feat(cli): add pxp performance profiler command
1. 新增pxp CLI工具用于分析PyFlowX脚本生成性能报告 2. 新增ProfileReport.to_html方法生成自包含HTML报告 3. 新增完整的profiler功能测试用例 4. 更新pyproject.toml添加pxp入口点 5. 版本升级至0.2.12
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"""pxp 性能分析器测试.
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覆盖策略：
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* HTML 渲染：to_html() 输出结构正确，含关键章节。
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* pxp CLI：参数解析、脚本执行、报告生成、浏览器调用、错误处理。
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* hook 注入：捕获 px.run() 调用，还原原始函数。
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"""
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from __future__ import annotations
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import sys
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from datetime import datetime, timedelta
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from pathlib import Path
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from typing import Any
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import pytest
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import pyflowx as px
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from pyflowx.cli import profiler
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from pyflowx.profiling import ProfileReport
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from pyflowx.report import RunReport
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from pyflowx.task import TaskResult, TaskSpec, TaskStatus
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def _fn() -> int:
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return 1
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def _spec(name: str, deps: tuple[str, ...] = ()) -> TaskSpec[Any]:
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return TaskSpec[Any](name, _fn, depends_on=deps)
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def _result(
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name: str,
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start: datetime,
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duration: float,
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*,
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status: TaskStatus = TaskStatus.SUCCESS,
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attempts: int = 1,
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) -> TaskResult[Any]:
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"""构造带时间戳的 TaskResult."""
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end = start + timedelta(seconds=duration) if duration > 0 else start
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return TaskResult[Any](
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spec=_spec(name),
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status=status,
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value=None,
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attempts=attempts,
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started_at=start if duration > 0 or status != TaskStatus.SKIPPED else None,
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finished_at=end if duration > 0 or status != TaskStatus.SKIPPED else None,
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)
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def _build_simple_profile() -> ProfileReport:
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"""构造一个简单的 ProfileReport 用于测试 HTML 输出."""
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start = datetime(2024, 1, 1, 0, 0, 0)
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report = px.RunReport()
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report.results["a"] = _result("a", start, 1.0)
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report.results["b"] = _result("b", start + timedelta(seconds=1), 2.0)
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graph = px.Graph.from_specs([
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_spec("a"),
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_spec("b", deps=("a",)),
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])
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return ProfileReport.from_report(report, graph)
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class TestToHtml:
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"""测试 ProfileReport.to_html()."""
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def test_to_html_contains_key_sections(self) -> None:
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"""HTML 应包含所有关键章节标题。"""
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profile = _build_simple_profile()
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html = profile.to_html()
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assert "<!DOCTYPE html>" in html
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assert "PyFlowX 性能剖面报告" in html
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assert "图级指标" in html
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assert "关键路径" in html
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assert "任务时间线" in html
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assert "Top 瓶颈任务" in html
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assert "全部任务" in html
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def test_to_html_contains_metrics(self) -> None:
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"""HTML 应包含图级指标数值。"""
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profile = _build_simple_profile()
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html = profile.to_html()
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# 总耗时 3.0s (a=1 + b=2)
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assert "3.000" in html
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# 任务名
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assert "a" in html
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assert "b" in html
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def test_to_html_contains_critical_path(self) -> None:
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"""HTML 应包含关键路径任务链。"""
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profile = _build_simple_profile()
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html = profile.to_html()
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# 关键路径是 a -> b
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assert "<strong>a</strong>" in html
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assert "<strong>b</strong>" in html
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def test_to_html_contains_gantt_bars(self) -> None:
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"""HTML 应包含甘特图条。"""
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profile = _build_simple_profile()
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html = profile.to_html()
