mirror of
https://github.com/unclebob/mutator.git
synced 2026-11-06 18:23:50 +00:00
Robert C. Martin
b35a9caf6f
Mutator's interpreter does not have the project installed, so the baseline failed before any mutant ran.
126 lines
4.5 KiB
Python
126 lines
4.5 KiB
Python
import sys
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from mutator.runner import CommandRunner, _clojure_command, _python_command, nearest
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def test_nearest_walks_up_to_the_marker(tmp_path):
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root = tmp_path / "proj"
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nested = root / "src" / "demo"
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nested.mkdir(parents=True)
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(root / "pyproject.toml").write_text("", encoding="utf-8")
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source = nested / "app.py"
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source.write_text("x = 1\n", encoding="utf-8")
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assert nearest(source, "pyproject.toml", root) == root
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assert nearest(nested, "pyproject.toml", root) == root
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assert nearest(source, "missing.toml", root) is None
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def test_clojure_commands(tmp_path):
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bb = tmp_path / "bb-spec"
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bb.mkdir()
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(bb / "bb.edn").write_text('{:tasks {spec "spec"}}', encoding="utf-8")
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assert _clojure_command(bb) == "bb spec --tag ~no-mutate"
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bb_test = tmp_path / "bb-test"
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bb_test.mkdir()
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(bb_test / "bb.edn").write_text("{:tasks {test (clojure \"-M:test\")}}", encoding="utf-8")
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assert _clojure_command(bb_test) == "bb test"
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spec = tmp_path / "spec"
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spec.mkdir()
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(spec / "deps.edn").write_text(
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"{:aliases {:spec {:extra-deps {speclj/speclj {}}}}}", encoding="utf-8"
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)
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assert _clojure_command(spec) == "clj -M:spec --tag ~no-mutate"
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spec_only = tmp_path / "spec-only"
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spec_only.mkdir()
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(spec_only / "deps.edn").write_text("{:aliases {:spec {}}}", encoding="utf-8")
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assert _clojure_command(spec_only) == "clj -M:spec"
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plain = tmp_path / "plain"
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plain.mkdir()
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(plain / "deps.edn").write_text("{:deps {}}", encoding="utf-8")
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assert _clojure_command(plain) == "clj -M:test"
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def _executable(path):
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path.parent.mkdir(parents=True, exist_ok=True)
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path.write_text("#!/bin/sh\n", encoding="utf-8")
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path.chmod(0o755)
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def test_python_command_uses_an_absolute_project_interpreter(tmp_path):
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project = tmp_path / "proj"
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dot = project / ".venv" / "bin" / "python"
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_executable(dot)
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(project / "pytest.ini").write_text("[pytest]\n", encoding="utf-8")
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assert _python_command(project) == f"{dot.absolute()} -m pytest"
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other = tmp_path / "other"
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plain = other / "venv" / "bin" / "python"
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_executable(plain)
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assert _python_command(other) == f"{plain.absolute()} -m unittest discover"
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_executable(other / ".venv" / "bin" / "python")
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assert _python_command(other) == f"{(other / '.venv' / 'bin' / 'python').absolute()} -m unittest discover"
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def test_python_command_keeps_the_virtualenv_symlink(tmp_path):
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project = tmp_path / "proj"
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target = project / "real-python"
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_executable(target)
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link = project / ".venv" / "bin" / "python"
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link.parent.mkdir(parents=True)
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link.symlink_to(target)
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(project / "pytest.ini").write_text("[pytest]\n", encoding="utf-8")
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assert _python_command(project) == f"{link.absolute()} -m pytest"
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def test_python_command_falls_back_when_the_virtualenv_cannot_run(tmp_path):
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project = tmp_path / "proj"
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binary = project / ".venv" / "bin" / "python"
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binary.parent.mkdir(parents=True)
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binary.write_text("", encoding="utf-8")
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assert _python_command(project) == f"{sys.executable} -m unittest discover"
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missing = tmp_path / "missing"
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missing.mkdir()
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assert _python_command(missing) == f"{sys.executable} -m unittest discover"
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def test_python_commands(tmp_path):
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pytest_dir = tmp_path / "py"
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pytest_dir.mkdir()
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(pytest_dir / "pytest.ini").write_text("[pytest]\n", encoding="utf-8")
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assert _python_command(pytest_dir).endswith("-m pytest")
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unit = tmp_path / "unit"
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unit.mkdir()
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assert _python_command(unit).endswith("-m unittest discover")
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cfg = tmp_path / "cfg"
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cfg.mkdir()
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(cfg / "setup.cfg").write_text("[tool:pytest]\n", encoding="utf-8")
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assert _python_command(cfg).endswith("-m pytest")
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project = tmp_path / "proj"
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project.mkdir()
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(project / "pyproject.toml").write_text("[project]\ndependencies=['pytest']\n", encoding="utf-8")
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assert _python_command(project).endswith("-m pytest")
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conf = tmp_path / "conf"
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conf.mkdir()
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(conf / "conftest.py").write_text("", encoding="utf-8")
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assert _python_command(conf).endswith("-m pytest")
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def test_a_worker_overlay_is_imported_ahead_of_the_environment(tmp_path):
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worker = tmp_path / "target" / "mutation-workers" / "run-1" / "worker-0"
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(worker / "src").mkdir(parents=True)
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(worker / "src" / "demo.py").write_text("VALUE = 'worker'\n", encoding="utf-8")
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command = f"{sys.executable} -c 'import demo; print(demo.VALUE)'"
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result = CommandRunner().run(command, worker, 5)
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assert result.code == 0
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assert result.output.strip() == "worker"
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