1 files changed, 55 insertions, 0 deletions
diff --git a/Lib/test/test_pdb.py b/Lib/test/test_pdb.py
index 85b47d5..9ee1d9d 100644
--- a/Lib/test/test_pdb.py
+++ b/Lib/test/test_pdb.py
@@ -727,6 +727,61 @@ def test_pdb_next_command_for_generator():
     finished
     """
 
+def test_pdb_next_command_for_coroutine():
+    """Testing skip unwindng stack on yield for coroutines for "next" command
+
+    >>> import asyncio
+
+    >>> async def test_coro():
+    ...     await asyncio.sleep(0)
+    ...     await asyncio.sleep(0)
+    ...     await asyncio.sleep(0)
+
+    >>> async def test_main():
+    ...     import pdb; pdb.Pdb(nosigint=True, readrc=False).set_trace()
+    ...     await test_coro()
+
+    >>> def test_function():
+    ...     loop = asyncio.get_event_loop()
+    ...     loop.run_until_complete(test_main())
+    ...     loop.close()
+    ...     print("finished")
+
+    >>> with PdbTestInput(['step',
+    ...                    'step',
+    ...                    'next',
+    ...                    'next',
+    ...                    'next',
+    ...                    'step',
+    ...                    'continue']):
+    ...     test_function()
+    > <doctest test.test_pdb.test_pdb_next_command_for_coroutine[2]>(3)test_main()
+    -> await test_coro()
+    (Pdb) step
+    --Call--
+    > <doctest test.test_pdb.test_pdb_next_command_for_coroutine[1]>(1)test_coro()
+    -> async def test_coro():
+    (Pdb) step
+    > <doctest test.test_pdb.test_pdb_next_command_for_coroutine[1]>(2)test_coro()
+    -> await asyncio.sleep(0)
+    (Pdb) next
+    > <doctest test.test_pdb.test_pdb_next_command_for_coroutine[1]>(3)test_coro()
+    -> await asyncio.sleep(0)
+    (Pdb) next
+    > <doctest test.test_pdb.test_pdb_next_command_for_coroutine[1]>(4)test_coro()
+    -> await asyncio.sleep(0)
+    (Pdb) next
+    Internal StopIteration
+    > <doctest test.test_pdb.test_pdb_next_command_for_coroutine[2]>(3)test_main()
+    -> await test_coro()
+    (Pdb) step
+    --Return--
+    > <doctest test.test_pdb.test_pdb_next_command_for_coroutine[2]>(3)test_main()->None
+    -> await test_coro()
+    (Pdb) continue
+    finished
+    """
+
 def test_pdb_return_command_for_generator():
     """Testing no unwindng stack on yield for generators
        for "return" command