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assert "gantt-row" in html
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assert "gantt-bar" in html
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# 每个非 SKIPPED 任务一个条
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assert html.count("gantt-bar") >= 2
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def test_to_html_empty_profile(self) -> None:
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"""空报告的 HTML 应不崩溃。"""
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report = px.RunReport()
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graph = px.Graph()
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profile = ProfileReport.from_report(report, graph)
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html = profile.to_html()
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assert "PyFlowX 性能剖面报告" in html
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assert "(无)" in html
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def test_to_html_with_failed_task(self) -> None:
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"""含 FAILED 任务的 HTML 应包含失败状态徽章。"""
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start = datetime(2024, 1, 1, 0, 0, 0)
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report = px.RunReport()
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report.results["a"] = _result("a", start, 1.0, status=TaskStatus.FAILED)
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graph = px.Graph.from_specs([_spec("a")])
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profile = ProfileReport.from_report(report, graph)
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html = profile.to_html()
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assert "failed" in html
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assert "badge" in html
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def test_to_html_with_skipped_task(self) -> None:
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"""含 SKIPPED 任务的 HTML 不应在甘特图中显示该任务。"""
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start = datetime(2024, 1, 1, 0, 0, 0)
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report = px.RunReport()
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report.results["a"] = _result("a", start, 1.0)
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report.results["b"] = TaskResult[Any](
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spec=_spec("b"),
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status=TaskStatus.SKIPPED,
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reason="skip",
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)
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graph = px.Graph.from_specs([_spec("a"), _spec("b")])
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profile = ProfileReport.from_report(report, graph)
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html = profile.to_html()
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# SKIPPED 任务的徽章应出现
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assert "skipped" in html
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def test_to_html_self_contained(self) -> None:
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"""HTML 应自包含（无外部依赖）。"""
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profile = _build_simple_profile()
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html = profile.to_html()
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# 不引用外部资源
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assert "<link" not in html
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assert "<script src" not in html
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class TestProfilerArgumentParsing:
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"""测试 pxp CLI 参数解析。"""
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def test_default_export_is_html(self) -> None:
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"""默认导出格式为 html。"""
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parser = profiler._build_parser()
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args, remaining = parser.parse_known_args(["pymake.py"])
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assert args.export == "html"
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assert args.no_browser is False
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assert args.output is None
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assert remaining == ["pymake.py"]
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def test_export_text(self) -> None:
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"""-E text 应设置导出格式为 text。"""
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parser = profiler._build_parser()
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args, _ = parser.parse_known_args(["-E", "text", "pymake.py"])
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assert args.export == "text"
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def test_no_browser_flag(self) -> None:
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"""--no-browser 应设置标志。"""
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parser = profiler._build_parser()
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args, _ = parser.parse_known_args(["--no-browser", "pymake.py"])
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assert args.no_browser is True
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def test_output_option(self) -> None:
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"""-o 应设置输出路径。"""
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parser = profiler._build_parser()
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args, _ = parser.parse_known_args(["-o", "report.html", "pymake.py"])
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assert args.output == "report.html"
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def test_script_args_separated(self) -> None:
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"""脚本参数应通过 remaining 分离。"""
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parser = profiler._build_parser()
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_, remaining = parser.parse_known_args(["pymake.py", "t", "--quiet"])
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assert remaining == ["pymake.py", "t", "--quiet"]
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def test_no_args_prints_help(
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self,
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capsys: pytest.CaptureFixture[str],
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monkeypatch: pytest.MonkeyPatch,
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) -> None:
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"""无参数应打印帮助并以退出码 2 退出。"""
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monkeypatch.setattr(sys, "argv", ["pxp"])
