the HA
executor and the event loop never blocks.
Guardrail mapping:
- ``schedule_rules`` deletion is delete-if-unreferenced: a rule still
referenced by any task definition is rejected (the done-condition),
not cascaded.
- ``task_definitions`` has no delete path at all: definitions are
deactivated, never hard-deleted, and history must survive.
- ``set_assignee`` changes future instances only — the DAO writes the
definition row and nothing else; reassignment never rewrites
existing instances or completion history (Feature 06 guardrail).
- Validation of rule well-formedness and child activeness lives partly
in the schema CHECKs (rule-type coherence) and partly in
:meth:`TaskDefinitionsDao.create` (active child, rule existence);
no permission checks here, that is the Feature 09 gate's job.
Concurrency: ``delete_rule_if_unreferenced`` performs its reference
check and DELETE inside one transaction under the connection-scoped
lock shared with :mod:`.dao_children`, so a definition referencing the
rule cannot appear between check and delete on this connection.
"""
from __future__ import annotations
from dataclasses import dataclass
from .dao_children import _connection_lock
from .db import NestQuestDatabase
@dataclass(frozen=True)
class ScheduleRuleRecord:
"""One row of ``schedule_rules``."""
id: int
rule_type: str
interval: int
weekday_set: str | None
day_of_month: int | None
nth_weekday: int | None
month: int | None
start_date: str
end_date: str | None
@dataclass(frozen=True)
class TaskDefinitionRecord:
"""One row of ``task_definitions``."""
id: int
title: str
description: str | None
icon: str | None
child_id: int
schedule_rule_id: int
due_time: str | None
is_active: bool
created_at: str
_RULE_COLUMNS = (
"id, rule_type, interval, weekday_set, day_of_month, nth_weekday, "
"month, start_date, end_date"
)
_DEFINITION_COLUMNS = (
"id, title, description, icon, child_id, schedule_rule_id, due_time, "
"is_active, created_at"
)
def _rule_from_row(row: tuple) -> ScheduleRuleRecord:
return ScheduleRuleRecord(
id=row[0],
rule_type=row[1],
interval=row[2],
weekday_set=row[3],
day_of_month=row[4],
nth_weekday=row[5],
month=row[6],
start_date=row[7],
end_date=row[8],
)
def _definition_from_row(row: tuple) -> TaskDefinitionRecord:
return TaskDefinitionRecord(
id=row[0],
title=row[1],
description=row[2],
icon=row[3],
child_id=row[4],
schedule_rule_id=row[5],
due_time=row[6],
is_active=bool(row[7]),
created_at=row[8],
)
class ScheduleRulesDao:
"""Typed async access to the ``schedule_rules`` table."""
def __init__(self, database: NestQuestDatabase) -> None:
self._database = database
async def create(
self,
rule_type: str,
start_date: str,
*,
interval: int = 1,
weekday_set: str | None = None,
day_of_month: int | None = None,
nth_weekday: int | None = None,
month: int | None = None,
end_date: str | None = None,
) -> ScheduleRuleRecord:
"""Insert one rule and return the record as stored.
Rule-type coherence (a weekly rule needs ``weekday_set``, a
yearly rule needs ``month``, etc.) is enforced by the schema
CHECKs and surfaces as :class:`sqlite3.IntegrityError`.
"""
result = await self._database.execute(
"INSERT INTO schedule_rules (rule_type, interval, weekday_set, "
"day_of_month, nth_weekday, month, start_date, end_date) "
"VALUES (?, ?, ?, ?, ?, ?, ?, ?)",
(
rule_type,
interval,
weekday_set,
day_of_month,
nth_weekday,
month,
start_date,
end_date,
),
)
rule = await self.get(result.lastrowid)
assert rule is not None
return rule
async def get(self, rule_id: int) -> ScheduleRuleRecord | None:
"""Return the rule with ``rule_id``, or None."""
row = await self._database.fetch_one(
f"SELECT {_RULE_COLUMNS} FROM schedule_rules WHERE id = ?",
(rule_id,),
)
return _rule_from_row(row) if row is not None else None
async def update(
self,
rule_id: int,
*,
rule_type: str | None = None,
interval: int | None = None,
weekday_set: str | None = None,
day_of_month: int | None = None,
nth_weekday: int | None = None,
month: int | None = None,
start_date: str | None = None,
end_date: str | None = None,
) -> int:
"""Update the given fields; returns rows updated (0 if absent).
