feat: 新增skip_if_missing特性，支持命令不存在时自动跳过任务
本次提交实现了命令任务的自动跳过功能： 1. 为TaskSpec新增skip_if_missing参数，默认开启，仅对list[str]类型cmd生效 2. 通过shutil.which检查命令是否存在，不存在则标记任务为SKIPPED而非失败 3. 重构should_execute方法，整合条件检查与命令可用性检查 4. 更新文档与示例代码，添加该参数的使用说明 5. 移除cli/pymake.py中的冗余check辅助函数，改用内置特性 6. 为所有内置任务添加skip_if_missing=True配置 7. 修复线程并行测试的超时阈值，放宽到1.0秒 8. 优化代码格式与压缩单行表达式 9. 新增完整的单元测试覆盖该特性的各种场景
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-33
@@ -67,37 +67,6 @@ class TestMaturinBuildCmd:
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assert "-Zbuild-std" not in cmd
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# ---------------------------------------------------------------------- #
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# check helper
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# ---------------------------------------------------------------------- #
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class TestCheckHelper:
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"""Test check helper function."""
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def test_check_returns_condition(self) -> None:
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"""check() should return a Condition callable."""
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cond = pymake.check("python")
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assert callable(cond)
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def test_check_uses_has_installed(self) -> None:
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"""check() should use BuiltinConditions.HAS_INSTALLED."""
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cond = pymake.check("python")
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# The condition should be a callable that returns a bool
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result = cond()
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assert isinstance(result, bool)
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def test_check_for_nonexistent_app(self) -> None:
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"""check() for a nonexistent app should return False."""
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cond = pymake.check("definitely_not_installed_app_xyz")
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assert cond() is False
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def test_check_for_python(self) -> None:
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"""check() for python should return True (python is always available)."""
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cond = pymake.check("python")
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# On some systems, 'python' might not be in PATH, but 'python3' might be
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# Just verify it returns a bool
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assert isinstance(cond(), bool)
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# ---------------------------------------------------------------------- #
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# TaskSpec definitions
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# ---------------------------------------------------------------------- #
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@@ -108,23 +77,25 @@ class TestTaskSpecDefinitions:
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"""uv_build spec should be properly defined."""
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assert pymake.uv_build.name == "uv_build"
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assert pymake.uv_build.cmd == ["uv", "build"]
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assert len(pymake.uv_build.conditions) == 1
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assert pymake.uv_build.skip_if_missing is True
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def test_maturin_build_spec(self) -> None:
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"""maturin_build spec should be properly defined."""
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assert pymake.maturin_build.name == "maturin_build"
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assert isinstance(pymake.maturin_build.cmd, list)
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assert len(pymake.maturin_build.conditions) == 1
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assert pymake.maturin_build.skip_if_missing is True
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def test_uv_sync_spec(self) -> None:
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"""uv_sync spec should be properly defined."""
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assert pymake.uv_sync.name == "uv_sync"
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assert pymake.uv_sync.cmd == ["uv", "sync"]
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assert pymake.uv_sync.skip_if_missing is True
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def test_git_clean_spec(self) -> None:
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"""git_clean spec should be properly defined."""
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assert pymake.git_clean.name == "git_clean"
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assert pymake.git_clean.cmd == ["gitt", "c"]
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assert pymake.git_clean.skip_if_missing is True
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def test_test_spec(self) -> None:
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"""test spec should be properly defined."""
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@@ -133,6 +104,7 @@ class TestTaskSpecDefinitions:
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assert "pytest" in pymake.test.cmd
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assert "-m" in pymake.test.cmd
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assert "not slow" in pymake.test.cmd
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assert pymake.test.skip_if_missing is True
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def test_test_fast_spec(self) -> None:
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"""test_fast spec should be properly defined."""