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with pytest.raises(SystemExit) as exc_info:
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profiler.main()
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assert exc_info.value.code == 2
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captured = capsys.readouterr()
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assert "usage" in captured.out.lower() or "usage" in captured.err.lower()
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class TestCapturePxRun:
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"""测试 _capture_px_run hook 注入。"""
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def test_capture_captures_run_call(self) -> None:
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"""hook 应捕获 px.run() 调用的 graph 和 report。"""
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captured = profiler._capture_px_run()
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try:
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graph = px.Graph.from_specs([px.TaskSpec("a", lambda: 1)])
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px.run(graph, strategy="sequential")
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assert "graph" in captured
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assert "report" in captured
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assert captured["graph"] is graph
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finally:
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captured["_restore"]()
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def test_capture_restores_original(self) -> None:
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"""还原后 px.run 和 RunReport.__init__ 应恢复为原函数。"""
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original_run = px.run
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original_init = RunReport.__init__
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captured = profiler._capture_px_run()
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# 注入期间 px.run 和 RunReport.__init__ 已被替换
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assert px.run is not original_run
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assert RunReport.__init__ is not original_init
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captured["_restore"]()
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# 还原后恢复
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assert px.run is original_run
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assert RunReport.__init__ is original_init
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def test_capture_via_runner_run(self) -> None:
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"""hook 应捕获通过 CliRunner 执行的 run() 调用。"""
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from pyflowx import runner as runner_mod
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captured = profiler._capture_px_run()
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try:
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# 验证 runner.run 也被 patch（指向 patched_run）
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assert runner_mod.run is px.executors.run
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graph = px.Graph.from_specs([px.TaskSpec("a", lambda: 1)])
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runner_mod.run(graph, strategy="sequential")
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assert "report" in captured
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finally:
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captured["_restore"]()
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def test_capture_captures_report_on_failure(self) -> None:
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"""run() 抛出 TaskFailedError 时仍应捕获 report 实例。"""
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from pyflowx.executors import TaskFailedError
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def failing() -> None:
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raise RuntimeError("boom")
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graph = px.Graph.from_specs([px.TaskSpec("a", failing)])
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captured = profiler._capture_px_run()
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try:
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with pytest.raises(TaskFailedError):
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px.run(graph, strategy="sequential")
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# 即使 run() 抛异常，report 也应被捕获（含已执行任务的结果）
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assert "report" in captured
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assert "graph" in captured
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assert captured["graph"] is graph
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finally:
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captured["_restore"]()
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class TestRunTargetScript:
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"""测试 _run_target_script。"""
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def test_run_simple_script(self, tmp_path: Path) -> None:
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"""应能执行简单脚本并返回模块字典。"""
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script = tmp_path / "simple.py"
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script.write_text("x = 42\n", encoding="utf-8")
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result = profiler._run_target_script(script, [])
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assert result["x"] == 42
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def test_run_script_with_sys_exit(self, tmp_path: Path) -> None:
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"""脚本调用 sys.exit 应抛 SystemExit。"""
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script = tmp_path / "exit.py"
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script.write_text("import sys; sys.exit(0)\n", encoding="utf-8")
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with pytest.raises(SystemExit):
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profiler._run_target_script(script, [])
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def test_run_script_sets_argv(self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
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"""应正确设置 sys.argv。"""
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script = tmp_path / "argv.py"
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script.write_text(
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"import sys\nassert sys.argv[0] == __file__\nassert sys.argv[1:] == ['arg1', 'arg2']\n",
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encoding="utf-8",
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)
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profiler._run_target_script(script, ["arg1", "arg2"])
