Regression test for #1194

test/jpypetest/test_non_ascii_paths.py

@@ -0,0 +1,45 @@
+"""
+Regression test for https://github.com/jpype-project/jpype/issues/1194
+"""
+
+import unittest
+import jpype
+from pathlib import Path
+import shutil
+from multiprocessing import get_context, Queue, Process
+
+
+class TestNonAsciiPaths(unittest.TestCase):
+
+    def setUp(self):
+        # Create a copy of the mrjar.jar file with a non-ASCII path.
+        mrjar_path = Path("test/jar/mrjar.jar")
+        self.mrjar_non_ascii = Path("test/jar/à_non_ascii/mrjar.jar")
+        self.mrjar_non_ascii.parent.mkdir(exist_ok=True)
+        shutil.copy(mrjar_path, self.mrjar_non_ascii)
+
+    def tearDown(self):
+        # Clean up the non-ASCII path.
+        self.mrjar_non_ascii.unlink()
+        self.mrjar_non_ascii.parent.rmdir()
+
+    @staticmethod
+    def _subproc_test_non_ascii_paths(path: str, queue: Queue):
+        # Can `dir` be called on a package with a non-ASCII path?
+        jpype.addClassPath(path)
+        jpype.startJVM(jpype.getDefaultJVMPath())
+        queue.put(dir(jpype.JPackage("org.jpype.mrjar")))
+        jpype.shutdownJVM()
+
+    def test_non_ascii_paths(self):
+        # Uses a separate process to avoid polluting the main process with
+        # a JVM instance, since restarting the JVM is not supported.
+        ctx = get_context("spawn")
+        queue: Queue = ctx.Queue()
+        path = self.mrjar_non_ascii.absolute().as_posix()
+        proc: Process = ctx.Process(
+            target=self._subproc_test_non_ascii_paths, args=(path, queue)
+        )
+        proc.start()
+        proc.join(5)
+        assert queue.get() == ["A", "B", "sub"]