✅ Test DataFrame.append with other dtypes

Author: Marco Gorelli

pandas/tests/frame/methods/test_append.py

@@ -177,3 +177,19 @@ def test_append_timestamps_aware_or_naive(self, tz_naive_fixture, timestamp):
         result = df.append(df.iloc[0]).iloc[-1]
         expected = pd.Series(pd.Timestamp(timestamp, tz=tz), name=0)
         tm.assert_series_equal(result, expected)
+
+    @pytest.mark.parametrize(
+        "data, dtype",
+        [
+            ([1], pd.Int64Dtype()),
+            ([1], pd.CategoricalDtype()),
+            ([pd.Interval(left=0, right=5)], pd.IntervalDtype()),
+            ([pd.Period("2000-03", freq="M")], pd.PeriodDtype("M")),
+            ([1], pd.SparseDtype()),
+        ],
+    )
+    def test_other_dtypes(self, data, dtype):
+        df = pd.DataFrame(data, dtype=dtype)
+        result = df.append(df.iloc[0]).iloc[-1]
+        expected = pd.Series(data, name=0, dtype=dtype)
+        tm.assert_series_equal(result, expected)