test: parameterize report-chars option parsing to cover short and long forms with various values.

Author: junhaoliao

testing/test_config.py

@@ -97,13 +97,29 @@ def test_append_parse_args(
         assert config.option.tbstyle == "short"
         assert config.option.verbose
 
-    def test_report_chars_long_option(
-        self, pytester: Pytester, tmp_path: Path, monkeypatch: MonkeyPatch
+    @pytest.mark.parametrize(
+        "opts, expected",
+        [
+            ("-rfE", "fE"),
+            ("--report-chars=fE", "fE"),
+            ("-rA", "A"),
+            ("--report-chars=A", "A"),
+            ("-rfs", "fs"),
+            ("--report-chars=fs", "fs"),
+        ],
+    )
+    def test_report_chars_option(
+        self,
+        pytester: Pytester,
+        tmp_path: Path,
+        monkeypatch: MonkeyPatch,
+        opts: str,
+        expected: str,
     ) -> None:
-        """Test that --report-chars is parsed correctly."""
-        monkeypatch.setenv("PYTEST_ADDOPTS", "--report-chars=fE")
+        """Test that -r/--report-chars is parsed correctly."""
+        monkeypatch.setenv("PYTEST_ADDOPTS", opts)
         config = pytester.parseconfig(tmp_path)
-        assert config.option.reportchars == "fE"
+        assert config.option.reportchars == expected
 
     def test_tox_ini_wrong_version(self, pytester: Pytester) -> None:
         pytester.makefile(