simplify test

xarray/tests/test_cftimeindex.py

@@ -988,9 +988,10 @@ def test_cftimeindex_calendar_property(calendar, expected):
     assert index.calendar == expected
 
 
+@requires_cftime
 def test_cftime_noleap_with_str():
     # https://github.com/pydata/xarray/issues/9138
-    time = xr.cftime_range("2000-01-01", "2006-01-01", freq="D", calendar="noleap")
+    time = pd.date_range("2000-01-01", "2006-01-01", freq="D")
     temperature = np.ones(len(time))
     da = xr.DataArray(
         data=temperature,
@@ -999,30 +1000,8 @@ def test_cftime_noleap_with_str():
             time=time,
         ),
     )
-    # works if array is built with cftime
-    out = da.sel(time=slice("2001", "2002"))
-    da1 = da.convert_calendar("noleap")
-    # works if array is built with cftime and converted
-    out1 = da1.sel(time=slice("2001", "2002"))
-
-    time = pd.date_range(
-        "2000-01-01",
-        "2006-01-01",
-        freq="D",
-    )
-    temperature = np.ones(len(time))
-    da2 = xr.DataArray(
-        data=temperature,
-        dims=["time"],
-        coords=dict(
-            time=time,
-        ),
-    )
-    # works if array is built with pandas time
-    out2 = da2.sel(time=slice("2001", "2002"))
-    da3 = da2.convert_calendar("noleap")
-    # fails if array is built with pandas time and convert to noleap
-    out3 = da3.sel(time=slice("2001", "2002"))
+    da_noleap = da.convert_calendar("noleap")
+    da_noleap.sel(time=slice("2001", "2002"))
 
 
 @requires_cftime