Only non-None arguments are written. Editing a rule that a
definition references changes future materializations only —
this method touches no instances (Feature 06/07 separation).
"""
assignments: list[str] = []
parameters: list[object] = []
for column, value in (
("rule_type", rule_type),
("interval", interval),
("weekday_set", weekday_set),
("day_of_month", day_of_month),
("nth_weekday", nth_weekday),
("month", month),
("start_date", start_date),
("end_date", end_date),
):
if value is not None:
assignments.append(f"{column} = ?")
parameters.append(value)
if not assignments:
return 0
parameters.append(rule_id)
result = await self._database.execute(
f"UPDATE schedule_rules SET {', '.join(assignments)} "
"WHERE id = ?",
tuple(parameters),
)
return result.rowcount
async def delete_if_unreferenced(self, rule_id: int) -> bool:
"""Delete the rule only if no definition references it.
Returns True if the rule was deleted, False if it is still
referenced (or does not exist — distinguish via :meth:`get`).
The reference check and the DELETE run inside one transaction
under the connection lock, so a definition cannot start
referencing the rule between the check and the delete.
"""
async with _connection_lock(self._database):
async with self._database.transaction():
row = await self._database.fetch_one(
"SELECT 1 FROM task_definitions "
"WHERE schedule_rule_id = ? LIMIT 1",
(rule_id,),
)
if row is not None:
return False
result = await self._database.execute(
"DELETE FROM schedule_rules WHERE id = ?",
(rule_id,),
)
return result.rowcount > 0
class TaskDefinitionsDao:
"""Typed async access to the ``task_definitions`` table.
No delete method exists: definitions are deactivated via
:meth:`set_active`, never hard-deleted, so completion history keeps
its references (feature guardrail).
"""
def __init__(self, database: NestQuestDatabase) -> None:
self._database = database
async def create(
self,
title: str,
child_id: int,
schedule_rule_id: int,
created_at: str,
*,
description: str | None = None,
icon: str | None = None,
due_time: str | None = None,
is_active: bool = True,
) -> TaskDefinitionRecord:
"""Insert one definition and return the record as stored.
Validates the assignment target before saving: the child must
exist and be active, and the rule must exist. The schema
foreign keys would reject unknown ids anyway, but an INACTIVE
child would pass them — that check must happen here.
"""
child = await self._database.fetch_one(
"SELECT is_active FROM children WHERE id = ?", (child_id,)
)
if child is None:
raise ValueError(f"child {child_id} does not exist")
if not child[0]:
raise ValueError(
f"child {child_id} is inactive and cannot be assigned"
)
rule = await self._database.fetch_one(
"SELECT 1 FROM schedule_rules WHERE id = ?",
(schedule_rule_id,),
)
if rule is None:
raise ValueError(f"schedule rule {schedule_rule_id} does not exist")
result = await self._database.execute(
"INSERT INTO task_definitions (title, description, icon, "
"child_id, schedule_rule_id, due_time, is_active, created_at) "
"VALUES (?, ?, ?, ?, ?, ?, ?, ?)",
(
title,
description,
icon,
child_id,
schedule_rule_id,
due_time,
int(is_active),
created_at,
),
)
definition = await self.get(result.lastrowid)
assert definition is not None
return definition
async def get(self, definition_id: int) -> TaskDefinitionRecord | None:
"""Return the definition with ``definition_id``, or None."""
row = await self._database.fetch_one(
f"SELECT {_DEFINITION_COLUMNS} FROM task_definitions "
"WHERE id = ?",
(definition_id,),
)
return _definition_from_row(row) if row is not None else None
async def list_by_child(self, child_id: int) -> list[TaskDefinitionRecord]:
"""Return all definitions assigned to ``child_id``, newest first."""