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def test_run_script_adds_dir_to_path(self, tmp_path: Path) -> None:
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"""脚本所在目录应加入 sys.path。"""
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script = tmp_path / "pathcheck.py"
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script.write_text(
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"import sys, os\nassert os.path.dirname(__file__) in sys.path\n",
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encoding="utf-8",
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)
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profiler._run_target_script(script, [])
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class TestOutputReport:
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"""测试 _output_report。"""
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def test_output_text_format(
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self,
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capsys: pytest.CaptureFixture[str],
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) -> None:
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"""text 格式应打印 describe() 到 stdout。"""
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profile = _build_simple_profile()
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profiler._output_report(profile, export="text", output=None, script_stem="test", no_browser=True)
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captured = capsys.readouterr()
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assert "PyFlowX 性能剖面报告" in captured.out
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assert "图级指标" in captured.out
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def test_output_html_default_filename(self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
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"""HTML 默认输出到 <script>_profile.html。"""
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monkeypatch.chdir(tmp_path)
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profile = _build_simple_profile()
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profiler._output_report(profile, export="html", output=None, script_stem="mymake", no_browser=True)
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out_file = tmp_path / "mymake_profile.html"
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assert out_file.exists()
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content = out_file.read_text(encoding="utf-8")
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assert "PyFlowX 性能剖面报告" in content
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def test_output_html_custom_path(self, tmp_path: Path) -> None:
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"""HTML 应写入指定路径。"""
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out_file = tmp_path / "custom.html"
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profile = _build_simple_profile()
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profiler._output_report(profile, export="html", output=str(out_file), script_stem="test", no_browser=True)
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assert out_file.exists()
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assert "PyFlowX" in out_file.read_text(encoding="utf-8")
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def test_output_html_opens_browser(self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
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"""no_browser=False 应调用 webbrowser.open。"""
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monkeypatch.chdir(tmp_path)
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opened: list[str] = []
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monkeypatch.setattr(profiler.webbrowser, "open", opened.append)
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profile = _build_simple_profile()
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profiler._output_report(profile, export="html", output=None, script_stem="test", no_browser=False)
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assert len(opened) == 1
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assert opened[0].startswith("file://")
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def test_output_html_no_browser_flag(self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
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"""no_browser=True 不应调用 webbrowser.open。"""
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monkeypatch.chdir(tmp_path)
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opened: list[str] = []
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monkeypatch.setattr(profiler.webbrowser, "open", opened.append)
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profile = _build_simple_profile()
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profiler._output_report(profile, export="html", output=None, script_stem="test", no_browser=True)
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assert len(opened) == 0
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class TestProfilerMainIntegration:
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"""main() 集成测试。"""
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def test_main_analyses_script_with_px_run(self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
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"""main() 应分析含 px.run() 的脚本并生成 HTML。"""
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script = tmp_path / "mytool.py"
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script.write_text(
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"import pyflowx as px\n"
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"graph = px.Graph.from_specs([\n"
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" px.TaskSpec('a', lambda: 1),\n"
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" px.TaskSpec('b', lambda: 2, depends_on=('a',)),\n"
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"])\n"
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"px.run(graph, strategy='sequential')\n",
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encoding="utf-8",
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)
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out_file = tmp_path / "report.html"
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monkeypatch.setattr(sys, "argv", ["pxp", "--no-browser", "-o", str(out_file), str(script)])
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profiler.main()
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assert out_file.exists()
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content = out_file.read_text(encoding="utf-8")
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assert "PyFlowX 性能剖面报告" in content
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assert "任务时间线" in content
