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Safi
127 lines
4.1 KiB
Python
127 lines
4.1 KiB
Python
"""Tests for graphify/cache.py."""
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import pytest
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from pathlib import Path
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from graphify.cache import file_hash, cache_dir, load_cached, save_cached, cached_files, clear_cache, _body_content
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@pytest.fixture
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def tmp_file(tmp_path):
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f = tmp_path / "sample.txt"
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f.write_text("hello world")
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return f
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@pytest.fixture
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def cache_root(tmp_path):
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return tmp_path
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def test_file_hash_consistent(tmp_file):
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"""Same file gives same hash on repeated calls."""
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h1 = file_hash(tmp_file)
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h2 = file_hash(tmp_file)
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assert h1 == h2
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assert isinstance(h1, str)
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assert len(h1) == 64 # SHA256 hex digest length
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def test_file_hash_changes(tmp_path):
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"""Different file contents give different hashes."""
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f1 = tmp_path / "a.txt"
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f2 = tmp_path / "b.txt"
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f1.write_text("content one")
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f2.write_text("content two")
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assert file_hash(f1) != file_hash(f2)
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def test_cache_roundtrip(tmp_file, cache_root):
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"""Save then load returns the same result dict."""
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result = {"nodes": [{"id": "n1", "label": "Node1"}], "edges": []}
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save_cached(tmp_file, result, root=cache_root)
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loaded = load_cached(tmp_file, root=cache_root)
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assert loaded == result
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def test_cache_miss_on_change(tmp_file, cache_root):
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"""After file content changes, load_cached returns None."""
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result = {"nodes": [], "edges": [{"source": "a", "target": "b"}]}
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save_cached(tmp_file, result, root=cache_root)
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# Modify the file
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tmp_file.write_text("completely different content")
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assert load_cached(tmp_file, root=cache_root) is None
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def test_cached_files(tmp_path, cache_root):
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"""cached_files returns the set of cached hashes."""
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f1 = tmp_path / "file1.py"
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f2 = tmp_path / "file2.py"
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f1.write_text("alpha")
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f2.write_text("beta")
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save_cached(f1, {"nodes": [], "edges": []}, root=cache_root)
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save_cached(f2, {"nodes": [], "edges": []}, root=cache_root)
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hashes = cached_files(cache_root)
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assert file_hash(f1) in hashes
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assert file_hash(f2) in hashes
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def test_clear_cache(tmp_file, cache_root):
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"""clear_cache removes all .json files from graphify-out/cache/."""
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save_cached(tmp_file, {"nodes": [], "edges": []}, root=cache_root)
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assert len(list((cache_root / "graphify-out" / "cache").glob("*.json"))) > 0
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clear_cache(cache_root)
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assert len(list((cache_root / "graphify-out" / "cache").glob("*.json"))) == 0
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def test_md_frontmatter_only_change_same_hash(tmp_path):
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"""Changing only frontmatter fields in a .md file does not change the hash."""
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f = tmp_path / "doc.md"
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f.write_text("---\nreviewed: 2026-01-01\n---\n\n# Title\n\nBody text.")
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h1 = file_hash(f)
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f.write_text("---\nreviewed: 2026-04-09\n---\n\n# Title\n\nBody text.")
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h2 = file_hash(f)
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assert h1 == h2
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def test_md_body_change_different_hash(tmp_path):
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"""Changing the body of a .md file produces a different hash."""
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f = tmp_path / "doc.md"
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f.write_text("---\nreviewed: 2026-01-01\n---\n\n# Title\n\nOriginal body.")
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h1 = file_hash(f)
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f.write_text("---\nreviewed: 2026-01-01\n---\n\n# Title\n\nChanged body.")
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h2 = file_hash(f)
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assert h1 != h2
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def test_md_no_frontmatter_hashed_normally(tmp_path):
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"""A .md file with no frontmatter is hashed by its full content."""
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f = tmp_path / "doc.md"
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f.write_text("# Just a heading\n\nNo frontmatter here.")
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h1 = file_hash(f)
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f.write_text("# Just a heading\n\nDifferent content.")
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h2 = file_hash(f)
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assert h1 != h2
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def test_non_md_file_hashed_fully(tmp_path):
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"""Non-.md files are still hashed by their full content."""
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f = tmp_path / "script.py"
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f.write_text("# comment\nx = 1")
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h1 = file_hash(f)
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f.write_text("# changed comment\nx = 1")
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h2 = file_hash(f)
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assert h1 != h2
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def test_body_content_strips_frontmatter():
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"""_body_content correctly strips YAML frontmatter."""
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content = b"---\ntitle: Test\n---\n\nActual body."
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assert _body_content(content) == b"\n\nActual body."
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def test_body_content_no_frontmatter():
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"""_body_content returns content unchanged when no frontmatter present."""
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content = b"No frontmatter here."
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assert _body_content(content) == content
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