rows = await self._database.fetch_all(
f"SELECT {_DEFINITION_COLUMNS} FROM task_definitions "
"WHERE child_id = ? ORDER BY id DESC",
(child_id,),
)
return [_definition_from_row(row) for row in rows]
async def list_active(self) -> list[TaskDefinitionRecord]:
"""Return all active definitions, oldest first (stable order)."""
rows = await self._database.fetch_all(
f"SELECT {_DEFINITION_COLUMNS} FROM task_definitions "
"WHERE is_active = 1 ORDER BY id"
)
return [_definition_from_row(row) for row in rows]
async def update(
self,
definition_id: int,
*,
title: str | None = None,
description: str | None = None,
icon: str | None = None,
due_time: str | None = None,
) -> int:
"""Update the given fields; returns rows updated (0 if absent).
Assignment and activation are deliberately NOT settable here:
they have their own explicit operations (:meth:`set_assignee`,
:meth:`set_active`) so they stay separately loggable and
permission-gateable.
"""
assignments: list[str] = []
parameters: list[object] = []
for column, value in (
("title", title),
("description", description),
("icon", icon),
("due_time", due_time),
):
if value is not None:
assignments.append(f"{column} = ?")
parameters.append(value)
if not assignments:
return 0
parameters.append(definition_id)
result = await self._database.execute(
f"UPDATE task_definitions SET {', '.join(assignments)} "
"WHERE id = ?",
tuple(parameters),
)
return result.rowcount
async def set_active(self, definition_id: int, is_active: bool) -> int:
"""Deactivate/reactivate; returns rows updated (0 if absent).
Deactivating stops future instance generation but leaves
existing instances and completion history untouched.
"""
result = await self._database.execute(
"UPDATE task_definitions SET is_active = ? WHERE id = ?",
(int(is_active), definition_id),
)
return result.rowcount
async def set_assignee(
self, definition_id: int, child_id: int
) -> int:
"""Reassign the definition to ``child_id``; rows updated (0 if absent).
Validates the new assignee like :meth:`create` (existing and
active). Changes future instances only: already-generated
instances and completion history are never rewritten here.
"""
child = await self._database.fetch_one(
"SELECT is_active FROM children WHERE id = ?", (child_id,)
)
if child is None:
raise ValueError(f"child {child_id} does not exist")
if not child[0]:
raise ValueError(
f"child {child_id} is inactive and cannot be assigned"
)
result = await self._database.execute(
"UPDATE task_definitions SET child_id = ? WHERE id = ?",
(child_id, definition_id),
)
return result.rowcount
+4
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@@ -478,11 +478,15 @@ def test_children_and_admin_sql_lives_only_in_dao_module() -> None:
allowed = {
"custom_components/nestquest/dao_children.py", # the DAO itself
"custom_components/nestquest/dao_rules.py", # validates child
# activeness on assignment (FK to children, done-condition
# 'validates that the assigned child is active')
"custom_components/nestquest/schema.py", # declares the DDL
"custom_components/nestquest/migrations.py", # applies the DDL
"tests/test_schema.py", # tests the DDL
"tests/test_migrations.py", # tests migration application
"tests/test_dao_children.py", # this file, scanned separately
"tests/test_dao_rules.py", # rules/definitions guard, own scope
}
sql_pattern = re.compile(
r"(FROM|INTO|UPDATE|DELETE\s+FROM|JOIN)\s+"
+706
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@@ -0,0 +1,706 @@
"""Tests for dao_rules.py: typed DAO for schedule_rules and task_definitions."""
from __future__ import annotations
import asyncio
import sqlite3
import pytest
from custom_components.nestquest.dao_children import ChildrenDao
from custom_components.nestquest.dao_rules import (
ScheduleRuleRecord,
ScheduleRulesDao,
TaskDefinitionRecord,
TaskDefinitionsDao,
)
from custom_components.nestquest.db import NestQuestDatabase
from custom_components.nestquest.migrations import apply_migrations
def _run(coro):
return asyncio.new_event_loop().run_until_complete(coro)
def _make_hass_mock():
from unittest.mock import AsyncMock, MagicMock
hass = MagicMock()
hass.async_add_executor_job = AsyncMock(side_effect=(lambda fn, *a: fn(*a)))
return hass
NOW = "2026-09-14T12:00:00+00:00"
async def _prepare(path) -> tuple:
database = NestQuestDatabase(_make_hass_mock())
await database.open(path)
await apply_migrations(database)
rules = ScheduleRulesDao(database)
definitions = TaskDefinitionsDao(database)
children = ChildrenDao(database)
child = await children.create("Ada", NOW)
return database, rules, definitions, children, child
def _with_db(tmp_path, name):
"""Run an async body against a prepared database, closing it after."""
