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pkgmgr/tests/integration/test_recursive_capabilities.py
Kevin Veen-Birkenbach a4efb847ba Cleaned Up tests
2025-12-09 14:33:32 +01:00

417 lines
16 KiB
Python

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Integration tests for the recursive / layered capability handling in pkgmgr.
We focus on the interaction between:
- MakefileInstaller (layer: "makefile")
- PythonInstaller (layer: "python")
- NixFlakeInstaller (layer: "nix")
- ArchPkgbuildInstaller (layer: "os-packages")
The core idea:
- Each installer declares logical capabilities for its layer via
discover_capabilities() and the global CAPABILITY_MATCHERS.
- install_repos() tracks which capabilities have already been provided
by earlier installers (in INSTALLERS order).
- If an installer only provides capabilities that are already covered
by previous installers, it is skipped.
These tests use *real* capability detection (based on repo files like
flake.nix, pyproject.toml, Makefile, PKGBUILD), but patch the installers'
run() methods so that no real external commands are executed.
Scenarios:
1. Only Makefile with install target
→ MakefileInstaller runs, all good.
2. Python + Makefile (no "make install" in pyproject.toml)
→ PythonInstaller provides only python-runtime
→ MakefileInstaller provides make-install
→ Both run, since their capabilities are disjoint.
3. Python + Makefile (pyproject.toml mentions "make install")
→ PythonInstaller provides {python-runtime, make-install}
→ MakefileInstaller provides {make-install}
→ MakefileInstaller is skipped (capabilities already covered).
4. Nix + Python + Makefile
- flake.nix hints:
* buildPythonApplication (python-runtime)
* make install (make-install)
→ NixFlakeInstaller provides {python-runtime, make-install, nix-flake}
→ PythonInstaller and MakefileInstaller are skipped.
5. OS packages + Nix + Python + Makefile
- PKGBUILD contains:
* "pip install ." (python-runtime via os-packages)
* "make install" (make-install via os-packages)
* "nix profile" (nix-flake via os-packages)
→ ArchPkgbuildInstaller provides all capabilities
→ All lower layers are skipped.
"""
import os
import shutil
import tempfile
import unittest
from unittest.mock import patch
import pkgmgr.actions.repository.install as install_mod
from pkgmgr.actions.repository.install import install_repos
from pkgmgr.actions.repository.install.installers.nix_flake import NixFlakeInstaller
from pkgmgr.actions.repository.install.installers.python import PythonInstaller
from pkgmgr.actions.repository.install.installers.makefile import MakefileInstaller
from pkgmgr.actions.repository.install.installers.os_packages.arch_pkgbuild import ArchPkgbuildInstaller
class TestRecursiveCapabilitiesIntegration(unittest.TestCase):
def setUp(self) -> None:
# Temporary base directory for this test class
self.tmp_root = tempfile.mkdtemp(prefix="pkgmgr-integration-")
self.bin_dir = os.path.join(self.tmp_root, "bin")
os.makedirs(self.bin_dir, exist_ok=True)
def tearDown(self) -> None:
shutil.rmtree(self.tmp_root)
# ------------------------------------------------------------------
# Helper: create a new repo directory for a scenario
# ------------------------------------------------------------------
def _new_repo(self) -> str:
repo_dir = tempfile.mkdtemp(prefix="repo-", dir=self.tmp_root)
return repo_dir
# ------------------------------------------------------------------
# Helper: run install_repos() with a custom installer list
# and record which installers actually ran.
# ------------------------------------------------------------------
def _run_with_installers(self, repo_dir: str, installers, selected_repos=None):
"""
Run install_repos() with a given INSTALLERS list and a single
dummy repo; return the list of installer labels that actually ran.
The installers' supports() are forced to True so that only the
capability-shadowing logic decides whether they are skipped.
The installers' run() methods are patched to avoid real commands.
NOTE:
We patch resolve_command_for_repo() to always return a dummy
command path so that command resolution does not interfere with
capability-layering tests.
