Update test_deprecate_nonkeyword_arguments.py

Use assert_produces_warning(None) context to check whether no warnings are produced.

Author: alexitkes

pandas/tests/util/test_deprecate_nonkeyword_arguments.py

@@ -16,12 +16,13 @@ def f(a, b=0, c=0, d=0):
     return a + b + c + d
 
 
-def test_one_arguments():
+def test_one_argument():
     """
     Check whether no future warning is produced if one
     positional argument given.
     """
-    assert f(19) == 19
+    with tm.assert_produces_warning(None):
+        assert f(19) == 19
 
 
 def test_one_and_one_arguments():
@@ -30,15 +31,17 @@ def test_one_and_one_arguments():
     positional argument and one keyword argument are
     given.
     """
-    assert f(19, d=6) == 25
+    with tm.assert_produces_warning(None):
+        assert f(19, d=6) == 25
 
 
 def test_two_arguments():
     """
     Check whether no future warning is produced if two
     positional arguments given.
     """
-    assert f(1, 5) == 6
+    with tm.assert_produces_warning(None):
+        assert f(1, 5) == 6
 
 
 def test_two_and_two_arguments():
@@ -47,7 +50,8 @@ def test_two_and_two_arguments():
     positional arguments and two keyword arguments are
     given.
     """
-    assert f(1, 3, c=3, d=5) == 12
+    with tm.assert_produces_warning(None):
+        assert f(1, 3, c=3, d=5) == 12
 
 
 def test_three_arguments():
@@ -74,7 +78,8 @@ def g(a, b=0, c=0, d=0):
     Sum of one to four numbers, but three of them have default
     values, so may be given as keyword arguments only.
     """
-    return a + b + c + d
+    with tm.assert_produces_warning(None):
+        return a + b + c + d
 
 
 def test_one_and_three_arguments_default_allowed_args():
@@ -85,7 +90,8 @@ def test_one_and_three_arguments_default_allowed_args():
     option, meaning that all arguments with default value
     are keyword-only.
     """
-    assert g(1, b=3, c=3, d=5) == 12
+    with tm.assert_produces_warning(None):
+        assert g(1, b=3, c=3, d=5) == 12
 
 
 def test_three_arguments_default_allowed_args():