98 lines
3.2 KiB
Python
98 lines
3.2 KiB
Python
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from typing import Generator
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from typing import Optional
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from typing import Union
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import pytest
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from _pytest._io.saferepr import saferepr
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from _pytest.config import Config
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from _pytest.config import ExitCode
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from _pytest.config.argparsing import Parser
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from _pytest.fixtures import FixtureDef
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from _pytest.fixtures import SubRequest
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from _pytest.scope import Scope
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def pytest_addoption(parser: Parser) -> None:
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group = parser.getgroup("debugconfig")
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group.addoption(
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"--setuponly",
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"--setup-only",
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action="store_true",
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help="Only setup fixtures, do not execute tests",
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)
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group.addoption(
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"--setupshow",
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"--setup-show",
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action="store_true",
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help="Show setup of fixtures while executing tests",
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)
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@pytest.hookimpl(hookwrapper=True)
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def pytest_fixture_setup(
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fixturedef: FixtureDef[object], request: SubRequest
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) -> Generator[None, None, None]:
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yield
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if request.config.option.setupshow:
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if hasattr(request, "param"):
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# Save the fixture parameter so ._show_fixture_action() can
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# display it now and during the teardown (in .finish()).
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if fixturedef.ids:
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if callable(fixturedef.ids):
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param = fixturedef.ids(request.param)
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else:
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param = fixturedef.ids[request.param_index]
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else:
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param = request.param
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fixturedef.cached_param = param # type: ignore[attr-defined]
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_show_fixture_action(fixturedef, "SETUP")
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def pytest_fixture_post_finalizer(fixturedef: FixtureDef[object]) -> None:
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if fixturedef.cached_result is not None:
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config = fixturedef._fixturemanager.config
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if config.option.setupshow:
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_show_fixture_action(fixturedef, "TEARDOWN")
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if hasattr(fixturedef, "cached_param"):
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del fixturedef.cached_param # type: ignore[attr-defined]
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def _show_fixture_action(fixturedef: FixtureDef[object], msg: str) -> None:
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config = fixturedef._fixturemanager.config
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capman = config.pluginmanager.getplugin("capturemanager")
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if capman:
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capman.suspend_global_capture()
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tw = config.get_terminal_writer()
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tw.line()
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# Use smaller indentation the higher the scope: Session = 0, Package = 1, etc.
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scope_indent = list(reversed(Scope)).index(fixturedef._scope)
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tw.write(" " * 2 * scope_indent)
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tw.write(
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"{step} {scope} {fixture}".format(
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step=msg.ljust(8), # align the output to TEARDOWN
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scope=fixturedef.scope[0].upper(),
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fixture=fixturedef.argname,
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)
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)
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if msg == "SETUP":
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deps = sorted(arg for arg in fixturedef.argnames if arg != "request")
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if deps:
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tw.write(" (fixtures used: {})".format(", ".join(deps)))
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if hasattr(fixturedef, "cached_param"):
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tw.write(f"[{saferepr(fixturedef.cached_param, maxsize=42)}]") # type: ignore[attr-defined]
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tw.flush()
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if capman:
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capman.resume_global_capture()
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@pytest.hookimpl(tryfirst=True)
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def pytest_cmdline_main(config: Config) -> Optional[Union[int, ExitCode]]:
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if config.option.setuponly:
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config.option.setupshow = True
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return None
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