Test for a more informative message when a Java StackOverflowError is raised

jimbaker · jimbaker · commit fe711e548697 · 2014-05-23T13:54:07.000-06:00
diff --git a/Lib/test/test_exceptions_jy.py b/Lib/test/test_exceptions_jy.py
@@ -4,6 +4,8 @@
 """
 from test import test_support
 import unittest
+from javatests import StackOverflowErrorTest
+
 
 class C:
     def __str__(self):
@@ -41,6 +43,19 @@ def testBugFix1149372(self):
             return
         unittest.fail("if __str__ raises an exception, re-raise")
 
+    def test_wrap_StackOverflowError(self):
+        with self.assertRaises(RuntimeError) as cm:
+            StackOverflowErrorTest.throwStackOverflowError()
+        self.assertEqual(
+            cm.exception.message,
+            "maximum recursion depth exceeded (Java StackOverflowError)")
+
+        with self.assertRaises(RuntimeError) as cm:
+            StackOverflowErrorTest.causeStackOverflowError()
+        self.assertEqual(
+            cm.exception.message,
+            "maximum recursion depth exceeded (Java StackOverflowError)")
+
 
 def test_main():
     test_support.run_unittest(ExceptionsTestCase)
diff --git a/tests/java/javatests/StackOverflowErrorTest.java b/tests/java/javatests/StackOverflowErrorTest.java
@@ -0,0 +1,12 @@
+package javatests;
+
+public class StackOverflowErrorTest {
+
+    public static void throwStackOverflowError() {
+	throw new StackOverflowError();
+    }
+
+    public static void causeStackOverflowError() {
+	causeStackOverflowError();
+    }
+}
