config: Add a test for -o with invalid option (#13980)

The-Compiler · web-flow · commit 9f992b8b6126 · 2025-11-21T12:35:27.000-03:00
This was ignored until #13830. With that change, it now gets correctly surfaced to the user as a warning (or error with --strict-config), so we should have a test for it.
diff --git a/testing/test_config.py b/testing/test_config.py
@@ -2356,7 +2356,14 @@ def test_override_ini_without_config_file(self, pytester: Pytester) -> None:
             }
         )
         result = pytester.runpytest("--override-ini", "pythonpath=src")
-        assert result.parseoutcomes() == {"passed": 1}
+        result.assert_outcomes(passed=1)
+
+    def test_override_ini_invalid_option(self, pytester: Pytester) -> None:
+        result = pytester.runpytest("--override-ini", "doesnotexist=true")
+        result.stdout.fnmatch_lines([
+            "=*= warnings summary =*=",
+            "*PytestConfigWarning:*Unknown config option: doesnotexist",
+        ])
 
 
 def test_help_via_addopts(pytester: Pytester) -> None:

Original file line number	Diff line number	Diff line change
`@@ -2356,7 +2356,14 @@ def test_override_ini_without_config_file(self, pytester: Pytester) -> None:`
`2356`	`2356`	`}`
`2357`	`2357`	`)`
`2358`	`2358`	`result = pytester.runpytest("--override-ini", "pythonpath=src")`
`2359`		`- assert result.parseoutcomes() == {"passed": 1}`
	`2359`	`+ result.assert_outcomes(passed=1)`
	`2360`	`+`
	`2361`	`+ def test_override_ini_invalid_option(self, pytester: Pytester) -> None:`
	`2362`	`+ result = pytester.runpytest("--override-ini", "doesnotexist=true")`
	`2363`	`+ result.stdout.fnmatch_lines([`
	`2364`	`+ "== warnings summary ==",`
	`2365`	`+ "PytestConfigWarning:Unknown config option: doesnotexist",`
	`2366`	`+ ])`
`2360`	`2367`
`2361`	`2368`
`2362`	`2369`	`def test_help_via_addopts(pytester: Pytester) -> None:`