66 lines
2.8 KiB
Python
66 lines
2.8 KiB
Python
"""Launch-time dependency selection survives a change after launcher minting."""
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import json
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import os
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from pathlib import Path
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import subprocess
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import sys
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import pytest
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from hermes_cli import _launchers
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from pm.environments import install_state_dir, site_packages
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@pytest.mark.platforms("windows")
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def test_minted_launcher_reads_current_selection_and_editable_members(tmp_path, monkeypatch):
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from pm import environments as runtime_paths
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from hermes_cli import runtime_state
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import hermes_constants
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root = tmp_path / "repo"
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package = root / "hermes_cli"
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package.mkdir(parents=True)
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(package / "__init__.py").write_text("")
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pm_package = root / "pm"
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pm_package.mkdir()
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(pm_package / "__init__.py").write_text("")
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# Real selection code, with a fixture entry point rather than a live CLI.
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(pm_package / "environments.py").write_bytes(Path(runtime_paths.__file__).read_bytes())
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(pm_package / "filesystem.py").write_bytes((Path(runtime_paths.__file__).parent / "filesystem.py").read_bytes())
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(package / "runtime_state.py").write_bytes(Path(runtime_state.__file__).read_bytes())
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(root / "hermes_constants.py").write_bytes(Path(hermes_constants.__file__).read_bytes())
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(root / "hermes_bootstrap.py").write_text(
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"from pathlib import Path\nfrom pm.environments import activate_dependencies\n"
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"activate_dependencies(Path(__file__).resolve().parent)\n"
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)
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(package / "main.py").write_text(
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"import selection_probe, editable_probe\n"
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"def main():\n print(selection_probe.VALUE, editable_probe.VALUE)\n return 0\n"
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)
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base = site_packages(root / "venv")
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base.mkdir(parents=True)
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(base / "selection_probe.py").write_text("VALUE = 'base'\n")
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monkeypatch.setenv("HERMES_HOME", str(tmp_path / "home"))
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state = install_state_dir(root)
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out = tmp_path / "bin"
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out.mkdir()
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launcher = _launchers.mint_launcher("hermes", root, out, Path(sys.executable), base)
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assert launcher is not None
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selected = state / "environments" / "selected" / "venv"
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site = site_packages(selected)
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site.mkdir(parents=True)
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(selected / "pyvenv.cfg").write_text("home = fixture\n")
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(site / "selection_probe.py").write_text("VALUE = 'selected'\n")
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editable = tmp_path / "editable"
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editable.mkdir()
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(editable / "editable_probe.py").write_text("VALUE = 'editable'\n")
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(site / "member.pth").write_text(str(editable) + "\n")
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(state / "facts.json").write_text(json.dumps({"packages": {"venv": {"environment": str(selected)}}}))
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env = dict(os.environ)
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env.pop("PYTHONPATH", None)
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env.pop("PYTHONHOME", None)
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result = subprocess.run([str(launcher)], cwd=tmp_path, env=env, capture_output=True, text=True, timeout=30, check=False)
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assert result.returncode == 0, result.stdout + result.stderr
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assert result.stdout.strip() == "selected editable"
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