1 files changed, 18 insertions, 0 deletions
diff --git a/lib/greenlet/tests/test_cpp.py b/lib/greenlet/tests/test_cpp.py
new file mode 100644
index 0000000..741ea10
--- /dev/null
+++ b/lib/greenlet/tests/test_cpp.py
@@ -0,0 +1,18 @@
+from __future__ import print_function
+from __future__ import absolute_import
+
+import unittest
+
+import greenlet
+from . import _test_extension_cpp
+
+
+class CPPTests(unittest.TestCase):
+    def test_exception_switch(self):
+        greenlets = []
+        for i in range(4):
+            g = greenlet.greenlet(_test_extension_cpp.test_exception_switch)
+            g.switch(i)
+            greenlets.append(g)
+        for i, g in enumerate(greenlets):
+            self.assertEqual(g.switch(), i)