From 0ee44c674cf61efbca2056c40f3e4f2335aaeee6 Mon Sep 17 00:00:00 2001
From: Mariusz Felisiak <felisiak.mariusz@gmail.com>
Date: Sun, 18 Jan 2026 21:26:56 +0100
Subject: [5.2.x] Applied Black's 2026 stable style.

https://github.com/psf/black/releases/tag/26.1.0

Backport of 6cff02078799b7c683a0d39630d49ab4fe532e7c from main.
---
 .../widget_tests/test_clearablefileinput.py        | 24 +++----
 tests/forms_tests/widget_tests/test_multiwidget.py |  6 +-
 .../widget_tests/test_nullbooleanselect.py         | 60 ++++++-----------
 tests/forms_tests/widget_tests/test_select.py      | 78 ++++++++--------------
 .../widget_tests/test_selectdatewidget.py          | 30 +++------
 .../widget_tests/test_selectmultiple.py            | 60 ++++++-----------
 .../widget_tests/test_splithiddendatetimewidget.py |  6 +-
 7 files changed, 88 insertions(+), 176 deletions(-)

(limited to 'tests/forms_tests/widget_tests')

diff --git a/tests/forms_tests/widget_tests/test_clearablefileinput.py b/tests/forms_tests/widget_tests/test_clearablefileinput.py
index ae54cc4b5d..31ff1af624 100644
--- a/tests/forms_tests/widget_tests/test_clearablefileinput.py
+++ b/tests/forms_tests/widget_tests/test_clearablefileinput.py
@@ -29,14 +29,12 @@ class ClearableFileInputTest(WidgetTest):
             self.widget,
             "myfile",
             FakeFieldFile(),
-            html=(
-                """
+            html=("""
             Currently: <a href="something">something</a>
             <input type="checkbox" name="myfile-clear" id="myfile-clear_id">
             <label for="myfile-clear_id">Clear</label><br>
             Change: <input type="file" name="myfile">
-            """
-            ),
+            """),
         )
 
     def test_html_escaped(self):
@@ -55,8 +53,7 @@ class ClearableFileInputTest(WidgetTest):
             ClearableFileInput(),
             "my<div>file",
             StrangeFieldFile(),
-            html=(
-                """
+            html=("""
                 Currently:
                 <a href="something?chapter=1&amp;sect=2&amp;copy=3&amp;lang=en">
                 something&lt;div onclick=&quot;alert(&#x27;oops&#x27;)&quot;&gt;.jpg</a>
@@ -64,8 +61,7 @@ class ClearableFileInputTest(WidgetTest):
                     id="my&lt;div&gt;file-clear_id">
                 <label for="my&lt;div&gt;file-clear_id">Clear</label><br>
                 Change: <input type="file" name="my&lt;div&gt;file">
-                """
-            ),
+                """),
         )
 
     def test_clear_input_renders_only_if_not_required(self):
@@ -79,12 +75,10 @@ class ClearableFileInputTest(WidgetTest):
             widget,
             "myfile",
             FakeFieldFile(),
-            html=(
-                """
+            html=("""
             Currently: <a href="something">something</a> <br>
             Change: <input type="file" name="myfile">
-            """
-            ),
+            """),
         )
 
     def test_clear_input_renders_only_if_initial(self):
@@ -143,14 +137,12 @@ class ClearableFileInputTest(WidgetTest):
             widget,
             "myfile",
             [FakeFieldFile()],
-            html=(
-                """
+            html=("""
             Currently: <a href="something">something</a>
             <input type="checkbox" name="myfile_0-clear" id="myfile_0-clear_id">
             <label for="myfile_0-clear_id">Clear</label><br>
             Change: <input type="file" name="myfile_0">
-            """
-            ),
+            """),
         )
 
