CFTimeIndex calendar in repr

xarray/coding/cftimeindex.py

@@ -581,6 +581,12 @@ def asi8(self):
             ]
         )
 
+    @property
+    def calendar(self):
+        from .times import infer_calendar_name
+
+        return infer_calendar_name(self)
+
     def _round_via_method(self, freq, method):
         """Round dates using a specified method."""
         from .cftime_offsets import CFTIME_TICKS, to_offset

xarray/tests/test_cftimeindex.py

@@ -884,6 +884,33 @@ def test_cftimeindex_shift_invalid_freq():
         index.shift(1, 1)
 
 
+@requires_cftime
+@pytest.mark.parametrize("calendar", _CFTIME_CALENDARS)
+def test_cftimeindex_calendar_property(calendar):
+    index = xr.cftime_range(start="2000", periods=3, calendar=calendar)
+    # is this awkward here in a test?
+    if calendar == "365_day":
+        calendar = "noleap"
+    elif calendar == "366_day":
+        calendar = "all_leap"
+    assert index.calendar == calendar
+
+
+@requires_cftime
+@pytest.mark.parametrize("calendar", _CFTIME_CALENDARS)
+@pytest.mark.skip(reason="not implemented")
+def test_cftimeindex_calendar_in_repr(calendar):
+    index = xr.cftime_range(start="2000", periods=3, calendar=calendar)
+    # is this awkward here in a test?
+    repr_str = index.__repr__()
+    if calendar == "365_day":
+        calendar = "noleap"
+    elif calendar == "366_day":
+        calendar = "all_leap"
+    assert calendar in repr_str
+    assert "calendar=" in repr_str
+
+
 @requires_cftime
 def test_parse_array_of_cftime_strings():
     from cftime import DatetimeNoLeap