TST (string dtype): remove usage of arrow_string_storage fixture

pandas/conftest.py

@@ -2039,14 +2039,6 @@ def warsaw(request) -> str:
     return request.param
 
 
-@pytest.fixture
-def arrow_string_storage():
-    """
-    Fixture that lists possible PyArrow values for StringDtype storage field.
-    """
-    return ("pyarrow", "pyarrow_numpy")
-
-
 @pytest.fixture
 def temp_file(tmp_path):
     """

pandas/tests/arrays/string_/test_string.py

@@ -166,8 +166,8 @@ def test_add(dtype):
     tm.assert_series_equal(result, expected)
 
 
-def test_add_2d(dtype, request, arrow_string_storage):
-    if dtype.storage in arrow_string_storage:
+def test_add_2d(dtype, request):
+    if dtype.storage == "pyarrow":
         reason = "Failed: DID NOT RAISE <class 'ValueError'>"
         mark = pytest.mark.xfail(raises=None, reason=reason)
         request.applymarker(mark)
@@ -462,8 +462,8 @@ def test_min_max(method, skipna, dtype):
 
 @pytest.mark.parametrize("method", ["min", "max"])
 @pytest.mark.parametrize("box", [pd.Series, pd.array])
-def test_min_max_numpy(method, box, dtype, request, arrow_string_storage):
-    if dtype.storage in arrow_string_storage and box is pd.array:
+def test_min_max_numpy(method, box, dtype, request):
+    if dtype.storage == "pyarrow" and box is pd.array:
         if box is pd.array:
             reason = "'<=' not supported between instances of 'str' and 'NoneType'"
         else:
@@ -477,7 +477,7 @@ def test_min_max_numpy(method, box, dtype, request, arrow_string_storage):
     assert result == expected
 
 
-def test_fillna_args(dtype, arrow_string_storage):
+def test_fillna_args(dtype):
     # GH 37987
 
     arr = pd.array(["a", pd.NA], dtype=dtype)
@@ -490,7 +490,7 @@ def test_fillna_args(dtype, arrow_string_storage):
     expected = pd.array(["a", "b"], dtype=dtype)
     tm.assert_extension_array_equal(res, expected)
 
-    if dtype.storage in arrow_string_storage:
+    if dtype.storage == "pyarrow":
         msg = "Invalid value '1' for dtype string"
     else:
         msg = "Cannot set non-string value '1' into a StringArray."
@@ -616,10 +616,10 @@ def test_value_counts_sort_false(dtype):
     tm.assert_series_equal(result, expected)
 
 
-def test_memory_usage(dtype, arrow_string_storage):
+def test_memory_usage(dtype):
     # GH 33963
 
-    if dtype.storage in arrow_string_storage:
+    if dtype.storage == "pyarrow":
         pytest.skip(f"not applicable for {dtype.storage}")
 
     series = pd.Series(["a", "b", "c"], dtype=dtype)

pandas/tests/arrays/string_/test_string_arrow.py

@@ -48,18 +48,18 @@ def test_config_bad_storage_raises():
 
 
 @pytest.mark.parametrize("chunked", [True, False])
-@pytest.mark.parametrize("array", ["numpy", "pyarrow"])
-def test_constructor_not_string_type_raises(array, chunked, arrow_string_storage):
+@pytest.mark.parametrize("array_lib", ["numpy", "pyarrow"])
+def test_constructor_not_string_type_raises(array_lib, chunked):
     pa = pytest.importorskip("pyarrow")
 
-    array = pa if array in arrow_string_storage else np
+    array_lib = pa if array_lib == "pyarrow" else np
 
-    arr = array.array([1, 2, 3])
+    arr = array_lib.array([1, 2, 3])
     if chunked:
-        if array is np:
+        if array_lib is np:
             pytest.skip("chunked not applicable to numpy array")
         arr = pa.chunked_array(arr)
-    if array is np:
+    if array_lib is np:
         msg = "Unsupported type '<class 'numpy.ndarray'>' for ArrowExtensionArray"
     else:
         msg = re.escape(

pandas/tests/extension/test_string.py

@@ -116,22 +116,22 @@ def test_is_not_string_type(self, dtype):
         # because StringDtype is a string type
         assert is_string_dtype(dtype)
 
-    def test_view(self, data, request, arrow_string_storage):
-        if data.dtype.storage in arrow_string_storage:
+    def test_view(self, data):
+        if data.dtype.storage == "pyarrow":
             pytest.skip(reason="2D support not implemented for ArrowStringArray")
         super().test_view(data)
 
     def test_from_dtype(self, data):
         # base test uses string representation of dtype
         pass
 
-    def test_transpose(self, data, request, arrow_string_storage):
-        if data.dtype.storage in arrow_string_storage:
+    def test_transpose(self, data):
+        if data.dtype.storage == "pyarrow":
             pytest.skip(reason="2D support not implemented for ArrowStringArray")
         super().test_transpose(data)
 
-    def test_setitem_preserves_views(self, data, request, arrow_string_storage):
-        if data.dtype.storage in arrow_string_storage:
+    def test_setitem_preserves_views(self, data):
+        if data.dtype.storage == "pyarrow":
             pytest.skip(reason="2D support not implemented for ArrowStringArray")
         super().test_setitem_preserves_views(data)