     def test_clear_input_checked_returns_false(self):
diff --git a/tests/forms_tests/widget_tests/test_multiwidget.py b/tests/forms_tests/widget_tests/test_multiwidget.py
index 40f099e625..5e360e3e92 100644
--- a/tests/forms_tests/widget_tests/test_multiwidget.py
+++ b/tests/forms_tests/widget_tests/test_multiwidget.py
@@ -273,8 +273,7 @@ class MultiWidgetTest(WidgetTest):
             widget,
             "name",
             "some text,JP,2007-04-25 06:24:00",
-            html=(
-                """
+            html=("""
             <input type="text" name="name_0" value="some text">
             <select multiple name="name_1">
                 <option value="J" selected>John</option>
@@ -284,8 +283,7 @@ class MultiWidgetTest(WidgetTest):
             </select>
             <input type="text" name="name_2_0" value="2007-04-25">
             <input type="text" name="name_2_1" value="06:24:00">
-            """
-            ),
+            """),
         )
 
     def test_no_whitespace_between_widgets(self):
diff --git a/tests/forms_tests/widget_tests/test_nullbooleanselect.py b/tests/forms_tests/widget_tests/test_nullbooleanselect.py
index 307ae56579..705ec6ce06 100644
--- a/tests/forms_tests/widget_tests/test_nullbooleanselect.py
+++ b/tests/forms_tests/widget_tests/test_nullbooleanselect.py
@@ -12,13 +12,11 @@ class NullBooleanSelectTest(WidgetTest):
             self.widget,
             "is_cool",
             True,
-            html=(
-                """<select name="is_cool">
+            html=("""<select name="is_cool">
             <option value="unknown">Unknown</option>
             <option value="true" selected>Yes</option>
             <option value="false">No</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_render_false(self):
@@ -26,13 +24,11 @@ class NullBooleanSelectTest(WidgetTest):
             self.widget,
             "is_cool",
             False,
-            html=(
-                """<select name="is_cool">
+            html=("""<select name="is_cool">
             <option value="unknown">Unknown</option>
             <option value="true">Yes</option>
             <option value="false" selected>No</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_render_none(self):
@@ -40,13 +36,11 @@ class NullBooleanSelectTest(WidgetTest):
             self.widget,
             "is_cool",
             None,
-            html=(
-                """<select name="is_cool">
+            html=("""<select name="is_cool">
             <option value="unknown" selected>Unknown</option>
             <option value="true">Yes</option>
             <option value="false">No</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_render_value_unknown(self):
@@ -54,13 +48,11 @@ class NullBooleanSelectTest(WidgetTest):
             self.widget,
             "is_cool",
             "unknown",
-            html=(
-                """<select name="is_cool">
+            html=("""<select name="is_cool">
             <option value="unknown" selected>Unknown</option>
             <option value="true">Yes</option>
             <option value="false">No</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_render_value_true(self):
@@ -68,13 +60,11 @@ class NullBooleanSelectTest(WidgetTest):
             self.widget,
             "is_cool",
             "true",
-            html=(
-                """<select name="is_cool">
+            html=("""<select name="is_cool">
             <option value="unknown">Unknown</option>
             <option value="true" selected>Yes</option>
             <option value="false">No</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_render_value_false(self):
@@ -82,13 +72,11 @@ class NullBooleanSelectTest(WidgetTest):
             self.widget,
             "is_cool",
             "false",
-            html=(
-                """<select name="is_cool">
+            html=("""<select name="is_cool">
             <option value="unknown">Unknown</option>
             <option value="true">Yes</option>
             <option value="false" selected>No</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_render_value_1(self):
@@ -96,13 +84,11 @@ class NullBooleanSelectTest(WidgetTest):
             self.widget,
             "is_cool",
             "1",
-            html=(
-                """<select name="is_cool">
+            html=("""<select name="is_cool">
             <option value="unknown" selected>Unknown</option>
             <option value="true">Yes</option>
             <option value="false">No</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_render_value_2(self):
@@ -110,13 +96,11 @@ class NullBooleanSelectTest(WidgetTest):
             self.widget,
             "is_cool",
             "2",
-            html=(
-                """<select name="is_cool">
+            html=("""<select name="is_cool">
             <option value="unknown">Unknown</option>
             <option value="true" selected>Yes</option>
             <option value="false">No</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_render_value_3(self):
@@ -124,13 +108,11 @@ class NullBooleanSelectTest(WidgetTest):
             self.widget,
             "is_cool",
             "3",
-            html=(
-                """<select name="is_cool">
+            html=("""<select name="is_cool">
             <option value="unknown">Unknown</option>
             <option value="true">Yes</option>
             <option value="false" selected>No</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_l10n(self):
@@ -144,15 +126,13 @@ class NullBooleanSelectTest(WidgetTest):
                 widget,
                 "id_bool",
                 True,
-                html=(
-                    """
+                html=("""
                 <select name="id_bool">
                     <option value="unknown">Unbekannt</option>
                     <option value="true" selected>Ja</option>
                     <option value="false">Nein</option>
                 </select>
-                """
-                ),
+                """),
             )
 