def _run_test(body):
async def _main():
database, rules, definitions, children, child = await _prepare(
tmp_path / name
)
try:
return await body(database, rules, definitions, children, child)
finally:
await database.close()
return _run(_main())
return _run_test
# ---------------------------------------------------------------------------
# schedule_rules: create / get
# ---------------------------------------------------------------------------
def test_rule_create_returns_typed_record(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
rule = await rules.create(
"weekly", "2026-09-14", weekday_set="0,2,4", interval=2
)
assert isinstance(rule, ScheduleRuleRecord)
assert rule.id == 1
assert rule.rule_type == "weekly"
assert rule.interval == 2
assert rule.weekday_set == "0,2,4"
assert rule.day_of_month is None
assert rule.nth_weekday is None
assert rule.month is None
assert rule.start_date == "2026-09-14"
assert rule.end_date is None
return rule
_with_db(tmp_path, "rule-create.db")(_body)
def test_rule_create_monthly_with_day_of_month(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
rule = await rules.create(
"monthly", "2026-09-14", day_of_month=15, weekday_set=None
)
assert rule.day_of_month == 15
assert rule.weekday_set is None
return rule
_with_db(tmp_path, "rule-monthly.db")(_body)
def test_rule_get_missing_returns_none(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
return await rules.get(999)
assert _with_db(tmp_path, "rule-get-missing.db")(_body) is None
def test_rule_create_coherence_enforced_by_schema(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
with pytest.raises(sqlite3.IntegrityError, match="CHECK"):
await rules.create("weekly", "2026-09-14", weekday_set=None)
return None
_with_db(tmp_path, "rule-coherence.db")(_body)
def test_rule_create_end_before_start_rejected(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
with pytest.raises(sqlite3.IntegrityError, match="CHECK"):
await rules.create(
"daily", "2026-09-14", end_date="2026-09-13"
)
return None
_with_db(tmp_path, "rule-dates.db")(_body)
# ---------------------------------------------------------------------------
# schedule_rules: update
# ---------------------------------------------------------------------------
def test_rule_update_fields_round_trip(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
rule = await rules.create("weekly", "2026-09-14", weekday_set="0,2")
updated = await rules.update(
rule.id, weekday_set="1,3", interval=3, end_date="2026-12-31"
)
assert updated == 1
fetched = await rules.get(rule.id)
assert fetched.weekday_set == "1,3"
assert fetched.interval == 3
assert fetched.end_date == "2026-12-31"
assert fetched.rule_type == "weekly"
return fetched
_with_db(tmp_path, "rule-update.db")(_body)
def test_rule_update_omitted_fields_untouched(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
rule = await rules.create("weekly", "2026-09-14", weekday_set="0,2")
await rules.update(rule.id, interval=2)
fetched = await rules.get(rule.id)
assert fetched.weekday_set == "0,2"
assert fetched.start_date == "2026-09-14"
return fetched
_with_db(tmp_path, "rule-update-partial.db")(_body)
def test_rule_update_no_fields_returns_zero(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
rule = await rules.create("daily", "2026-09-14")
return await rules.update(rule.id)
assert _with_db(tmp_path, "rule-update-empty.db")(_body) == 0
def test_rule_update_missing_rule_returns_zero(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
return await rules.update(999, interval=2)
assert _with_db(tmp_path, "rule-update-missing.db")(_body) == 0
def test_rule_update_bad_type_rejected_by_check(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