"""
if selected_repos is None:
repo = {}
selected_repos = [repo]
all_repos = [repo]
else:
all_repos = selected_repos
called_installers: list[str] = []
# Prepare patched instances with recording run() and always-supports.
patched_installers = []
for label, inst in installers:
def always_supports(self, ctx):
return True
def make_run(label_name):
def _run(self, ctx):
called_installers.append(label_name)
return _run
inst.supports = always_supports.__get__(inst, inst.__class__)
inst.run = make_run(label).__get__(inst, inst.__class__)
patched_installers.append(inst)
with patch.object(install_mod, "INSTALLERS", patched_installers), \
patch.object(install_mod, "get_repo_identifier", return_value="dummy-repo"), \
patch.object(install_mod, "get_repo_dir", return_value=repo_dir), \
patch.object(install_mod, "verify_repository", return_value=(True, [], None, None)), \
patch.object(install_mod, "create_ink"), \
patch.object(install_mod, "clone_repos"), \
patch.object(install_mod, "resolve_command_for_repo", return_value="/bin/dummy"):
install_repos(
selected_repos=selected_repos,
repositories_base_dir=self.tmp_root,
bin_dir=self.bin_dir,
all_repos=all_repos,
no_verification=True,
preview=False,
quiet=False,
clone_mode="shallow",
update_dependencies=False,
)
return called_installers
# ------------------------------------------------------------------
# Scenario 1: Only Makefile with install target
# ------------------------------------------------------------------
def test_only_makefile_installer_runs(self) -> None:
repo_dir = self._new_repo()
# Makefile: detect a real 'install' target for makefile layer.
with open(os.path.join(repo_dir, "Makefile"), "w", encoding="utf-8") as f:
f.write("install:\n\t@echo 'installing from Makefile'\n")
mk_inst = MakefileInstaller()
installers = [("makefile", mk_inst)]
called = self._run_with_installers(repo_dir, installers)
self.assertEqual(
called,
["makefile"],
"With only a Makefile, the MakefileInstaller should run exactly once.",
)
# ------------------------------------------------------------------
# Scenario 2: Python + Makefile, but pyproject.toml does NOT mention 'make install'
# → capabilities are disjoint, both installers should run.
# ------------------------------------------------------------------
def test_python_and_makefile_both_run_when_caps_disjoint(self) -> None:
repo_dir = self._new_repo()
# pyproject.toml: basic Python project, no 'make install' string.
with open(os.path.join(repo_dir, "pyproject.toml"), "w", encoding="utf-8") as f:
f.write(
"[project]\n"
"name = 'dummy'\n"
)
# Makefile: install target for makefile layer.
with open(os.path.join(repo_dir, "Makefile"), "w", encoding="utf-8") as f:
f.write("install:\n\t@echo 'installing from Makefile'\n")
py_inst = PythonInstaller()
mk_inst = MakefileInstaller()
# Order: Python first, then Makefile
installers = [
("python", py_inst),
("makefile", mk_inst),
]
called = self._run_with_installers(repo_dir, installers)
# Both should have run because:
# - Python provides {python-runtime}
# - Makefile provides {make-install}
self.assertEqual(
called,
["python", "makefile"],
"PythonInstaller and MakefileInstaller should both run when their capabilities are disjoint.",
)
# ------------------------------------------------------------------
# Scenario 3: Python + Makefile, pyproject.toml mentions 'make install'
# → PythonInstaller provides {python-runtime, make-install}
# MakefileInstaller only {make-install}
# → MakefileInstaller must be skipped.
# ------------------------------------------------------------------
def test_python_shadows_makefile_when_pyproject_mentions_make_install(self) -> None:
repo_dir = self._new_repo()
# pyproject.toml: Python project with 'make install' hint.
with open(os.path.join(repo_dir, "pyproject.toml"), "w", encoding="utf-8") as f:
f.write(
"[project]\n"
"name = 'dummy'\n"
"\n"
"# Hint for MakeInstallCapability on layer 'python'\n"
"make install\n"
)
# Makefile: install target, but should be shadowed by Python.
with open(os.path.join(repo_dir, "Makefile"), "w", encoding="utf-8") as f:
f.write("install:\n\t@echo 'installing from Makefile'\n")
py_inst = PythonInstaller()
mk_inst = MakefileInstaller()
installers = [
("python", py_inst),
("makefile", mk_inst),
]
called = self._run_with_installers(repo_dir, installers)
# Python should run, Makefile should be skipped because its only
# capability (make-install) is already provided by Python.
self.assertIn("python", called, "PythonInstaller should have run.")
