[GitHub] [beam] pabloem commented on pull request #22233: Trying out property-based tests for Beam python coders

[GitBox <gi...@apache.org>]

pabloem commented on PR #22233:
URL: https://github.com/apache/beam/pull/22233#issuecomment-1182555838

   Example of the sort of failures that these tests will find:
   ```
   dt = datetime.datetime(3002, 1, 1, 0, 0)
   >           lambda dt: Timestamp.from_utc_datetime(dt.astimezone(utc))),
           int: st.integers(min_value=-(1 << 64 - 1), max_value=1 << 64 - 1),
           np.int32: st.integers(min_value=-(1 << 31 - 1), max_value=1 << 31 - 1),
           np.int64: st.integers(min_value=-(1 << 64 - 1), max_value=1 << 64 - 1),
           np.uint32: st.integers(min_value=0, max_value=1 << 32 - 1),
           np.uint64: st.integers(min_value=0, max_value=1 << 65 - 1),
           bool: st.booleans()
       }
   E   OSError: [Errno 22] Invalid argument
   ```
   
   In this case, datetime in year 3002 is not supported? Taking a look...


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