Updated Test cases

Author: eicchen

pandas/tests/plotting/test_misc.py

@@ -683,8 +683,17 @@ def test_bar_plt_xaxis_intervalrange(self):
         )
 
 
+def test_plot_bar_label_count_default():
+    df = DataFrame(
+        [(30, 10, 10, 10), (20, 20, 20, 20), (10, 30, 30, 10)], columns=list("ABCD")
+    )
+    df.plot(subplots=True, kind="bar", title=["A", "B", "C", "D"])
+
+
 def test_plot_bar_label_count_expected_fail():
-    df = DataFrame([(30, 10, 10), (20, 20, 20), (10, 30, 30)], columns=list("ABC"))
+    df = DataFrame(
+        [(30, 10, 10, 10), (20, 20, 20, 20), (10, 30, 30, 10)], columns=list("ABCD")
+    )
     with pytest.raises(
         ValueError,
         match="The length of `title` must equal the number of columns "
@@ -693,11 +702,12 @@ def test_plot_bar_label_count_expected_fail():
         df.plot(
             subplots=[("A", "B")],
             kind="bar",
-            stacked=True,
-            title=["A&B", "C", "Extra Title"],
+            title=["A&B", "C", "D", "Extra Title"],
         )
 
 
 def test_plot_bar_label_count_expected_success():
-    df = DataFrame([(30, 10, 10), (20, 20, 20), (10, 30, 30)], columns=list("ABC"))
-    df.plot(subplots=[("A", "B")], kind="bar", stacked=True, title=["A&B", "C"])
+    df = DataFrame(
+        [(30, 10, 10, 10), (20, 20, 20, 20), (10, 30, 30, 10)], columns=list("ABCD")
+    )
+    df.plot(subplots=[("A", "B", "D")], kind="bar", title=["A&B&D", "C"])