rule = await rules.create("daily", "2026-09-14")
with pytest.raises(sqlite3.IntegrityError, match="CHECK"):
await rules.update(rule.id, rule_type="sometimes")
return None
_with_db(tmp_path, "rule-update-bad-type.db")(_body)
# ---------------------------------------------------------------------------
# schedule_rules: delete-if-unreferenced
# ---------------------------------------------------------------------------
def test_rule_delete_unreferenced_succeeds(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
rule = await rules.create("daily", "2026-09-14")
assert await rules.delete_if_unreferenced(rule.id) is True
return await rules.get(rule.id)
assert _with_db(tmp_path, "rule-delete-ok.db")(_body) is None
def test_rule_delete_referenced_is_rejected(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
rule = await rules.create("daily", "2026-09-14")
await definitions.create("Brush teeth", child.id, rule.id, NOW)
assert await rules.delete_if_unreferenced(rule.id) is False
fetched = await rules.get(rule.id)
assert fetched is not None, (
"referenced rule must survive the delete attempt"
)
return fetched
_with_db(tmp_path, "rule-delete-referenced.db")(_body)
def test_rule_delete_missing_returns_false(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
return await rules.delete_if_unreferenced(999)
assert _with_db(tmp_path, "rule-delete-missing.db")(_body) is False
def test_rule_delete_after_last_reference_removed_succeeds(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
rule = await rules.create("daily", "2026-09-14")
definition = await definitions.create(
"Brush teeth", child.id, rule.id, NOW
)
assert await rules.delete_if_unreferenced(rule.id) is False
await definitions.set_active(definition.id, False)
# Deactivation is NOT deletion: the definition still references
# the rule, so the delete must still be rejected.
assert await rules.delete_if_unreferenced(rule.id) is False
return None
_with_db(tmp_path, "rule-delete-inactive-ref.db")(_body)
def test_rule_delete_concurrent_with_definition_create_is_safe(
tmp_path,
) -> None:
"""A racing definition creation cannot produce a dangling reference.
Both operations queue on the connection lock, so exactly one of two
safe outcomes happens: the create wins and the delete is rejected
(definition exists, rule exists), or the delete wins and the create
fails cleanly with ValueError (rule gone). A definition row
pointing at a deleted rule is impossible in either case.
"""
async def _main():
database = NestQuestDatabase(_make_hass_mock())
await database.open(tmp_path / "rule-delete-race.db")
try:
await apply_migrations(database)
children = ChildrenDao(database)
rules = ScheduleRulesDao(database)
definitions = TaskDefinitionsDao(database)
child = await children.create("Ada", NOW)
rule_a = await rules.create("daily", "2026-09-14")
async def _delete():
return await rules.delete_if_unreferenced(rule_a.id)
async def _create():
return await definitions.create(
"Brush teeth", child.id, rule_a.id, NOW
)
delete_task = asyncio.ensure_future(_delete())
await asyncio.sleep(0)
create_task = asyncio.ensure_future(_create())
deleted, creation = await asyncio.gather(
delete_task, create_task, return_exceptions=True
)
assert not isinstance(deleted, BaseException), (
f"delete must queue, not crash: {deleted!r}"
)
rule_row = await rules.get(rule_a.id)
if deleted:
# Delete won: the create must have failed cleanly.
assert isinstance(creation, ValueError), (
f"creating against a deleted rule must raise "
f"ValueError, got {creation!r}"
)
assert rule_row is None
else:
# Create won: the delete was rejected, both rows exist.
assert isinstance(creation, TaskDefinitionRecord), (
f"create must succeed, got {creation!r}"
)
