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With the tracer on, modules at shutdown can be destroyed in an order that prevents the `trace()` function from working. This was currently the case with Python 3.13 where the function was still being called during the `xonsh.tracer` module's destruction. This change adds a test to prevent this from happening in the future, and works around the issue by creating local references to necessary functions that were otherwise set to None at shutdown.
55 lines
2.1 KiB
Python
55 lines
2.1 KiB
Python
import os
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import re
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import subprocess
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import sys
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from pathlib import Path
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from textwrap import dedent
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import pytest
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from xonsh.procs.specs import cmds_to_specs
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from xonsh.tracer import tracermain
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# Minimum set of environment variables on Windows
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W_ENV = "SYSTEMDRIVE SYSTEMROOT ALLUSERSPROFILE HOMEDRIVE HOMEPATH APPDATA LOCALAPPDATA"
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def test_tracer_help(capsys, xsh_with_aliases):
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"""verify can invoke it, and usage knows about all the options"""
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spec = cmds_to_specs([("trace", "-h")], captured="stdout")[0]
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with pytest.raises(SystemExit):
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tracermain(["-h"], spec=spec)
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capout = capsys.readouterr().out
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pat = re.compile(r"^usage:\s*trace[^\n]*{([\w,-]+)}", re.MULTILINE)
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m = pat.match(capout)
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assert m[1]
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verbs = {v.strip().lower() for v in m[1].split(",")}
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assert verbs == {"rm", "start", "add", "on", "off", "del", "color", "stop", "ls"}
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def test_trace_in_script():
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CURRENT_DIR = Path(__file__).parent
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cmd = [sys.executable, "-m", "xonsh", str(CURRENT_DIR / "tracer" / "example.xsh")]
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env = {"XONSH_SHOW_TRACEBACK": "True"}
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if sys.platform == "win32":
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# required for an empty environment on Windows. see python/cpython#120836
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for ev in W_ENV.split():
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env[ev] = os.environ[ev]
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expected = dedent(
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"""\
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Some output!
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tests/built_ins/tracer/example.xsh:3:variable = ""
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tests/built_ins/tracer/example.xsh:4:for part in parts:
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tests/built_ins/tracer/example.xsh:5: variable += part
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tests/built_ins/tracer/example.xsh:4:for part in parts:
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tests/built_ins/tracer/example.xsh:5: variable += part
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tests/built_ins/tracer/example.xsh:4:for part in parts:
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tests/built_ins/tracer/example.xsh:5: variable += part
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tests/built_ins/tracer/example.xsh:4:for part in parts:
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tests/built_ins/tracer/example.xsh:6:echo Some @(variable)
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"""
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).replace("/", os.sep)
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proc = subprocess.run(cmd, capture_output=True, encoding="utf8", env=env)
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assert proc.returncode == 0
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assert proc.stderr == ""
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assert proc.stdout == expected
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