done

lib/python3.11/site-packages/pandas/tests/frame/test_alter_axes.py

@@ -0,0 +1,30 @@
+from datetime import datetime
+
+import pytz
+
+from pandas import DataFrame
+import pandas._testing as tm
+
+
+class TestDataFrameAlterAxes:
+    # Tests for setting index/columns attributes directly (i.e. __setattr__)
+
+    def test_set_axis_setattr_index(self):
+        # GH 6785
+        # set the index manually
+
+        df = DataFrame([{"ts": datetime(2014, 4, 1, tzinfo=pytz.utc), "foo": 1}])
+        expected = df.set_index("ts")
+        df.index = df["ts"]
+        df.pop("ts")
+        tm.assert_frame_equal(df, expected)
+
+    # Renaming
+
+    def test_assign_columns(self, float_frame):
+        float_frame["hi"] = "there"
+
+        df = float_frame.copy()
+        df.columns = ["foo", "bar", "baz", "quux", "foo2"]
+        tm.assert_series_equal(float_frame["C"], df["baz"], check_names=False)
+        tm.assert_series_equal(float_frame["hi"], df["foo2"], check_names=False)