Files
kanta/tests/test_callbacks.py
T
Leo Vasanko 9c0b47ce38 Add kanta.bootstrap logger and configurable logging setup
- Bootstrap records are now logged via kanta.bootstrap at INFO level.
- Existing databases log 'Using <path>' at DEBUG on kanta.bootstrap.
- New databases log 'Created <path>' at INFO on kanta.bootstrap.
- Renamed loggers: kanta.changes -> kanta.transaction, kanta.migrations -> kanta.migration.
- configure_logging() gains bootstrap/migration/transaction/skiproot kwargs.
- Default configure_logging() attaches a no-prefix stderr handler to kanta and stops propagation.
- With skiproot=False, child logger propagation flags are still applied but kanta itself is left untouched.
- Updated tests and docstrings.
2026-06-20 19:10:58 +00:00

352 lines
9.4 KiB
Python

from typing import Any, Optional, Union
import pytest
from kanta import Kanta
from kanta.callbacks import DictPost, DictPre, LogFmt
from kanta.exceptions import DatabaseError
from .support import Data, User, make_kanta
def test_bootstrap_rejects_unannotated_param(tmp_path, format_config):
kanta = make_kanta(tmp_path / "test.db", Data, format_config)
with pytest.raises(TypeError, match="without an annotation or default"):
@kanta.bootstrap
def seed(data):
data.counter = 1
def test_bootstrap_accepts_unknown_with_default(tmp_path, format_config):
kanta = make_kanta(tmp_path / "test.db", Data, format_config)
@kanta.bootstrap
def seed(data: Data, extra: int = 0) -> None:
data.counter = extra + 1
# Should register without error.
def test_bootstrap_rejects_unknown_annotation(tmp_path, format_config):
kanta = make_kanta(tmp_path / "test.db", Data, format_config)
with pytest.raises(TypeError, match="unsupported annotation"):
@kanta.bootstrap
def seed(data: int):
pass
def test_logfmt_requires_value_annotation(tmp_path, format_config):
kanta = make_kanta(tmp_path / "test.db", Data, format_config)
with pytest.raises(TypeError, match="value parameter.*must be annotated"):
@kanta.logfmt
def resolve_names(previous: DictPre, current: DictPost) -> str | None:
return None
def test_logfmt_allows_missing_return_annotation(tmp_path, format_config):
kanta = make_kanta(tmp_path / "test.db", Data, format_config)
@kanta.logfmt
def resolve_names(value: str, current: DictPost):
return None
def test_logfmt_class_allows_missing_return_annotation(tmp_path, format_config):
kanta = make_kanta(tmp_path / "test.db", Data, format_config)
@kanta.logfmt
class UserLogFmt(LogFmt):
def resolve(self, value: str, path: str):
return None
# fmt: off
def test_logfmt_accepts_optional_return_typing_forms(tmp_path, format_config):
kanta = make_kanta(tmp_path / "test.db", Data, format_config)
@kanta.logfmt
def resolve_optional(value: str) -> Optional[str]: # noqa: UP007
return value
@kanta.logfmt
def resolve_union(value: str) -> Union[str, None]: # noqa: UP007
return value
@kanta.logfmt
def resolve_pipe(value: "str") -> "str | None":
return value
def test_logfmt_class_accepts_optional_return_typing_forms(tmp_path, format_config):
kanta = make_kanta(tmp_path / "test.db", Data, format_config)
@kanta.logfmt
class OptionalStyle(LogFmt):
def resolve(self, value: str, path: str) -> Optional[str]: # noqa: UP007
return value
@kanta.logfmt
class UnionStyle(LogFmt):
def resolve(self, value: str, path: str) -> Union[str, None]: # noqa: UP007
return value
@kanta.logfmt
class StringStyle(LogFmt):
def resolve(self, value: "str", path: "str") -> "str | None":
return value
# fmt: on
def test_logfmt_rejects_async_callback(tmp_path, format_config):
kanta = make_kanta(tmp_path / "test.db", Data, format_config)
with pytest.raises(TypeError, match="must not be async"):
@kanta.logfmt
async def resolve_names(value: str, current: DictPost) -> str | None:
return None
@pytest.mark.asyncio
async def test_bootstrap_injects_data_by_type(tmp_path, format_config):
path = tmp_path / "test.db"
kanta = make_kanta(path, Data, format_config)
@kanta.bootstrap
def seed(data: Data) -> None:
data.counter = 7
await kanta.open()
assert kanta.data.counter == 7
await kanta.close()
@pytest.mark.asyncio
async def test_bootstrap_injects_kanta(tmp_path, format_config):
path = tmp_path / "test.db"
kanta = make_kanta(path, Data, format_config)
seen: list[Kanta] = []
@kanta.bootstrap
def seed(data: Data, kanta_ref: Kanta) -> None:
seen.append(kanta_ref)
data.counter = 8
await kanta.open()
assert seen == [kanta]
assert kanta.data.counter == 8
await kanta.close()
@pytest.mark.asyncio
async def test_logfmt_injects_states(tmp_path, format_config, caplog):
import logging
caplog.set_level(logging.INFO, logger="kanta.transaction")
path = tmp_path / "test.db"