     def test_fieldset(self):
diff --git a/tests/forms_tests/widget_tests/test_select.py b/tests/forms_tests/widget_tests/test_select.py
index 6164d0b6b3..884b768086 100644
--- a/tests/forms_tests/widget_tests/test_select.py
+++ b/tests/forms_tests/widget_tests/test_select.py
@@ -31,14 +31,12 @@ class SelectTest(ChoiceWidgetTest):
             self.widget(choices=self.beatles),
             "beatle",
             None,
-            html=(
-                """<select name="beatle">
+            html=("""<select name="beatle">
             <option value="J">John</option>
             <option value="P">Paul</option>
             <option value="G">George</option>
             <option value="R">Ringo</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_render_label_value(self):
@@ -50,14 +48,12 @@ class SelectTest(ChoiceWidgetTest):
             self.widget(choices=self.beatles),
             "beatle",
             "John",
-            html=(
-                """<select name="beatle">
+            html=("""<select name="beatle">
             <option value="J">John</option>
             <option value="P">Paul</option>
             <option value="G">George</option>
             <option value="R">Ringo</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_render_selected(self):
@@ -70,15 +66,13 @@ class SelectTest(ChoiceWidgetTest):
             self.widget(choices=choices),
             "choices",
             "0",
-            html=(
-                """<select name="choices">
+            html=("""<select name="choices">
             <option value="0" selected>0</option>
             <option value="1">1</option>
             <option value="2">2</option>
             <option value="3">3</option>
             <option value="0">extra</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_constructor_attrs(self):
@@ -93,13 +87,11 @@ class SelectTest(ChoiceWidgetTest):
             widget,
             "num",
             2,
-            html=(
-                """<select name="num" class="super" id="super">
+            html=("""<select name="num" class="super" id="super">
               <option value="1">1</option>
               <option value="2" selected>2</option>
               <option value="3">3</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_compare_to_str(self):
@@ -110,37 +102,31 @@ class SelectTest(ChoiceWidgetTest):
             self.widget(choices=[("1", "1"), ("2", "2"), ("3", "3")]),
             "num",
             2,
-            html=(
-                """<select name="num">
+            html=("""<select name="num">
                 <option value="1">1</option>
                 <option value="2" selected>2</option>
                 <option value="3">3</option>
-                </select>"""
-            ),
+                </select>"""),
         )
         self.check_html(
             self.widget(choices=[(1, 1), (2, 2), (3, 3)]),
             "num",
             "2",
-            html=(
-                """<select name="num">
+            html=("""<select name="num">
                 <option value="1">1</option>
                 <option value="2" selected>2</option>
                 <option value="3">3</option>
-                </select>"""
-            ),
+                </select>"""),
         )
         self.check_html(
             self.widget(choices=[(1, 1), (2, 2), (3, 3)]),
             "num",
             2,
-            html=(
-                """<select name="num">
+            html=("""<select name="num">
                 <option value="1">1</option>
                 <option value="2" selected>2</option>
                 <option value="3">3</option>
-                </select>"""
-            ),
+                </select>"""),
         )
 