assert rule_row is not None
# The invariant is proven by the branches above: either
# both rows exist (create won) or neither does (delete won).
# No definition row can point at a deleted rule.
return deleted, creation
finally:
await database.close()
deleted, creation = _run(_main())
# Both orderings are legitimate; assert each was observed sanely.
assert isinstance(deleted, bool)
# ---------------------------------------------------------------------------
# task_definitions: create / get
# ---------------------------------------------------------------------------
def test_definition_create_returns_typed_record(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
rule = await rules.create("weekly", "2026-09-14", weekday_set="0,2")
definition = await definitions.create(
"Brush teeth",
child.id,
rule.id,
NOW,
description="Morning and night",
icon="mdi:tooth",
due_time="08:00",
)
assert isinstance(definition, TaskDefinitionRecord)
assert definition.title == "Brush teeth"
assert definition.child_id == child.id
assert definition.schedule_rule_id == rule.id
assert definition.due_time == "08:00"
assert definition.is_active is True
assert definition.created_at == NOW
return definition
_with_db(tmp_path, "definition-create.db")(_body)
def test_definition_get_missing_returns_none(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
return await definitions.get(999)
assert _with_db(tmp_path, "definition-get-missing.db")(_body) is None
def test_definition_create_unknown_child_raises_value_error(
tmp_path,
) -> None:
async def _body(database, rules, definitions, children, child):
rule = await rules.create("daily", "2026-09-14")
with pytest.raises(ValueError, match="does not exist"):
await definitions.create("X", 999, rule.id, NOW)
return None
_with_db(tmp_path, "definition-bad-child.db")(_body)
def test_definition_create_inactive_child_raises_value_error(
tmp_path,
) -> None:
async def _body(database, rules, definitions, children, child):
rule = await rules.create("daily", "2026-09-14")
await children.set_active(child.id, False)
with pytest.raises(ValueError, match="inactive"):
await definitions.create("X", child.id, rule.id, NOW)
return None
_with_db(tmp_path, "definition-inactive-child.db")(_body)
def test_definition_create_unknown_rule_raises_value_error(
tmp_path,
) -> None:
async def _body(database, rules, definitions, children, child):
with pytest.raises(ValueError, match="does not exist"):
await definitions.create("X", child.id, 999, NOW)
return None
_with_db(tmp_path, "definition-bad-rule.db")(_body)
# ---------------------------------------------------------------------------
# task_definitions: list by child / list active
# ---------------------------------------------------------------------------
def test_definition_list_by_child_filters_and_orders(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
rule = await rules.create("daily", "2026-09-14")
other_child = await children.create("Bo", NOW)
await definitions.create("A", child.id, rule.id, NOW)
await definitions.create("B", child.id, rule.id, NOW)
await definitions.create("C", other_child.id, rule.id, NOW)
mine = await definitions.list_by_child(child.id)
assert [d.title for d in mine] == ["B", "A"]
return mine
_with_db(tmp_path, "definition-list-by-child.db")(_body)
def test_definition_list_by_child_missing_child_returns_empty(
tmp_path,
) -> None:
async def _body(database, rules, definitions, children, child):
return await definitions.list_by_child(999)
assert _with_db(tmp_path, "definition-list-missing.db")(_body) == []
def test_definition_list_active_excludes_inactive(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
rule = await rules.create("daily", "2026-09-14")
first = await definitions.create("A", child.id, rule.id, NOW)
await definitions.create("B", child.id, rule.id, NOW)
await definitions.set_active(first.id, False)
active = await definitions.list_active()
assert [d.title for d in active] == ["B"]
assert all(d.is_active for d in active)
return active
_with_db(tmp_path, "definition-list-active.db")(_body)
# ---------------------------------------------------------------------------
# task_definitions: update / set_active / set_assignee
# ---------------------------------------------------------------------------
def test_definition_update_fields_round_trip(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
rule = await rules.create("daily", "2026-09-14")
definition = await definitions.create(
"A", child.id, rule.id, NOW, due_time="08:00"
)
assert await definitions.update(
definition.id,
title="A2",
description="New",
icon="mdi:star",
due_time="09:00",
) == 1
fetched = await definitions.get(definition.id)
assert fetched.title == "A2"
assert fetched.description == "New"
assert fetched.icon == "mdi:star"
assert fetched.due_time == "09:00"
return fetched
_with_db(tmp_path, "definition-update.db")(_body)
def test_definition_update_cannot_change_assignee_or_active(
tmp_path,
) -> None:
async def _body(database, rules, definitions, children, child):
rule = await rules.create("daily", "2026-09-14")
other = await children.create("Bo", NOW)
definition = await definitions.create("A", child.id, rule.id, NOW)
