GH1089 Fix pandas nightly with new warnings on copy

tests/test_frame.py

@@ -3996,7 +3996,6 @@ def test_hashable_args() -> None:
     df.columns = ["test"]  # type: ignore[assignment]
 
     testDict = {"test": 1}
-
     with ensure_clean() as path:
         df.to_string(path, col_space=testDict)
         df.to_string(path, col_space={"test": 1})
@@ -4011,7 +4010,14 @@ def test_transpose() -> None:
     df = pd.DataFrame({"a": [1, 1, 2], "b": [4, 5, 6]})
     check(assert_type(df.transpose(), pd.DataFrame), pd.DataFrame)
     check(assert_type(df.transpose(None), pd.DataFrame), pd.DataFrame)
-    check(assert_type(df.transpose(copy=True), pd.DataFrame), pd.DataFrame)
+
+    msg = "The copy keyword is deprecated and will be removed in a future"
+    with pytest_warns_bounded(
+        DeprecationWarning,
+        msg,
+        lower="2.2.99",
+    ):
+        check(assert_type(df.transpose(copy=True), pd.DataFrame), pd.DataFrame)
 
 
 def test_combine() -> None:

tests/test_plotting.py

@@ -5,6 +5,7 @@
     Union,
 )
 
+import matplotlib as mpl
 from matplotlib.axes import Axes
 from matplotlib.figure import Figure
 import matplotlib.pyplot as plt
@@ -13,6 +14,7 @@
 import numpy.typing as npt
 import pandas as pd
 from pandas import Series
+from pandas.util.version import Version
 import pytest
 from typing_extensions import assert_type
 
@@ -577,13 +579,22 @@ def test_plot_keywords(close_figures):
     )
 
     df = pd.DataFrame(np.random.rand(10, 5), columns=["A", "B", "C", "D", "E"])
-    check(
-        assert_type(
-            df.plot(kind="box", orientation="vertical", positions=[1, 4, 5, 6, 8]),
+    if Version(mpl.__version__) >= Version("3.10.1"):
+        check(
+            assert_type(
+                df.plot(kind="box", orientation="vertical", positions=[1, 4, 5, 6, 8]),
+                Axes,
+            ),
             Axes,
-        ),
-        Axes,
-    )
+        )
+    else:
+        check(
+            assert_type(
+                df.plot(kind="box", vert=False, positions=[1, 4, 5, 6, 8]),
+                Axes,
+            ),
+            Axes,
+        )
 
 
 def test_plot_subplot_changes_150() -> None:
@@ -609,7 +620,7 @@ def test_grouped_dataframe_boxplot(close_figures):
     check(assert_type(grouped.boxplot(subplots=True), Series), Series)
 
     # a single plot
-    if not PD_LTE_22:
+    if not PD_LTE_22 and Version(mpl.__version__) >= Version("3.10.1"):
         check(
             assert_type(
                 grouped.boxplot(
@@ -654,7 +665,7 @@ def test_grouped_dataframe_boxplot_single(close_figures):
         Axes,
     )
 
-    if not PD_LTE_22:
+    if not PD_LTE_22 and Version(mpl.__version__) >= Version("3.10.1"):
         check(
             assert_type(
                 grouped.boxplot(

tests/test_series.py

@@ -3573,6 +3573,14 @@ def test_align() -> None:
     aligned_s0, aligned_s1 = s0.align(s1)
     check(assert_type(aligned_s0, pd.Series), pd.Series)
     check(assert_type(aligned_s1, pd.Series), pd.Series)
-    aligned_s0, aligned_s1 = s0.align(s1, fill_value=0, axis=0, level=0, copy=False)
+
+    msg = "The copy keyword is deprecated and will be removed in a future version.*"
+    with pytest_warns_bounded(
+        DeprecationWarning,
+        msg,
+        lower="2.2.99",
+    ):
+        aligned_s0, aligned_s1 = s0.align(s1, fill_value=0, axis=0, level=0, copy=False)
+
     check(assert_type(aligned_s0, pd.Series), pd.Series)
     check(assert_type(aligned_s1, pd.Series), pd.Series)