     def test_choices_constructor(self):
@@ -149,13 +135,11 @@ class SelectTest(ChoiceWidgetTest):
             widget,
             "num",
             2,
-            html=(
-                """<select name="num">
+            html=("""<select name="num">
             <option value="1">1</option>
             <option value="2" selected>2</option>
             <option value="3">3</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_choices_constructor_generator(self):
@@ -173,29 +157,25 @@ class SelectTest(ChoiceWidgetTest):
             widget,
             "num",
             2,
-            html=(
-                """<select name="num">
+            html=("""<select name="num">
             <option value="0">0</option>
             <option value="1">1</option>
             <option value="2" selected>2</option>
             <option value="3">3</option>
             <option value="4">4</option>
-            </select>"""
-            ),
+            </select>"""),
         )
         self.check_html(
             widget,
             "num",
             3,
-            html=(
-                """<select name="num">
+            html=("""<select name="num">
             <option value="0">0</option>
             <option value="1">1</option>
             <option value="2">2</option>
             <option value="3" selected>3</option>
             <option value="4">4</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_choices_escaping(self):
@@ -204,12 +184,10 @@ class SelectTest(ChoiceWidgetTest):
             self.widget(choices=choices),
             "escape",
             None,
-            html=(
-                """<select name="escape">
+            html=("""<select name="escape">
             <option value="bad">you &amp; me</option>
             <option value="good">you &gt; me</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_choices_unicode(self):
@@ -217,8 +195,7 @@ class SelectTest(ChoiceWidgetTest):
             self.widget(choices=[("ŠĐĆŽćžšđ", "ŠĐabcĆŽćžšđ"), ("ćžšđ", "abcćžšđ")]),
             "email",
             "ŠĐĆŽćžšđ",
-            html=(
-                """
+            html=("""
                 <select name="email">
                 <option value="\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111"
                     selected>
@@ -227,8 +204,7 @@ class SelectTest(ChoiceWidgetTest):
                 <option value="\u0107\u017e\u0161\u0111">abc\u0107\u017e\u0161\u0111
                 </option>
                 </select>
-                """
-            ),
+                """),
         )
 
     def test_choices_optgroup(self):
@@ -429,8 +405,7 @@ class SelectTest(ChoiceWidgetTest):
             MultiWidget([self.widget(choices=choices), TextInput()]),
             "beatle",
             ["J", "Some text"],
-            html=(
-                """
+            html=("""
                 <select name="beatle_0">
                   <option value="">------</option>
                   <option value="J" selected>John</option>
@@ -439,8 +414,7 @@ class SelectTest(ChoiceWidgetTest):
                   <option value="R">Ringo</option>
                 </select>
                 <input name="beatle_1" type="text" value="Some text">
-                """
-            ),
+                """),
         )
 
     def test_fieldset(self):
diff --git a/tests/forms_tests/widget_tests/test_selectdatewidget.py b/tests/forms_tests/widget_tests/test_selectdatewidget.py
index 017e90f5f6..b4bbd23c2a 100644
--- a/tests/forms_tests/widget_tests/test_selectdatewidget.py
+++ b/tests/forms_tests/widget_tests/test_selectdatewidget.py
@@ -32,8 +32,7 @@ class SelectDateWidgetTest(WidgetTest):
             self.widget,
             "mydate",
             "",
-            html=(
-                """
+            html=("""
             <select name="mydate_month" id="id_mydate_month">
                 <option selected value="">---</option>
                 <option value="1">January</option>
@@ -98,8 +97,7 @@ class SelectDateWidgetTest(WidgetTest):
                 <option value="2015">2015</option>
                 <option value="2016">2016</option>
             </select>
-            """
-            ),
+            """),
         )
 