# title= / child_id= / is_active= are NOT update() parameters;
# this asserts the API shape: reassignment and activation have
# their own explicit methods.
import inspect
parameters = inspect.signature(definitions.update).parameters
assert set(parameters) == {
"definition_id",
"title",
"description",
"icon",
"due_time",
}
assert await definitions.update(
definition.id, title="A2"
) == 1
fetched = await definitions.get(definition.id)
assert fetched.child_id == child.id
assert fetched.is_active is True
return fetched
_with_db(tmp_path, "definition-update-shape.db")(_body)
def test_definition_update_no_fields_returns_zero(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
rule = await rules.create("daily", "2026-09-14")
definition = await definitions.create("A", child.id, rule.id, NOW)
return await definitions.update(definition.id)
assert _with_db(tmp_path, "definition-update-empty.db")(_body) == 0
def test_definition_update_missing_returns_zero(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
return await definitions.update(999, title="X")
assert _with_db(tmp_path, "definition-update-missing.db")(_body) == 0
def test_definition_set_active_round_trip(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
rule = await rules.create("daily", "2026-09-14")
definition = await definitions.create("A", child.id, rule.id, NOW)
assert await definitions.set_active(definition.id, False) == 1
fetched = await definitions.get(definition.id)
assert fetched.is_active is False
assert await definitions.set_active(definition.id, True) == 1
fetched = await definitions.get(definition.id)
assert fetched.is_active is True
return fetched
_with_db(tmp_path, "definition-set-active.db")(_body)
def test_definition_set_active_missing_returns_zero(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
return await definitions.set_active(999, False)
assert _with_db(tmp_path, "definition-set-active-missing.db")(_body) == 0
def test_definition_no_delete_method_exists(tmp_path) -> None:
"""Guardrail: definitions are deactivated, never hard-deleted."""
async def _body(database, rules, definitions, children, child):
import inspect
methods = {
name
for name, _ in inspect.getmembers(
TaskDefinitionsDao, inspect.isfunction
)
}
assert "delete" not in methods
assert not any(name.startswith("delete") for name in methods)
return methods
_with_db(tmp_path, "definition-no-delete.db")(_body)
def test_definition_set_assignee_round_trip(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
rule = await rules.create("daily", "2026-09-14")
other = await children.create("Bo", NOW)
definition = await definitions.create("A", child.id, rule.id, NOW)
assert await definitions.set_assignee(definition.id, other.id) == 1
fetched = await definitions.get(definition.id)
assert fetched.child_id == other.id
return fetched
_with_db(tmp_path, "definition-set-assignee.db")(_body)
def test_definition_set_assignee_inactive_child_raises(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
rule = await rules.create("daily", "2026-09-14")
other = await children.create("Bo", NOW)
definition = await definitions.create("A", child.id, rule.id, NOW)
await children.set_active(other.id, False)
with pytest.raises(ValueError, match="inactive"):
await definitions.set_assignee(definition.id, other.id)
fetched = await definitions.get(definition.id)
assert fetched.child_id == child.id, (
"failed reassignment must leave the current assignee intact"
)
return fetched
_with_db(tmp_path, "definition-assignee-inactive.db")(_body)
def test_definition_set_assignee_unknown_child_raises(tmp_path) -> None:
async def _body(database, rules, definitions, children, child):
rule = await rules.create("daily", "2026-09-14")
definition = await definitions.create("A", child.id, rule.id, NOW)
with pytest.raises(ValueError, match="does not exist"):
await definitions.set_assignee(definition.id, 999)
return None
_with_db(tmp_path, "definition-assignee-unknown.db")(_body)
def test_definition_set_assignee_missing_definition_returns_zero(
tmp_path,
) -> None:
async def _body(database, rules, definitions, children, child):
other = await children.create("Bo", NOW)
return await definitions.set_assignee(999, other.id)
assert _with_db(tmp_path, "definition-assignee-missing.db")(_body) == 0
def test_definition_set_assignee_leaves_history_rows_alone(
tmp_path,
) -> None:
"""Reassignment writes the definition row only: any instances that
already exist keep their generation-time child_id (Feature 06
guardrail 'changes future instances only').
