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https://github.com/safishamsi/graphify.git
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dr mike
d424a7ccfa
Declare tomli with an environment marker and raise ImportError instead of returning None, so missing parsers no longer look like empty manifests.
Fixes #3283
(cherry picked from commit c06ba2731c)
65 lines
2.0 KiB
Python
65 lines
2.0 KiB
Python
"""Regression tests for missing tomli on Python < 3.11 (#3283)."""
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from __future__ import annotations
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import builtins
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import sys
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from pathlib import Path
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import pytest
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from graphify.manifest_ingest import (
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_TOMLI_REQUIRED,
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_load_toml_module,
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_parse_cargo,
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_parse_pyproject,
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extract_package_manifest,
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)
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def test_load_toml_module_raises_when_tomli_missing(monkeypatch):
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real_import = builtins.__import__
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def fake_import(name, *args, **kwargs):
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if name in ("tomllib", "tomli"):
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raise ImportError(f"blocked {name}")
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return real_import(name, *args, **kwargs)
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monkeypatch.setattr(builtins, "__import__", fake_import)
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with pytest.raises(ImportError, match="tomli"):
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_load_toml_module()
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def test_parse_pyproject_surfaces_missing_parser(monkeypatch):
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monkeypatch.setattr(
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"graphify.manifest_ingest._load_toml_module",
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lambda: (_ for _ in ()).throw(ImportError(_TOMLI_REQUIRED)),
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)
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with pytest.raises(ImportError, match="tomli"):
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_parse_pyproject('[project]\nname = "x"\n')
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def test_parse_cargo_surfaces_missing_parser(monkeypatch):
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monkeypatch.setattr(
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"graphify.manifest_ingest._load_toml_module",
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lambda: (_ for _ in ()).throw(ImportError(_TOMLI_REQUIRED)),
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)
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with pytest.raises(ImportError, match="tomli"):
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_parse_cargo('[package]\nname = "x"\nversion = "0.1.0"\n')
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def test_extract_package_manifest_reports_missing_tomli(tmp_path, monkeypatch):
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p = tmp_path / "pyproject.toml"
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p.write_text('[project]\nname = "cool"\nversion = "0.1"\n', encoding="utf-8")
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monkeypatch.setattr(
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"graphify.manifest_ingest._load_toml_module",
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lambda: (_ for _ in ()).throw(ImportError(_TOMLI_REQUIRED)),
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)
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result = extract_package_manifest(p)
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assert result["nodes"] == []
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assert "tomli" in result.get("error", "").lower()
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@pytest.mark.skipif(sys.version_info >= (3, 11), reason="stdlib tomllib present")
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def test_tomli_is_importable_on_py310():
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import tomli # noqa: F401
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