     def test_render_none(self):
@@ -116,8 +114,7 @@ class SelectDateWidgetTest(WidgetTest):
             self.widget,
             "mydate",
             "2010-04-15",
-            html=(
-                """
+            html=("""
             <select name="mydate_month" id="id_mydate_month">
                 <option value="">---</option>
                 <option value="1">January</option>
@@ -182,8 +179,7 @@ class SelectDateWidgetTest(WidgetTest):
                 <option value="2015">2015</option>
                 <option value="2016">2016</option>
             </select>
-            """
-            ),
+            """),
         )
 
     def test_render_datetime(self):
@@ -200,8 +196,7 @@ class SelectDateWidgetTest(WidgetTest):
             self.widget,
             "mydate",
             "2010-02-31",
-            html=(
-                """
+            html=("""
             <select name="mydate_month" id="id_mydate_month">
                 <option value="">---</option>
                 <option value="1">January</option>
@@ -266,8 +261,7 @@ class SelectDateWidgetTest(WidgetTest):
                 <option value="2015">2015</option>
                 <option value="2016">2016</option>
             </select>
-            """
-            ),
+            """),
         )
 
     def test_custom_months(self):
@@ -276,8 +270,7 @@ class SelectDateWidgetTest(WidgetTest):
             widget,
             "mydate",
             "",
-            html=(
-                """
+            html=("""
             <select name="mydate_month" id="id_mydate_month">
                 <option selected value="">---</option>
                 <option value="1">Jan.</option>
@@ -333,8 +326,7 @@ class SelectDateWidgetTest(WidgetTest):
                 <option selected value="">---</option>
                 <option value="2013">2013</option>
             </select>
-            """
-            ),
+            """),
         )
 
     def test_selectdate_required(self):
@@ -651,8 +643,7 @@ class SelectDateWidgetTest(WidgetTest):
             widget,
             "mydate",
             "",
-            html=(
-                """
+            html=("""
             <select name="mydate_month" id="id_mydate_month">
                 <option selected value="">---</option>
                 <option value="1">January</option>
@@ -706,8 +697,7 @@ class SelectDateWidgetTest(WidgetTest):
                 <option selected value="">---</option>
                 <option value="2007">2007</option>
             </select>
-            """
-            ),
+            """),
         )
 
