[JUnit] Fix Windows drive paths

auto/stylize_as_junit.py

@@ -40,9 +40,7 @@ def run(self):
                 raise Exception("Empty test result file: %s" % result_file)
 
             # define an expression for your file reference
-            entry_one = Combine(
-                oneOf(list(alphas)) + ':/' +
-                Word(alphanums + '_-./'))
+            entry_one = Regex(r'[A-Za-z]:[\\/][^:\r\n]+')
 
             entry_two = Word(printables + ' ', excludeChars=':')
             entry = entry_one | entry_two

docs/UnityChangeLog.md

@@ -17,6 +17,7 @@ Prior to 2008, the project was an internal project and not released to the publi
 
 Significant Bugfixes:
 
+  - Correct Windows drive paths in the Python JUnit converter (#628) @nailongzhanshen666
   - Default `UNITY_INCLUDE_EXEC_TIME` macros compile as ISO C99, are statement-safe, and accept `-Wsign-conversion` (#838)
   - `unity_test_summary.rb` honors its own default result directory and root path again. @youdie006
 

test/test_stylize_as_junit.py

@@ -0,0 +1,70 @@
+#!/usr/bin/env python3
+# Copyright (c) 2026 Unity Project
+# SPDX-License-Identifier: MIT
+
+"""Regression tests for the Unity-to-JUnit converter."""
+
+import importlib.util
+from pathlib import Path
+import tempfile
+import unittest
+import xml.etree.ElementTree as ET
+
+
+SCRIPT = Path(__file__).resolve().parents[1] / 'auto' / 'stylize_as_junit.py'
+SPEC = importlib.util.spec_from_file_location('stylize_as_junit', SCRIPT)
+CONVERTER = importlib.util.module_from_spec(SPEC)
+SPEC.loader.exec_module(CONVERTER)
+
+
+class WindowsPathsTest(unittest.TestCase):
+    def test_paths_preserve_failure_details(self):
+        paths = [
+            r'C:\Path\To\My File\test_example.c',
+            'C:/Path/To/My File/test_example.c',
+            'D:/path/test_example.c',
+            '/tmp/test_example.c',
+            'test_example.c',
+        ]
+        for path in paths:
+            with self.subTest(path=path), tempfile.TemporaryDirectory() as tmp:
+                result = Path(tmp) / 'example.testfail'
+                output = Path(tmp) / 'result.xml'
+                result.write_text(f'{path}:24:test_example:FAIL:expected 2 was 1\n')
+                summary = CONVERTER.UnityTestSummary()
+                summary.set_targets([str(result)])
+                summary.set_output(str(output))
+                summary.run()
+                suite = ET.parse(output).getroot()
+                case = suite.find('.//testcase')
+                self.assertEqual(case.attrib['name'], 'test_example')
+                self.assertEqual(case.attrib['classname'], 'test_example')
+                failure = case.find('failure')
+                self.assertIsNotNone(failure)
+                self.assertEqual(failure.attrib['message'], 'expected 2 was 1')
+                self.assertIn('[File]=' + path + ', [Line]=24', failure.text)
+
+    def test_windows_pass_and_ignore(self):
+        with tempfile.TemporaryDirectory() as tmp:
+            result = Path(tmp) / 'example.testpass'
+            output = Path(tmp) / 'result.xml'
+            result.write_text(
+                'C:/My Tests/test_example.c:12:test_pass:PASS\n'
+                'C:\\My Tests\\test_example.c:13:test_ignore:IGNORE:not ready\n'
+            )
+            summary = CONVERTER.UnityTestSummary()
+            summary.set_targets([str(result)])
+            summary.set_output(str(output))
+            summary.run()
+            cases = ET.parse(output).getroot().findall('.//testcase')
+            self.assertEqual([case.attrib['name'] for case in cases],
+                             ['test_pass', 'test_ignore'])
+            self.assertTrue(all(case.attrib['classname'] == 'test_example'
+                                for case in cases))
+            self.assertIsNone(cases[0].find('failure'))
+            self.assertEqual(cases[1].find('skipped').attrib['message'],
+                             'not ready')
+
+
+if __name__ == '__main__':
+    unittest.main()