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def test_main_analyses_script_with_clirunner(self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
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"""main() 应分析含 CliRunner 的脚本。"""
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script = tmp_path / "clirunner_tool.py"
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script.write_text(
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"import pyflowx as px\n"
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"runner = px.CliRunner(\n"
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" aliases={'t': px.TaskSpec('t', lambda: 1)},\n"
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")\n"
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"runner.run_cli(['t'])\n",
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encoding="utf-8",
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)
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out_file = tmp_path / "report.html"
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monkeypatch.setattr(sys, "argv", ["pxp", "--no-browser", "-o", str(out_file), str(script)])
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profiler.main()
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assert out_file.exists()
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content = out_file.read_text(encoding="utf-8")
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assert "PyFlowX 性能剖面报告" in content
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def test_main_text_export(
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self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch, capsys: pytest.CaptureFixture[str]
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||||
) -> None:
|
||||
"""main() -E text 应输出文本到 stdout。"""
|
||||
script = tmp_path / "simple.py"
|
||||
script.write_text(
|
||||
"import pyflowx as px\n"
|
||||
"graph = px.Graph.from_specs([px.TaskSpec('a', lambda: 1)])\n"
|
||||
"px.run(graph, strategy='sequential')\n",
|
||||
encoding="utf-8",
|
||||
)
|
||||
monkeypatch.setattr(sys, "argv", ["pxp", "-E", "text", "--no-browser", str(script)])
|
||||
|
||||
profiler.main()
|
||||
captured = capsys.readouterr()
|
||||
assert "PyFlowX 性能剖面报告" in captured.out
|
||||
|
||||
def test_main_script_not_exist(
|
||||
self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch, capsys: pytest.CaptureFixture[str]
|
||||
) -> None:
|
||||
"""脚本不存在应以退出码 2 退出。"""
|
||||
monkeypatch.setattr(sys, "argv", ["pxp", "--no-browser", str(tmp_path / "nonexistent.py")])
|
||||
with pytest.raises(SystemExit) as exc_info:
|
||||
profiler.main()
|
||||
assert exc_info.value.code == 2
|
||||
|
||||
def test_main_no_px_run_captured(self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
|
||||
"""脚本未调用 px.run() 应以退出码 1 退出。"""
|
||||
script = tmp_path / "no_run.py"
|
||||
script.write_text("print('just printing')\n", encoding="utf-8")
|
||||
monkeypatch.setattr(sys, "argv", ["pxp", "--no-browser", str(script)])
|
||||
with pytest.raises(SystemExit) as exc_info:
|
||||
profiler.main()
|
||||
assert exc_info.value.code == 1
|
||||
|
||||
def test_main_passes_script_args(self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
|
||||
"""应将脚本参数传递给目标脚本。"""
|
||||
script = tmp_path / "argcheck.py"
|
||||
script.write_text(
|
||||
"import sys\n"
|
||||
"assert sys.argv[1:] == ['myarg'], f'got {sys.argv[1:]}'\n"
|
||||
"import pyflowx as px\n"
|
||||
"px.run(px.Graph.from_specs([px.TaskSpec('a', lambda: 1)]), strategy='sequential')\n",
|
||||
encoding="utf-8",
|
||||
)
|
||||
out_file = tmp_path / "report.html"
|
||||
monkeypatch.setattr(sys, "argv", ["pxp", "--no-browser", "-o", str(out_file), str(script), "myarg"])
|
||||
|
||||
profiler.main() # 不抛异常即成功
|
||||
|
||||
def test_main_handles_script_exception(self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
|
||||
"""脚本抛异常时应捕获并继续生成报告（如果有 report）。"""
|
||||
script = tmp_path / "raise.py"
|
||||
script.write_text(
|
||||
"import pyflowx as px\n"
|
||||
"px.run(px.Graph.from_specs([px.TaskSpec('a', lambda: 1)]), strategy='sequential')\n"
|
||||
"raise RuntimeError('after run')\n",
|
||||
encoding="utf-8",
|
||||
)
|
||||
out_file = tmp_path / "report.html"
|
||||
monkeypatch.setattr(sys, "argv", ["pxp", "--no-browser", "-o", str(out_file), str(script)])
|
||||
|
||||
profiler.main() # 不抛异常即成功
|
||||
assert out_file.exists()
|
||||
|
||||
def test_main_auto_calls_main_when_no_main_block(self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
|
||||
"""脚本无 __main__ 块但定义了 main() 时应自动调用。"""
|
||||
script = tmp_path / "no_main_block.py"
|
||||
script.write_text(
|
||||
"import pyflowx as px\n"
|
||||
"def main():\n"
|
||||
" px.run(px.Graph.from_specs([px.TaskSpec('a', lambda: 1)]), strategy='sequential')\n"
|
||||
"# 无 if __name__ == '__main__' 块\n",
|
||||
encoding="utf-8",
|
||||
)
|
||||
out_file = tmp_path / "report.html"
|
||||
monkeypatch.setattr(sys, "argv", ["pxp", "--no-browser", "-o", str(out_file), str(script)])
|
||||
|
||||
profiler.main()
|
||||
assert out_file.exists()
|
||||
|
||||
def test_main_auto_calls_main_with_clirunner(self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
|
||||
"""脚本无 __main__ 块但定义了调用 CliRunner 的 main() 时应自动调用。"""
|
||||
script = tmp_path / "cli_tool.py"
|
||||
script.write_text(
|
||||
"import pyflowx as px\n"
|
||||
"def main():\n"
|
||||
" runner = px.CliRunner(\n"
|
||||
" aliases={'t': px.TaskSpec('t', lambda: 1)},\n"
|
||||
" )\n"
|
||||
" runner.run_cli(['t'])\n",
|
||||
encoding="utf-8",
|
||||
)
|
||||
out_file = tmp_path / "report.html"
|
||||
monkeypatch.setattr(sys, "argv", ["pxp", "--no-browser", "-o", str(out_file), str(script), "t"])
|
||||
|
||||
profiler.main()
|
||||
assert out_file.exists()
|
||||
content = out_file.read_text(encoding="utf-8")
|
||||
assert "PyFlowX 性能剖面报告" in content
|
||||
|
||||
def test_main_no_main_function_exits_with_1(self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
|
||||
"""脚本无 main() 且未调用 px.run() 应以退出码 1 退出。"""
|
||||
script = tmp_path / "no_main.py"
|
||||
script.write_text("x = 1\n", encoding="utf-8")
|
||||
monkeypatch.setattr(sys, "argv", ["pxp", "--no-browser", str(script)])
|
||||
with pytest.raises(SystemExit) as exc_info:
|
||||
profiler.main()
|
||||
assert exc_info.value.code == 1
|
||||
|
||||
|
||||
class TestTryCallMain:
|
||||
"""测试 _try_call_main。"""
|
||||
|
||||
def test_calls_main_when_present(self) -> None:
|
||||
"""模块字典含 main 可调用对象时应调用它。"""
|
||||
called: list[bool] = []
|
||||
|
||||
def fake_main() -> None:
|
||||
called.append(True)
|
||||
|
||||
profiler._try_call_main({"main": fake_main})
|
||||
assert called == [True]
|
||||
|
||||
def test_no_main_does_nothing(self) -> None:
|
||||
"""模块字典不含 main 时不应报错。"""
|
||||
profiler._try_call_main({}) # 不抛异常即成功
|
||||
|
||||
def test_non_callable_main_does_nothing(self) -> None:
|
||||
"""main 不是可调用对象时不应报错。"""
|
||||
profiler._try_call_main({"main": "not a function"}) # 不抛异常即成功
|
||||
Reference in New Issue
Block a user