self.assertNotIn(
"makefile",
called,
"MakefileInstaller should be skipped because its 'make-install' capability "
"is already provided by Python.",
)
# ------------------------------------------------------------------
# Scenario 4: Nix + Python + Makefile
# flake.nix provides python-runtime + make-install + nix-flake
# → Nix shadows both Python and Makefile.
# ------------------------------------------------------------------
def test_nix_shadows_python_and_makefile(self) -> None:
repo_dir = self._new_repo()
# pyproject.toml: generic Python project
with open(os.path.join(repo_dir, "pyproject.toml"), "w", encoding="utf-8") as f:
f.write(
"[project]\n"
"name = 'dummy'\n"
)
# Makefile: install target
with open(os.path.join(repo_dir, "Makefile"), "w", encoding="utf-8") as f:
f.write("install:\n\t@echo 'installing from Makefile'\n")
# flake.nix: hints for both python-runtime and make-install on layer 'nix'
with open(os.path.join(repo_dir, "flake.nix"), "w", encoding="utf-8") as f:
f.write(
"{\n"
' description = "integration test flake";\n'
"}\n"
"\n"
"# Hint for PythonRuntimeCapability on layer 'nix'\n"
"buildPythonApplication something\n"
"\n"
"# Hint for MakeInstallCapability on layer 'nix'\n"
"make install\n"
)
nix_inst = NixFlakeInstaller()
py_inst = PythonInstaller()
mk_inst = MakefileInstaller()
installers = [
("nix", nix_inst),
("python", py_inst),
("makefile", mk_inst),
]
called = self._run_with_installers(repo_dir, installers)
# Nix must run, Python and Makefile must be skipped:
# - Nix provides {python-runtime, make-install, nix-flake}
# - Python provides {python-runtime}
# - Makefile provides {make-install}
self.assertIn("nix", called, "NixFlakeInstaller should have run.")
self.assertNotIn(
"python",
called,
"PythonInstaller should be skipped because its python-runtime capability "
"is already provided by Nix.",
)
self.assertNotIn(
"makefile",
called,
"MakefileInstaller should be skipped because its make-install capability "
"is already provided by Nix.",
)
# ------------------------------------------------------------------
# Scenario 5: OS packages + Nix + Python + Makefile
# PKGBUILD provides python-runtime + make-install + nix-flake
# → ArchPkgbuildInstaller shadows everything below.
# ------------------------------------------------------------------
def test_os_packages_shadow_nix_python_and_makefile(self) -> None:
repo_dir = self._new_repo()
# pyproject.toml: enough to signal a Python project
with open(os.path.join(repo_dir, "pyproject.toml"), "w", encoding="utf-8") as f:
f.write(
"[project]\n"
"name = 'dummy'\n"
)
# Makefile: install target
with open(os.path.join(repo_dir, "Makefile"), "w", encoding="utf-8") as f:
f.write("install:\n\t@echo 'installing from Makefile'\n")
# flake.nix: as before
with open(os.path.join(repo_dir, "flake.nix"), "w", encoding="utf-8") as f:
f.write(
"{\n"
' description = "integration test flake";\n'
"}\n"
"\n"
"buildPythonApplication something\n"
"make install\n"
)
# PKGBUILD: contains patterns for all three capabilities on layer 'os-packages':
# - "pip install ." → python-runtime
# - "make install" → make-install
# - "nix profile" → nix-flake
with open(os.path.join(repo_dir, "PKGBUILD"), "w", encoding="utf-8") as f:
f.write(
"pkgname=dummy\n"
"pkgver=0.1\n"
"pkgrel=1\n"
"pkgdesc='dummy pkg for integration test'\n"
"arch=('any')\n"
"source=()\n"
"sha256sums=()\n"
"\n"
"build() {\n"
" echo 'build phase'\n"
"}\n"
"\n"
"package() {\n"
" echo 'install via pip and make and nix'\n"
" pip install .\n"
" make install\n"
" nix profile list || true\n"
"}\n"
)
os_inst = ArchPkgbuildInstaller()
nix_inst = NixFlakeInstaller()
py_inst = PythonInstaller()
mk_inst = MakefileInstaller()
installers = [
("os-packages", os_inst),
("nix", nix_inst),
("python", py_inst),
("makefile", mk_inst),
]
called = self._run_with_installers(repo_dir, installers)
# ArchPkgbuildInstaller must run, and everything below must be skipped:
# - os-packages provides {python-runtime, make-install, nix-flake}
# - nix provides {python-runtime, make-install, nix-flake}
# - python provides {python-runtime}
# - makefile provides {make-install}
self.assertIn("os-packages", called, "ArchPkgbuildInstaller should have run.")
self.assertNotIn(
"nix",
called,
"NixFlakeInstaller should be skipped because all its capabilities "
"are already provided by os-packages.",
)
self.assertNotIn(
"python",
called,
"PythonInstaller should be skipped because python-runtime is already "
"provided by os-packages.",
)
self.assertNotIn(
"makefile",
called,
"MakefileInstaller should be skipped because make-install is already "
"provided by os-packages.",
)
if __name__ == "__main__":
unittest.main()