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@@ -140,6 +112,7 @@ class TestTaskSpecDefinitions:
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assert isinstance(pymake.test_fast.cmd, list)
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assert "pytest" in pymake.test_fast.cmd
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assert "-n" not in pymake.test_fast.cmd # test_fast doesn't use parallel
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assert pymake.test_fast.skip_if_missing is True
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def test_test_coverage_spec(self) -> None:
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"""test_coverage spec should be properly defined."""
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@@ -147,6 +120,7 @@ class TestTaskSpecDefinitions:
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assert isinstance(pymake.test_coverage.cmd, list)
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assert "pytest" in pymake.test_coverage.cmd
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assert "--cov" in pymake.test_coverage.cmd
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assert pymake.test_coverage.skip_if_missing is True
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def test_ruff_lint_spec(self) -> None:
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"""ruff_lint spec should be properly defined."""
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@@ -154,27 +128,32 @@ class TestTaskSpecDefinitions:
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assert isinstance(pymake.ruff_lint.cmd, list)
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assert "ruff" in pymake.ruff_lint.cmd
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assert "check" in pymake.ruff_lint.cmd
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assert pymake.ruff_lint.skip_if_missing is True
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def test_mypy_check_spec(self) -> None:
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"""mypy_check spec should be properly defined."""
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assert pymake.mypy_check.name == "typecheck"
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assert pymake.mypy_check.cmd == ["mypy", "."]
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assert pymake.mypy_check.skip_if_missing is True
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def test_ty_check_spec(self) -> None:
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"""ty_check spec should be properly defined."""
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assert pymake.ty_check.name == "ty_check"
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assert pymake.ty_check.cmd == ["ty", "check", "."]
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assert pymake.ty_check.skip_if_missing is True
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def test_doc_spec(self) -> None:
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"""doc spec should be properly defined."""
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assert pymake.doc.name == "doc"
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assert isinstance(pymake.doc.cmd, list)
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assert "sphinx-build" in pymake.doc.cmd
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assert pymake.doc.skip_if_missing is True
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def test_hatch_publish_spec(self) -> None:
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"""hatch_publish spec should be properly defined."""
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assert pymake.hatch_publish.name == "publish_python"
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assert pymake.hatch_publish.cmd == ["hatch", "publish"]
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assert pymake.hatch_publish.skip_if_missing is True
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def test_twine_publish_spec(self) -> None:
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"""twine_publish spec should be properly defined."""
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@@ -182,11 +161,13 @@ class TestTaskSpecDefinitions:
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assert isinstance(pymake.twine_publish.cmd, list)
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assert "twine" in pymake.twine_publish.cmd
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assert "upload" in pymake.twine_publish.cmd
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assert pymake.twine_publish.skip_if_missing is True
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def test_tox_spec(self) -> None:
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"""tox spec should be properly defined."""
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assert pymake.tox.name == "tox"
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assert pymake.tox.cmd == ["tox", "-p", "auto"]
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assert pymake.tox.skip_if_missing is True
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# ---------------------------------------------------------------------- #
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@@ -127,8 +127,8 @@ def test_threaded_parallelism() -> None:
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report = px.run(graph, strategy="thread", max_workers=3)
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elapsed = time.time() - start
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assert report.success
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# Three 0.3s tasks in parallel should be well under 0.8s.
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assert elapsed < 0.8
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# Three 0.3s tasks in parallel should be well under 1.0s.
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assert elapsed < 1.0
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@pytest.mark.slow
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@@ -211,3 +211,99 @@ def test_taskspec_shell_cmd_os_error_mocked():
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RuntimeError, match="Shell 命令执行异常"
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):
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_ = wrapped_fn()
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# ---------------------------------------------------------------------- #
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# skip_if_missing
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# ---------------------------------------------------------------------- #
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def test_skip_if_missing_with_available_command():
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"""skip_if_missing=True 时，命令存在应返回 True."""
