CI: Fix IPython Tab Completion test async warning

ci/deps/azure-36-locale.yaml

@@ -9,6 +9,7 @@ dependencies:
   - cython>=0.29.13
   - pytest>=5.0.1
   - pytest-xdist>=1.21
+  - pytest-asyncio
   - hypothesis>=3.58.0
   - pytest-azurepipelines
 

ci/deps/azure-37-locale.yaml

@@ -8,6 +8,7 @@ dependencies:
   - cython>=0.29.13
   - pytest>=5.0.1
   - pytest-xdist>=1.21
+  - pytest-asyncio
   - hypothesis>=3.58.0
   - pytest-azurepipelines
 

environment.yml

@@ -55,6 +55,7 @@ dependencies:
   - pytest>=5.0.1
   - pytest-cov
   - pytest-xdist>=1.21
+  - pytest-asyncio
 
   # downstream tests
   - seaborn

pandas/tests/arrays/categorical/test_warnings.py

@@ -1,16 +1,19 @@
 import pytest
 
+from pandas.util._test_decorators import async_mark
+
 import pandas._testing as tm
 
 
 class TestCategoricalWarnings:
-    def test_tab_complete_warning(self, ip):
+    @async_mark()
+    async def test_tab_complete_warning(self, ip):
         # https://github.com/pandas-dev/pandas/issues/16409
         pytest.importorskip("IPython", minversion="6.0.0")
         from IPython.core.completer import provisionalcompleter
 
         code = "import pandas as pd; c = Categorical([])"
-        ip.run_code(code)
+        await ip.run_code(code)
         with tm.assert_produces_warning(None):
             with provisionalcompleter("ignore"):
                 list(ip.Completer.completions("c.", 1))

pandas/tests/frame/test_api.py

@@ -6,6 +6,7 @@
 import pytest
 
 from pandas.compat import PY37
+from pandas.util._test_decorators import async_mark
 
 import pandas as pd
 from pandas import Categorical, DataFrame, Series, compat, date_range, timedelta_range
@@ -539,13 +540,14 @@ def _check_f(base, f):
         f = lambda x: x.rename({1: "foo"}, inplace=True)
         _check_f(d.copy(), f)
 
-    def test_tab_complete_warning(self, ip):
+    @async_mark()
+    async def test_tab_complete_warning(self, ip):
         # GH 16409
         pytest.importorskip("IPython", minversion="6.0.0")
         from IPython.core.completer import provisionalcompleter
 
         code = "import pandas as pd; df = pd.DataFrame()"
-        ip.run_code(code)
+        await ip.run_code(code)
         with tm.assert_produces_warning(None):
             with provisionalcompleter("ignore"):
                 list(ip.Completer.completions("df.", 1))

pandas/tests/indexes/test_base.py

@@ -12,6 +12,7 @@
 
 from pandas._libs.tslib import Timestamp
 from pandas.compat.numpy import np_datetime64_compat
+from pandas.util._test_decorators import async_mark
 
 from pandas.core.dtypes.common import is_unsigned_integer_dtype
 from pandas.core.dtypes.generic import ABCIndex
@@ -2397,13 +2398,14 @@ def test_cached_properties_not_settable(self):
         with pytest.raises(AttributeError, match="Can't set attribute"):
             index.is_unique = False
 
-    def test_tab_complete_warning(self, ip):
+    @async_mark()
+    async def test_tab_complete_warning(self, ip):
         # https://github.com/pandas-dev/pandas/issues/16409
         pytest.importorskip("IPython", minversion="6.0.0")
         from IPython.core.completer import provisionalcompleter
 
         code = "import pandas as pd; idx = pd.Index([1, 2])"
-        ip.run_code(code)
+        await ip.run_code(code)
         with tm.assert_produces_warning(None):
             with provisionalcompleter("ignore"):
                 list(ip.Completer.completions("idx.", 4))

pandas/tests/resample/test_resampler_grouper.py

@@ -2,6 +2,8 @@
 
 import numpy as np
 
+from pandas.util._test_decorators import async_mark
+
 import pandas as pd
 from pandas import DataFrame, Series, Timestamp
 import pandas._testing as tm
@@ -13,7 +15,8 @@
 )
 
 
-def test_tab_complete_ipython6_warning(ip):
+@async_mark()
+async def test_tab_complete_ipython6_warning(ip):
     from IPython.core.completer import provisionalcompleter
 
     code = dedent(
@@ -23,7 +26,7 @@ def test_tab_complete_ipython6_warning(ip):
     rs = s.resample("D")
     """
     )
-    ip.run_code(code)
+    await ip.run_code(code)
 
     with tm.assert_produces_warning(None):
         with provisionalcompleter("ignore"):

pandas/tests/series/test_api.py

@@ -5,6 +5,8 @@
 import numpy as np
 import pytest
 
+from pandas.util._test_decorators import async_mark
+
 import pandas as pd
 from pandas import (
     Categorical,
@@ -491,13 +493,14 @@ def test_empty_method(self):
         for full_series in [pd.Series([1]), s2]:
             assert not full_series.empty
 
-    def test_tab_complete_warning(self, ip):
+    @async_mark()
+    async def test_tab_complete_warning(self, ip):
         # https://github.com/pandas-dev/pandas/issues/16409
         pytest.importorskip("IPython", minversion="6.0.0")
         from IPython.core.completer import provisionalcompleter
 
         code = "import pandas as pd; s = pd.Series()"
-        ip.run_code(code)
+        await ip.run_code(code)
         with tm.assert_produces_warning(None):
             with provisionalcompleter("ignore"):
                 list(ip.Completer.completions("s.", 1))

pandas/util/_test_decorators.py

@@ -32,6 +32,7 @@ def test_foo():
 import pytest
 
 from pandas.compat import is_platform_32bit, is_platform_windows
+from pandas.compat._optional import import_optional_dependency
 from pandas.compat.numpy import _np_version
 
 from pandas.core.computation.expressions import _NUMEXPR_INSTALLED, _USE_NUMEXPR
@@ -251,3 +252,13 @@ def new_func(*args, **kwargs):
         assert flist2 == flist
 
     return new_func
+
+
+def async_mark():
+    try:
+        import_optional_dependency("pytest_asyncio")
+        async_mark = pytest.mark.asyncio
+    except ImportError:
+        async_mark = pytest.mark.skip(reason="Missing dependency pytest-asyncio")
+
+    return async_mark

requirements-dev.txt

@@ -36,6 +36,7 @@ moto
 pytest>=5.0.1
 pytest-cov
 pytest-xdist>=1.21
+pytest-asyncio
 seaborn
 statsmodels
 ipywidgets