dbcli / mycli

A Terminal Client for MySQL with AutoCompletion and Syntax Highlighting.
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Tests: monkeypatch shutil.get_terminal_size properly #1152

Closed hroncok closed 3 months ago

hroncok commented 3 months ago

The original way led to very confusing internal pytest errors when the test failed.

When the test failed, the original function was not restored, and pytest uses it:

INTERNALERROR> Traceback (most recent call last):
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/_pytest/main.py", line 271, in wrap_session
INTERNALERROR>     session.exitstatus = doit(config, session) or 0
INTERNALERROR>                          ~~~~^^^^^^^^^^^^^^^^^
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/_pytest/main.py", line 325, in _main
INTERNALERROR>     config.hook.pytest_runtestloop(session=session)
INTERNALERROR>     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/pluggy/_hooks.py", line 493, in __call__
INTERNALERROR>     return self._hookexec(self.name, self._hookimpls, kwargs, firstresult)
INTERNALERROR>            ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/pluggy/_manager.py", line 115, in _hookexec
INTERNALERROR>     return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
INTERNALERROR>            ~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/pluggy/_callers.py", line 152, in _multicall
INTERNALERROR>     return outcome.get_result()
INTERNALERROR>            ~~~~~~~~~~~~~~~~~~^^
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/pluggy/_result.py", line 114, in get_result
INTERNALERROR>     raise exc.with_traceback(exc.__traceback__)
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/pluggy/_callers.py", line 77, in _multicall
INTERNALERROR>     res = hook_impl.function(*args)
INTERNALERROR>           ~~~~~~~~~~~~~~~~~~^^^^^^^
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/_pytest/main.py", line 350, in pytest_runtestloop
INTERNALERROR>     item.config.hook.pytest_runtest_protocol(item=item, nextitem=nextitem)
INTERNALERROR>     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/pluggy/_hooks.py", line 493, in __call__
INTERNALERROR>     return self._hookexec(self.name, self._hookimpls, kwargs, firstresult)
INTERNALERROR>            ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/pluggy/_manager.py", line 115, in _hookexec
INTERNALERROR>     return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
INTERNALERROR>            ~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/pluggy/_callers.py", line 152, in _multicall
INTERNALERROR>     return outcome.get_result()
INTERNALERROR>            ~~~~~~~~~~~~~~~~~~^^
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/pluggy/_result.py", line 114, in get_result
INTERNALERROR>     raise exc.with_traceback(exc.__traceback__)
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/pluggy/_callers.py", line 77, in _multicall
INTERNALERROR>     res = hook_impl.function(*args)
INTERNALERROR>           ~~~~~~~~~~~~~~~~~~^^^^^^^
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/_pytest/runner.py", line 113, in pytest_runtest_protocol
INTERNALERROR>     ihook.pytest_runtest_logstart(nodeid=item.nodeid, location=item.location)
INTERNALERROR>     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/pluggy/_hooks.py", line 493, in __call__
INTERNALERROR>     return self._hookexec(self.name, self._hookimpls, kwargs, firstresult)
INTERNALERROR>            ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/pluggy/_manager.py", line 115, in _hookexec
INTERNALERROR>     return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
INTERNALERROR>            ~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/pluggy/_callers.py", line 113, in _multicall
INTERNALERROR>     raise exception.with_traceback(exception.__traceback__)
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/pluggy/_callers.py", line 77, in _multicall
INTERNALERROR>     res = hook_impl.function(*args)
INTERNALERROR>           ~~~~~~~~~~~~~~~~~~^^^^^^^
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/_pytest/terminal.py", line 566, in pytest_runtest_logstart
INTERNALERROR>     self.write_fspath_result(nodeid, "")
INTERNALERROR>     ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/_pytest/terminal.py", line 430, in write_fspath_result
INTERNALERROR>     self._write_progress_information_filling_space()
INTERNALERROR>     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/_pytest/terminal.py", line 684, in _write_progress_information_filling_space
INTERNALERROR>     fill = self._tw.fullwidth - w - 1
INTERNALERROR>            ^^^^^^^^^^^^^^^^^^
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/_pytest/_io/terminalwriter.py", line 86, in fullwidth
INTERNALERROR>     return get_terminal_width()
INTERNALERROR>            ~~~~~~~~~~~~~~~~~~^^
INTERNALERROR>   File "/usr/lib/python3.13/site-packages/_pytest/_io/terminalwriter.py", line 17, in get_terminal_width
INTERNALERROR>     width, _ = shutil.get_terminal_size(fallback=(80, 24))
INTERNALERROR>                ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
INTERNALERROR> TypeError: test_reserved_space_is_integer.<locals>.stub_terminal_size() got an unexpected keyword argument 'fallback'

