TST: GH38947 creating function to test bar plot index

Author: Daquisu

pandas/tests/plotting/test_misc.py

@@ -7,6 +7,7 @@
 
 from pandas import (
     DataFrame,
+    Index,
     Series,
     Timestamp,
 )
@@ -441,6 +442,29 @@ def test_dictionary_color(self):
         colors = [rect.get_color() for rect in ax.get_lines()[0:2]]
         assert all(color == expected[index] for index, color in enumerate(colors))
 
+    def test_bar_plot(self):
+        # GH38947
+        # Test bar plot with string and int index
+        from matplotlib.text import Text
+
+        expected = [Text(0, 0, "0"), Text(1, 0, "Total")]
+
+        df = DataFrame(
+            {
+                "a": [1, 2],
+            },
+            index=Index([0, "Total"]),
+        )
+
+        try:
+            plot_bar = df.plot.bar()
+            assert all(
+                (a.get_text() == b.get_text())
+                for a, b in zip(plot_bar.get_xticklabels(), expected)
+            )
+        except TypeError:
+            assert False
+
     def test_has_externally_shared_axis_x_axis(self):
         # GH33819
         # Test _has_externally_shared_axis() works for x-axis