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Merged
1st1 merged 1 commit into from
Jan 29, 2018
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bpo-32650: Add an asyncgen pdb test #5406

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60 changes: 60 additions & 0 deletions Lib/test/test_pdb.py
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Original file line number Diff line number Diff line change
Expand Up @@ -782,6 +782,66 @@ def test_pdb_next_command_for_coroutine():
finished
"""

def test_pdb_next_command_for_asyncgen():
"""Testing skip unwindng stack on yield for coroutines for "next" command

>>> import asyncio

>>> async def agen():
... yield 1
... await asyncio.sleep(0)
... yield 2

>>> async def test_coro():
... async for x in agen():
... print(x)

>>> async def test_main():
... import pdb; pdb.Pdb(nosigint=True, readrc=False).set_trace()
... await test_coro()

>>> def test_function():
... loop = asyncio.new_event_loop()
... loop.run_until_complete(test_main())
... loop.close()
... print("finished")

>>> with PdbTestInput(['step',
... 'step',
... 'next',
... 'next',
... 'step',
... 'next',
... 'continue']):
... test_function()
> <doctest test.test_pdb.test_pdb_next_command_for_asyncgen[3]>(3)test_main()
-> await test_coro()
(Pdb) step
--Call--
> <doctest test.test_pdb.test_pdb_next_command_for_asyncgen[2]>(1)test_coro()
-> async def test_coro():
(Pdb) step
> <doctest test.test_pdb.test_pdb_next_command_for_asyncgen[2]>(2)test_coro()
-> async for x in agen():
(Pdb) next
> <doctest test.test_pdb.test_pdb_next_command_for_asyncgen[2]>(3)test_coro()
-> print(x)
(Pdb) next
1
> <doctest test.test_pdb.test_pdb_next_command_for_asyncgen[2]>(2)test_coro()
-> async for x in agen():
(Pdb) step
--Call--
> <doctest test.test_pdb.test_pdb_next_command_for_asyncgen[1]>(2)agen()
-> yield 1
(Pdb) next
> <doctest test.test_pdb.test_pdb_next_command_for_asyncgen[1]>(3)agen()
-> await asyncio.sleep(0)
(Pdb) continue
2
finished
"""

def test_pdb_return_command_for_generator():
"""Testing no unwindng stack on yield for generators
for "return" command
Expand Down