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amjith commented 3 months ago

Thank you!

parona-source commented 3 months ago

This issue unfortunately now shows up if you invoke pytest with verbose and it will have this error even if it succeeds.

Output ``` ask@bigglane /home/ask/sources/mycli (main|u=) $ python3.11 -m pytest -v test/test_main.py::test_reserved_space_is_integer ================================================================== test session starts ================================================================== platform linux -- Python 3.11.8, pytest-7.4.4, pluggy-1.4.0 -- /usr/bin/python3.11 cachedir: .pytest_cache rootdir: /home/ask/sources/mycli configfile: pytest.ini plugins: flaky-3.8.1, asyncio-0.23.6, pytest_httpserver-1.0.10, respx-0.21.1, anyio-4.3.0, pkgcore-0.12.26, xdist-3.5.0 asyncio: mode=Mode.STRICT collected 1 item test/test_main.py::test_reserved_space_is_integer PASSED INTERNALERROR> Traceback (most recent call last): INTERNALERROR> File "/usr/lib/python3.11/site-packages/_pytest/main.py", line 271, in wrap_session INTERNALERROR> session.exitstatus = doit(config, session) or 0 INTERNALERROR> ^^^^^^^^^^^^^^^^^^^^^ INTERNALERROR> File "/usr/lib/python3.11/site-packages/_pytest/main.py", line 325, in _main INTERNALERROR> config.hook.pytest_runtestloop(session=session) INTERNALERROR> File "/usr/lib/python3.11/site-packages/pluggy/_hooks.py", line 501, in __call__ INTERNALERROR> return self._hookexec(self.name, self._hookimpls.copy(), kwargs, firstresult) INTERNALERROR> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ INTERNALERROR> File "/usr/lib/python3.11/site-packages/pluggy/_manager.py", line 119, in _hookexec INTERNALERROR> return self._inner_hookexec(hook_name, methods, kwargs, firstresult) INTERNALERROR> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ INTERNALERROR> File "/usr/lib/python3.11/site-packages/pluggy/_callers.py", line 181, in _multicall INTERNALERROR> return outcome.get_result() INTERNALERROR> ^^^^^^^^^^^^^^^^^^^^ INTERNALERROR> File "/usr/lib/python3.11/site-packages/pluggy/_result.py", line 99, in get_result INTERNALERROR> raise exc.with_traceback(exc.__traceback__) INTERNALERROR> File "/usr/lib/python3.11/site-packages/pluggy/_callers.py", line 102, in _multicall INTERNALERROR> res = hook_impl.function(*args) INTERNALERROR> ^^^^^^^^^^^^^^^^^^^^^^^^^ INTERNALERROR> File "/usr/lib/python3.11/site-packages/_pytest/main.py", line 350, in pytest_runtestloop INTERNALERROR> item.config.hook.pytest_runtest_protocol(item=item, nextitem=nextitem) INTERNALERROR> File "/usr/lib/python3.11/site-packages/pluggy/_hooks.py", line 501, in __call__ INTERNALERROR> return self._hookexec(self.name, self._hookimpls.copy(), kwargs, firstresult) INTERNALERROR> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ INTERNALERROR> File "/usr/lib/python3.11/site-packages/pluggy/_manager.py", line 119, in _hookexec INTERNALERROR> return self._inner_hookexec(hook_name, methods, kwargs, firstresult) INTERNALERROR> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ INTERNALERROR> File "/usr/lib/python3.11/site-packages/pluggy/_callers.py", line 181, in _multicall INTERNALERROR> return outcome.get_result() INTERNALERROR> ^^^^^^^^^^^^^^^^^^^^ INTERNALERROR> File "/usr/lib/python3.11/site-packages/pluggy/_result.py", line 99, in get_result INTERNALERROR> raise exc.with_traceback(exc.