issue_comments: 1033137904

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https://github.com/pydata/xarray/pull/6251#issuecomment-1033137904 https://api.github.com/repos/pydata/xarray/issues/6251 1033137904 IC_kwDOAMm_X849lG7w 10194086 2022-02-08T22:46:00Z 2022-02-08T22:46:00Z MEMBER

Nice suggestion. How about assert_no_warnings? Not sure if supress_warnings is a bit over the top?

```python from contextlib import contextmanager import warnings

@contextmanager def assert_no_warnings():

with warnings.catch_warnings(record=True) as record:
    yield
    assert len(record) == 0, "got unexpected warning(s)"

@contextmanager def supress_warnings(*messages):

messages = ("",) if not messages else messages
with warnings.catch_warnings():
    for message in messages:
        warnings.filterwarnings("ignore", message)
    yield

```

```python with supress_warnings(): warnings.warn("test")

with supress_warnings("test"): warnings.warn("test")

with supress_warnings("not test", "something else"): warnings.warn("test")

with assert_no_warnings(): pass

with assert_no_warnings(): warnings.warn("test") ```

 
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