kanta = make_kanta(path, Data, format_config)
@kanta.logfmt
def resolve_users(value: str, current: DictPost) -> str | None:
return current.get("users", {}).get(value, {}).get("name")
await kanta.open()
with kanta.transaction(action="create_user") as data:
data.users["uuid-1"] = User(name="Alice")
await kanta.close()
assert "Alice" in caplog.text
@pytest.mark.asyncio
async def test_logfmt_class_injection(tmp_path, format_config, caplog):
import logging
caplog.set_level(logging.INFO, logger="kanta.transaction")
path = tmp_path / "test.db"
kanta = make_kanta(path, Data, format_config)
@kanta.logfmt
class UserLogFmt(LogFmt):
def resolve(self, value: str, path: str) -> str | None:
if not isinstance(value, str):
return None
return self.current_state.get("users", {}).get(value, {}).get("name")
await kanta.open()
with kanta.transaction(action="create_user") as data:
data.users["uuid-2"] = User(name="Bob")
await kanta.close()
assert "Bob" in caplog.text
@pytest.mark.asyncio
async def test_multiple_logfmt_chain(tmp_path, format_config, caplog):
import logging
caplog.set_level(logging.INFO, logger="kanta.transaction")
path = tmp_path / "test.db"
kanta = make_kanta(path, Data, format_config)
@kanta.logfmt
def resolve_a(value: str) -> str | None:
return "A" if value == "a" else None
@kanta.logfmt
def resolve_b(value: str) -> str | None:
return "B" if value == "b" else None
await kanta.open()
with kanta.transaction(action="create_user") as data:
data.users["a"] = User(name="first")
data.users["b"] = User(name="second")
await kanta.close()
assert "A" in caplog.text
assert "B" in caplog.text
@pytest.mark.asyncio
async def test_logfmt_path_context(tmp_path, format_config, caplog):
import logging
caplog.set_level(logging.INFO, logger="kanta.transaction")
path = tmp_path / "test.db"
kanta = make_kanta(path, Data, format_config)
@kanta.logfmt(path="users.uuid-1")
def resolve_user_key(value: str) -> str | None:
if value == "uuid-1":
return "user-alice"
return None
await kanta.open()
with kanta.transaction(action="create_user") as data:
data.users["uuid-1"] = User(name="Alice")
await kanta.close()
assert "user-alice" in caplog.text
@pytest.mark.asyncio
async def test_logfmt_decorator_path_filters_calls(tmp_path, format_config, caplog):
import logging
caplog.set_level(logging.INFO, logger="kanta.transaction")
path = tmp_path / "test.db"
kanta = make_kanta(path, Data, format_config)
@kanta.logfmt(path="counter")
def fmt_counter(value: Any) -> str | None:
if value == 1:
return "one"
return None
await kanta.open()
with kanta.transaction(action="create_user") as data:
data.users["uuid-1"] = User(name="Alice")
data.counter = 1
await kanta.close()
assert "one" in caplog.text
assert "uuid-1" in caplog.text
@pytest.mark.asyncio
async def test_logfmt_user_path_replaces_user_display(tmp_path, format_config, caplog):
import logging
caplog.set_level(logging.INFO, logger="kanta.transaction")
path = tmp_path / "test.db"
kanta = make_kanta(path, Data, format_config)
@kanta.logfmt(path="$user")
def resolve_user(value: str, current: DictPost) -> str | None:
return current.get("users", {}).get(value, {}).get("name")
await kanta.open()
with kanta.transaction(action="create_user", user="uuid-1") as data:
data.users["uuid-1"] = User(name="Alice")
await kanta.close()
assert "by Alice" in caplog.text
@pytest.mark.asyncio
async def test_logfmt_non_string_value(tmp_path, format_config, caplog):
import logging
caplog.set_level(logging.INFO, logger="kanta.transaction")
path = tmp_path / "test.db"
kanta = make_kanta(path, Data, format_config)
@kanta.logfmt
def fmt_count(value: Any, path: str) -> str | None:
if path == "counter" and value == 1:
return "one"
return None
await kanta.open()
with kanta.transaction(action="inc") as data:
data.counter = 1
await kanta.close()
assert "one" in caplog.text
@pytest.mark.asyncio
async def test_fatal_error_injects_kanta_and_error(
tmp_path, format_config, monkeypatch
):
import asyncio
path = tmp_path / "test.db"
errors: list[DatabaseError] = []
kantas: list[Kanta] = []
signaled = asyncio.Event()
kanta = make_kanta(path, Data, format_config, flush_interval=0.01)
@kanta.fatal_error
def on_fatal(error: DatabaseError, kanta_ref: Kanta) -> None:
errors.append(error)
kantas.append(kanta_ref)
signaled.set()
await kanta.open()
with kanta.transaction(action="inc") as data:
data.counter = 1
def fail_write(_data: bytes) -> None:
raise OSError("simulated background write failure")
monkeypatch.setattr(kanta._impl.file, "write", fail_write)
await asyncio.wait_for(signaled.wait(), timeout=1.0)
assert errors
assert kantas == [kanta]
await kanta.close()