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the-nexus/nexus/mnemosyne/tests/test_ingest_file.py
Claude (Opus 4.6) 75f11b4f48
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[claude] Mnemosyne file-based document ingestion pipeline (#1275) (#1276)
2026-04-12 11:50:16 +00:00

242 lines
7.8 KiB
Python

"""Tests for file-based ingestion pipeline (ingest_file / ingest_directory)."""
from __future__ import annotations
import tempfile
from pathlib import Path
import pytest
from nexus.mnemosyne.archive import MnemosyneArchive
from nexus.mnemosyne.ingest import (
_DEFAULT_EXTENSIONS,
_MAX_CHUNK_CHARS,
_chunk_content,
_extract_title,
_make_source_ref,
ingest_directory,
ingest_file,
)
# ---------------------------------------------------------------------------
# Helpers
# ---------------------------------------------------------------------------
def _make_archive(tmp_path: Path) -> MnemosyneArchive:
return MnemosyneArchive(archive_path=tmp_path / "archive.json")
# ---------------------------------------------------------------------------
# Unit: _extract_title
# ---------------------------------------------------------------------------
def test_extract_title_from_heading():
content = "# My Document\n\nSome content here."
assert _extract_title(content, Path("ignored.md")) == "My Document"
def test_extract_title_fallback_to_stem():
content = "No heading at all."
assert _extract_title(content, Path("/docs/my_notes.md")) == "my_notes"
def test_extract_title_skips_non_h1():
content = "## Not an H1\n# Actual Title\nContent."
assert _extract_title(content, Path("x.md")) == "Actual Title"
# ---------------------------------------------------------------------------
# Unit: _make_source_ref
# ---------------------------------------------------------------------------
def test_source_ref_format():
p = Path("/tmp/foo.md")
ref = _make_source_ref(p, 1234567890.9)
assert ref == "file:/tmp/foo.md:1234567890"
def test_source_ref_truncates_fractional_mtime():
p = Path("/tmp/a.txt")
assert _make_source_ref(p, 100.99) == _make_source_ref(p, 100.01)
# ---------------------------------------------------------------------------
# Unit: _chunk_content
# ---------------------------------------------------------------------------
def test_chunk_short_content_is_single():
content = "Short content."
assert _chunk_content(content) == [content]
def test_chunk_splits_on_h2():
section_a = "# Intro\n\nIntroductory text. " + "x" * 100
section_b = "## Section B\n\nBody of section B. " + "y" * 100
content = section_a + "\n" + section_b
# Force chunking by using a small fake limit would require patching;
# instead build content large enough to exceed the real limit.
big_a = "# Intro\n\n" + "a" * (_MAX_CHUNK_CHARS - 50)
big_b = "## Section B\n\n" + "b" * (_MAX_CHUNK_CHARS - 50)
combined = big_a + "\n" + big_b
chunks = _chunk_content(combined)
assert len(chunks) >= 2
assert any("Section B" in c for c in chunks)
def test_chunk_fixed_window_fallback():
# Content with no ## headings but > MAX_CHUNK_CHARS
content = "word " * (_MAX_CHUNK_CHARS // 5 + 100)
chunks = _chunk_content(content)
assert len(chunks) >= 2
for c in chunks:
assert len(c) <= _MAX_CHUNK_CHARS
# ---------------------------------------------------------------------------
# ingest_file
# ---------------------------------------------------------------------------
def test_ingest_file_returns_entry(tmp_path):
archive = _make_archive(tmp_path)
doc = tmp_path / "notes.md"
doc.write_text("# My Notes\n\nHello world.")
entries = ingest_file(archive, doc)
assert len(entries) == 1
assert entries[0].title == "My Notes"
assert entries[0].source == "file"
assert "Hello world" in entries[0].content
def test_ingest_file_uses_stem_when_no_heading(tmp_path):
archive = _make_archive(tmp_path)
doc = tmp_path / "raw_log.txt"
doc.write_text("Just some plain text without a heading.")
entries = ingest_file(archive, doc)
assert entries[0].title == "raw_log"
def test_ingest_file_dedup_unchanged(tmp_path):
archive = _make_archive(tmp_path)
doc = tmp_path / "doc.md"
doc.write_text("# Title\n\nContent.")