__traceback__) INTERNALERROR> File "/usr/lib/python3.11/site-packages/pluggy/_callers.py", line 102, in _multicall INTERNALERROR> res = hook_impl.function(*args) INTERNALERROR> ^^^^^^^^^^^^^^^^^^^^^^^^^ INTERNALERROR> File "/usr/lib/python3.11/site-packages/flaky/flaky_pytest_plugin.py", line 89, in pytest_runtest_protocol INTERNALERROR> self.runner.pytest_runtest_protocol(item, nextitem) INTERNALERROR> File "/usr/lib/python3.11/site-packages/_pytest/runner.py", line 114, in pytest_runtest_protocol INTERNALERROR> runtestprotocol(item, nextitem=nextitem) INTERNALERROR> File "/usr/lib/python3.11/site-packages/_pytest/runner.py", line 133, in runtestprotocol INTERNALERROR> reports.append(call_and_report(item, "call", log)) INTERNALERROR> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ INTERNALERROR> File "/usr/lib/python3.11/site-packages/flaky/flaky_pytest_plugin.py", line 165, in call_and_report INTERNALERROR> hook.pytest_runtest_logreport(report=report) INTERNALERROR> File "/usr/lib/python3.11/site-packages/pluggy/_hooks.py", line 501, in __call__ INTERNALERROR> return self._hookexec(self.name, self._hookimpls.copy(), kwargs, firstresult) INTERNALERROR> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ INTERNALERROR> File "/usr/lib/python3.11/site-packages/pluggy/_manager.py", line 119, in _hookexec INTERNALERROR> return self._inner_hookexec(hook_name, methods, kwargs, firstresult) INTERNALERROR> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ INTERNALERROR> File "/usr/lib/python3.11/site-packages/pluggy/_callers.py", line 138, in _multicall INTERNALERROR> raise exception.with_traceback(exception.__traceback__) INTERNALERROR> File "/usr/lib/python3.11/site-packages/pluggy/_callers.py", line 102, in _multicall INTERNALERROR> res = hook_impl.function(*args) INTERNALERROR> ^^^^^^^^^^^^^^^^^^^^^^^^^ INTERNALERROR> File "/usr/lib/python3.11/site-packages/_pytest/terminal.py", line 622, in pytest_runtest_logreport INTERNALERROR> self._write_progress_information_filling_space() INTERNALERROR> File "/usr/lib/python3.11/site-packages/_pytest/terminal.py", line 684, in _write_progress_information_filling_space INTERNALERROR> fill = self._tw.fullwidth - w - 1 INTERNALERROR> ^^^^^^^^^^^^^^^^^^ INTERNALERROR> File "/usr/lib/python3.11/site-packages/_pytest/_io/terminalwriter.py", line 86, in fullwidth INTERNALERROR> return get_terminal_width() INTERNALERROR> ^^^^^^^^^^^^^^^^^^^^ INTERNALERROR> File "/usr/lib/python3.11/site-packages/_pytest/_io/terminalwriter.py", line 17, in get_terminal_width INTERNALERROR> width, _ = shutil.get_terminal_size(fallback=(80, 24)) INTERNALERROR> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ INTERNALERROR> TypeError: test_reserved_space_is_integer..stub_terminal_size() got an unexpected keyword argument 'fallback' ============================================================= 1 passed, 3 warnings in 0.01s ============================================================= ask@bigglane /home/ask/sources/mycli (main|u=) $ echo $? 3 ```
diff --git a/test/test_main.py b/test/test_main.py
index 2a86c13..adaeddf 100644
--- a/test/test_main.py
+++ b/test/test_main.py
@@ -256,10 +256,8 @@ def test_conditional_pager(monkeypatch):

 def test_reserved_space_is_integer(monkeypatch):
     """Make sure that reserved space is returned as an integer."""
-    def stub_terminal_size():
-        return (5, 5)
-
-    monkeypatch.setattr(shutil, 'get_terminal_size', stub_terminal_size)
+    monkeypatch.setenv("COLUMNS", "5")
+    monkeypatch.setenv("LINES", "5")
     mycli = MyCli()
     assert isinstance(mycli.get_reserved_space(), int)

Modifying env instead wouldn't such issues at least.