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https://github.com/kuhyx/utils.git
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Krzysztof kuhy Rudnicki
5be99ab11d
crdt_sync_dart: new domain-agnostic LogStore -- an in-memory Log with a reactive changes stream and upsert/delete(sticky tombstone)/replaceAll, behind an injectable LogPersistence port -- plus logToJson/logFromJson. FileLogPersistence (atomic temp-file-then-rename, generalizing diet_guard's LogStorageService) lives behind a separate crdt_sync_io.dart entrypoint so the core barrel stays pure Dart / web-safe. crdt-sync (Python): mirror dump_log/load_log/read_log/write_log sharing the same on-disk JSON format so a log written on one side parses on the other. Load/save only -- the reactive store is a Dart/Flutter convenience with no Python equivalent by design (Python consumers are headless sync ticks). Querying stays app-side: a Record's fields are opaque to the library, so filtering/sorting/search is the caller's job over LogStore.values. Both packages bumped to 0.2.0. 83 Dart tests + 71 Python tests (100% branch coverage) green. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019KwUCPESvE5CjCtmUFz8xQ
84 lines
2.5 KiB
Python
84 lines
2.5 KiB
Python
"""Tests for local Log persistence (dump/load and atomic file read/write)."""
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from __future__ import annotations
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import json
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from typing import TYPE_CHECKING
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import pytest
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from crdt_sync import (
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Record,
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dump_log,
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load_log,
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read_log,
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write_log,
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)
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if TYPE_CHECKING:
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from collections.abc import Callable
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from pathlib import Path
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from crdt_sync import Hlc, Log
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def _sample_log(make_hlc: Callable[..., Hlc]) -> Log:
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return {
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"a": Record(id="a", fields={"text": ("alpha", make_hlc(100))}),
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"b": Record(id="b", fields={}, deleted=True, deleted_hlc=make_hlc(200)),
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}
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class TestDumpLoad:
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def test_round_trips_a_log(self, make_hlc: Callable[..., Hlc]) -> None:
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log = _sample_log(make_hlc)
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assert load_log(dump_log(log)) == log
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def test_load_raises_on_non_json(self) -> None:
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# json.loads raises JSONDecodeError (a ValueError subclass).
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with pytest.raises(json.JSONDecodeError):
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load_log("{not json")
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def test_load_raises_typeerror_on_wrong_shape(self) -> None:
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# Valid JSON, but a list where an id->record map is expected.
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with pytest.raises(TypeError):
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load_log("[]")
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class TestReadWrite:
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def test_write_then_read_round_trips(
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self, tmp_path: Path, make_hlc: Callable[..., Hlc]
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) -> None:
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log = _sample_log(make_hlc)
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path = tmp_path / "nested" / "log.json"
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write_log(path, log)
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assert read_log(path) == log
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def test_write_creates_parent_directories(
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self, tmp_path: Path, make_hlc: Callable[..., Hlc]
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) -> None:
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path = tmp_path / "deep" / "nested" / "log.json"
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write_log(path, _sample_log(make_hlc))
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assert path.exists()
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def test_write_overwrites_atomically(
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self, tmp_path: Path, make_hlc: Callable[..., Hlc]
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) -> None:
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path = tmp_path / "log.json"
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write_log(path, {"a": Record(id="a", fields={})})
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write_log(path, _sample_log(make_hlc))
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assert set(read_log(path)) == {"a", "b"}
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def test_read_of_missing_file_is_empty(self, tmp_path: Path) -> None:
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assert read_log(tmp_path / "nope.json") == {}
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def test_read_of_corrupt_file_is_empty(self, tmp_path: Path) -> None:
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path = tmp_path / "log.json"
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path.write_text("{not json", encoding="utf-8")
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assert read_log(path) == {}
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def test_read_of_wrong_shape_file_is_empty(self, tmp_path: Path) -> None:
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path = tmp_path / "log.json"
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path.write_text("[]", encoding="utf-8")
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assert read_log(path) == {}
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