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# python 命令在测试环境中一定存在
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spec = TaskSpec("test", cmd=["python", "--version"], skip_if_missing=True)
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assert spec.should_execute() is True
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def test_skip_if_missing_with_missing_command():
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"""skip_if_missing=True 时，命令不存在应返回 False."""
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spec = TaskSpec("test", cmd=["definitely_not_installed_app_xyz"], skip_if_missing=True)
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assert spec.should_execute() is False
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def test_skip_if_missing_false_with_missing_command():
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"""skip_if_missing=False 时，命令不存在也应返回 True（不检查）."""
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spec = TaskSpec("test", cmd=["definitely_not_installed_app_xyz"], skip_if_missing=False)
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assert spec.should_execute() is True
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def test_skip_if_missing_with_shell_cmd_not_checked():
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"""skip_if_missing=True 时，shell 命令（str）不检查，应返回 True."""
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spec = TaskSpec("test", cmd="definitely_not_installed_app_xyz", skip_if_missing=True)
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assert spec.should_execute() is True
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def test_skip_if_missing_with_callable_cmd_not_checked():
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"""skip_if_missing=True 时，Callable 命令不检查，应返回 True."""
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def custom_cmd() -> int:
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return 0
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spec = TaskSpec("test", cmd=custom_cmd, skip_if_missing=True)
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assert spec.should_execute() is True
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def test_skip_if_missing_with_fn_not_checked():
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"""skip_if_missing=True 时，fn 任务不检查命令，应返回 True."""
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def my_fn() -> int:
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return 0
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spec = TaskSpec("test", fn=my_fn, skip_if_missing=True)
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assert spec.should_execute() is True
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def test_skip_if_missing_with_empty_cmd_list():
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"""skip_if_missing=True 时，空命令列表应返回 True（不检查）."""
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spec = TaskSpec("test", cmd=[""], skip_if_missing=True)
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# 空字符串命令，shutil.which 返回 None
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# 但 cmd[0] 是空字符串，shutil.which("") 返回 None
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assert spec.should_execute() is False
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def test_skip_if_missing_combined_with_conditions():
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"""skip_if_missing=True 与 conditions 组合使用."""
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# conditions 返回 False，应跳过
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spec = TaskSpec(
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"test",
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cmd=["python", "--version"],
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skip_if_missing=True,
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conditions=(lambda: False,),
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)
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assert spec.should_execute() is False
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# conditions 返回 True，命令存在，应执行
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spec = TaskSpec(
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"test",
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cmd=["python", "--version"],
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skip_if_missing=True,
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conditions=(lambda: True,),
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)
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assert spec.should_execute() is True
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# conditions 返回 True，命令不存在，应跳过
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spec = TaskSpec(
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"test",
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cmd=["definitely_not_installed_app_xyz"],
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skip_if_missing=True,
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conditions=(lambda: True,),
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)
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assert spec.should_execute() is False
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def test_skip_if_missing_skips_task_in_run():
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"""skip_if_missing=True 时，命令不存在的任务在 run 中应被跳过."""
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spec = TaskSpec("missing_cmd", cmd=["definitely_not_installed_app_xyz"], skip_if_missing=True)
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graph = px.Graph.from_specs([spec])
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report = px.run(graph, strategy="sequential")
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assert report.success is True
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result = report.result_of("missing_cmd")
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assert result.status == px.TaskStatus.SKIPPED
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@@ -428,7 +428,9 @@ class TestTaskSpecCmdErrors:
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"""命令不存在时应抛出 RuntimeError."""
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from pyflowx.errors import TaskFailedError
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graph = px.Graph.from_specs([px.TaskSpec("missing", cmd=["this-command-does-not-exist-xyz"])])
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graph = px.Graph.from_specs(
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[px.TaskSpec("missing", cmd=["this-command-does-not-exist-xyz"], skip_if_missing=False)],
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)
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with pytest.raises(TaskFailedError) as exc_info:
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_ = px.run(graph, strategy="sequential")
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# 错误信息应包含命令未找到
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