entries1 = ingest_file(archive, doc)
assert archive.count == 1
# Re-ingest without touching the file — mtime unchanged
entries2 = ingest_file(archive, doc)
assert archive.count == 1 # no duplicate
assert entries2[0].id == entries1[0].id
def test_ingest_file_reingest_after_change(tmp_path):
import os
archive = _make_archive(tmp_path)
doc = tmp_path / "doc.md"
doc.write_text("# Title\n\nOriginal content.")
ingest_file(archive, doc)
assert archive.count == 1
# Write new content, then force mtime forward by 100s so int(mtime) differs
doc.write_text("# Title\n\nUpdated content.")
new_mtime = doc.stat().st_mtime + 100
os.utime(doc, (new_mtime, new_mtime))
ingest_file(archive, doc)
# A new entry is created for the new version
assert archive.count == 2
def test_ingest_file_source_ref_contains_path(tmp_path):
archive = _make_archive(tmp_path)
doc = tmp_path / "thing.txt"
doc.write_text("Plain text.")
entries = ingest_file(archive, doc)
assert str(doc) in entries[0].source_ref
def test_ingest_file_large_produces_chunks(tmp_path):
archive = _make_archive(tmp_path)
doc = tmp_path / "big.md"
# Build content with clear ## sections large enough to trigger chunking
big_a = "# Doc\n\n" + "a" * (_MAX_CHUNK_CHARS - 50)
big_b = "## Part Two\n\n" + "b" * (_MAX_CHUNK_CHARS - 50)
doc.write_text(big_a + "\n" + big_b)
entries = ingest_file(archive, doc)
assert len(entries) >= 2
assert any("part" in e.title.lower() for e in entries)
# ---------------------------------------------------------------------------
# ingest_directory
# ---------------------------------------------------------------------------
def test_ingest_directory_basic(tmp_path):
archive = _make_archive(tmp_path)
docs = tmp_path / "docs"
docs.mkdir()
(docs / "a.md").write_text("# Alpha\n\nFirst doc.")
(docs / "b.txt").write_text("Beta plain text.")
(docs / "skip.py").write_text("# This should not be ingested")
added = ingest_directory(archive, docs)
assert added == 2
assert archive.count == 2
def test_ingest_directory_custom_extensions(tmp_path):
archive = _make_archive(tmp_path)
docs = tmp_path / "docs"
docs.mkdir()
(docs / "a.md").write_text("# Alpha")
(docs / "b.py").write_text("No heading — uses stem.")
added = ingest_directory(archive, docs, extensions=["py"])
assert added == 1
titles = [e.title for e in archive._entries.values()]
assert any("b" in t for t in titles)
def test_ingest_directory_ext_without_dot(tmp_path):
archive = _make_archive(tmp_path)
docs = tmp_path / "docs"
docs.mkdir()
(docs / "notes.md").write_text("# Notes\n\nContent.")
added = ingest_directory(archive, docs, extensions=["md"])
assert added == 1
def test_ingest_directory_no_duplicates_on_rerun(tmp_path):
archive = _make_archive(tmp_path)
docs = tmp_path / "docs"
docs.mkdir()
(docs / "file.md").write_text("# Stable\n\nSame content.")
ingest_directory(archive, docs)
assert archive.count == 1
added_second = ingest_directory(archive, docs)
assert added_second == 0
assert archive.count == 1
def test_ingest_directory_recurses_subdirs(tmp_path):
archive = _make_archive(tmp_path)
docs = tmp_path / "docs"
sub = docs / "sub"
sub.mkdir(parents=True)
(docs / "top.md").write_text("# Top level")
(sub / "nested.md").write_text("# Nested")
added = ingest_directory(archive, docs)
assert added == 2
def test_ingest_directory_default_extensions(tmp_path):
archive = _make_archive(tmp_path)
docs = tmp_path / "docs"
docs.mkdir()
(docs / "a.md").write_text("markdown")
(docs / "b.txt").write_text("text")
(docs / "c.json").write_text('{"key": "value"}')
(docs / "d.yaml").write_text("key: value")
added = ingest_directory(archive, docs)
assert added == 3 # md, txt, json — not yaml