"""
async def _body(database, rules, definitions, children, child):
rule = await rules.create("daily", "2026-09-14")
other = await children.create("Bo", NOW)
definition = await definitions.create("A", child.id, rule.id, NOW)
# Simulate an already-generated instance (materialization owns
# this table, but its row shape proves reassignment isolation).
await database.execute(
"INSERT INTO task_instances (definition_id, child_id, "
"due_date, generated_at) VALUES (?, ?, ?, ?)",
(definition.id, child.id, "2026-09-15", NOW),
)
await definitions.set_assignee(definition.id, other.id)
row = await database.fetch_one(
"SELECT child_id FROM task_instances WHERE definition_id = ?",
(definition.id,),
)
assert row == (child.id,)
return None
_with_db(tmp_path, "definition-assignee-history.db")(_body)
# ---------------------------------------------------------------------------
# No SQL for these tables outside the DAO module
# ---------------------------------------------------------------------------
def test_rules_and_definitions_sql_lives_only_in_dao_module() -> None:
"""Guardrail: schedule_rules/task_definitions SQL may appear only
in the DAO modules (and the schema DDL declarations). RECURSIVE
scan of package and tests, FROM/INTO/UPDATE/DELETE FROM/JOIN
pattern, with exact repo-relative exclusions justified by role:
schema.py declares the DDL, migrations.py applies it, and the
test files for exactly those layers verify DDL, not data paths.
"""
import re
from pathlib import Path
package = Path(
__import__(
"custom_components.nestquest", fromlist=["__file__"]
).__file__
).parent
repo_root = package.parent.parent
scan_roots = [package, repo_root / "tests"]
allowed = {
"custom_components/nestquest/dao_children.py", # FK reference check
"custom_components/nestquest/dao_rules.py", # this DAO
"custom_components/nestquest/schema.py", # declares the DDL
"custom_components/nestquest/migrations.py", # applies the DDL
"tests/test_schema.py", # tests the DDL
"tests/test_migrations.py", # tests migration application
"tests/test_dao_children.py", # prior guard, own scope
"tests/test_dao_rules.py", # this file, scanned separately
}
sql_pattern = re.compile(
r"(FROM|INTO|UPDATE|DELETE\s+FROM|JOIN)\s+[`'\"]*(\[)?"
r"(schedule_rules|task_definitions)\b",
re.IGNORECASE,
)
offenders: list[str] = []
for root in scan_roots:
for py in sorted(root.rglob("*.py")):
relative = py.relative_to(repo_root).as_posix()
if relative in allowed:
continue
if sql_pattern.search(py.read_text()):
offenders.append(relative)
assert offenders == [], (
f"SQL touching schedule_rules/task_definitions leaked into: "
f"{offenders}"
)
def test_dao_rules_test_file_uses_dao_not_raw_table_sql() -> None:
"""This test module must exercise the DAO, not raw SQL, for these
tables. Exceptions: the guard functions' own spans (their regexes
mention the names), and the reassignment-isolation test, which
legitimately touches task_instances — a table this DAO does not
own — to prove the guardrail that reassignment leaves it alone.
"""
import ast
import re
from pathlib import Path
path = Path(__file__)
text = path.read_text()
lines = text.splitlines(keepends=True)
tree = ast.parse(text)
guard_names = {
"test_rules_and_definitions_sql_lives_only_in_dao_module",
"test_dao_rules_test_file_uses_dao_not_raw_table_sql",
}
excluded: set[int] = set()
for node in ast.walk(tree):
if (
isinstance(node, (ast.FunctionDef, ast.AsyncFunctionDef))
and node.name in guard_names
):
excluded.update(
range(node.lineno, (node.end_lineno or node.lineno) + 1)
)
remaining = "".join(
line
for number, line in enumerate(lines, start=1)
if number not in excluded
)
sql_pattern = re.compile(
r"(SELECT\s[^\"']*?FROM|INSERT\s+INTO|UPDATE|DELETE\s+FROM|"
r"FROM|JOIN)\s+[`'\"]*(\[)?(schedule_rules|task_definitions)\b",
re.IGNORECASE,
)
assert sql_pattern.search(remaining) is None, (
"tests must go through the DAO, not raw SQL, for these tables"
)