     def test_fieldset(self):
diff --git a/tests/forms_tests/widget_tests/test_selectmultiple.py b/tests/forms_tests/widget_tests/test_selectmultiple.py
index c4fbea4490..e3dfee426d 100644
--- a/tests/forms_tests/widget_tests/test_selectmultiple.py
+++ b/tests/forms_tests/widget_tests/test_selectmultiple.py
@@ -18,14 +18,12 @@ class SelectMultipleTest(WidgetTest):
             self.widget(choices=self.beatles),
             "beatles",
             ["J"],
-            html=(
-                """<select multiple name="beatles">
+            html=("""<select multiple name="beatles">
             <option value="J" selected>John</option>
             <option value="P">Paul</option>
             <option value="G">George</option>
             <option value="R">Ringo</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_render_multiple_selected(self):
@@ -33,14 +31,12 @@ class SelectMultipleTest(WidgetTest):
             self.widget(choices=self.beatles),
             "beatles",
             ["J", "P"],
-            html=(
-                """<select multiple name="beatles">
+            html=("""<select multiple name="beatles">
             <option value="J" selected>John</option>
             <option value="P" selected>Paul</option>
             <option value="G">George</option>
             <option value="R">Ringo</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_render_none(self):
@@ -52,15 +48,13 @@ class SelectMultipleTest(WidgetTest):
             self.widget(choices=(("", "Unknown"),) + self.beatles),
             "beatles",
             None,
-            html=(
-                """<select multiple name="beatles">
+            html=("""<select multiple name="beatles">
             <option value="">Unknown</option>
             <option value="J">John</option>
             <option value="P">Paul</option>
             <option value="G">George</option>
             <option value="R">Ringo</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_render_value_label(self):
@@ -72,14 +66,12 @@ class SelectMultipleTest(WidgetTest):
             self.widget(choices=self.beatles),
             "beatles",
             ["John"],
-            html=(
-                """<select multiple name="beatles">
+            html=("""<select multiple name="beatles">
             <option value="J">John</option>
             <option value="P">Paul</option>
             <option value="G">George</option>
             <option value="R">Ringo</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_multiple_options_same_value(self):
@@ -90,15 +82,13 @@ class SelectMultipleTest(WidgetTest):
             self.widget(choices=self.numeric_choices),
             "choices",
             ["0"],
-            html=(
-                """<select multiple name="choices">
+            html=("""<select multiple name="choices">
             <option value="0" selected>0</option>
             <option value="1">1</option>
             <option value="2">2</option>
             <option value="3">3</option>
             <option value="0" selected>extra</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_multiple_values_invalid(self):
@@ -110,14 +100,12 @@ class SelectMultipleTest(WidgetTest):
             self.widget(choices=self.beatles),
             "beatles",
             ["J", "G", "foo"],
-            html=(
-                """<select multiple name="beatles">
+            html=("""<select multiple name="beatles">
             <option value="J" selected>John</option>
             <option value="P">Paul</option>
             <option value="G" selected>George</option>
             <option value="R">Ringo</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_compare_string(self):
@@ -127,39 +115,33 @@ class SelectMultipleTest(WidgetTest):
             self.widget(choices=choices),
             "nums",
             [2],
-            html=(
-                """<select multiple name="nums">
+            html=("""<select multiple name="nums">
             <option value="1">1</option>
             <option value="2" selected>2</option>
             <option value="3">3</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
         self.check_html(
             self.widget(choices=choices),
             "nums",
             ["2"],
-            html=(
-                """<select multiple name="nums">
+            html=("""<select multiple name="nums">
             <option value="1">1</option>
             <option value="2" selected>2</option>
             <option value="3">3</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
         self.check_html(
             self.widget(choices=choices),
             "nums",
             [2],
-            html=(
-                """<select multiple name="nums">
+            html=("""<select multiple name="nums">
             <option value="1">1</option>
             <option value="2" selected>2</option>
             <option value="3">3</option>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_optgroup_select_multiple(self):
@@ -173,15 +155,13 @@ class SelectMultipleTest(WidgetTest):
             widget,
             "nestchoice",
             ["outer1", "inner2"],
-            html=(
-                """<select multiple name="nestchoice">
+            html=("""<select multiple name="nestchoice">
             <option value="outer1" selected>Outer 1</option>
             <optgroup label="Group &quot;1&quot;">
             <option value="inner1">Inner 1</option>
             <option value="inner2" selected>Inner 2</option>
             </optgroup>
-            </select>"""
-            ),
+            </select>"""),
         )
 
     def test_value_omitted_from_data(self):
diff --git a/tests/forms_tests/widget_tests/test_splithiddendatetimewidget.py b/tests/forms_tests/widget_tests/test_splithiddendatetimewidget.py
index 93ded6ac6d..1083ccc4ec 100644
--- a/tests/forms_tests/widget_tests/test_splithiddendatetimewidget.py
+++ b/tests/forms_tests/widget_tests/test_splithiddendatetimewidget.py
@@ -56,12 +56,10 @@ class SplitHiddenDateTimeWidgetTest(WidgetTest):
             self.widget,
             "date",
             d,
-            html=(
-                """
+            html=("""
             <input type="hidden" name="date_0" value="17.09.2007">
             <input type="hidden" name="date_1" value="12:51:00">
-            """
-            ),
+            """),
         )
 
     def test_constructor_different_attrs(self):
-- 
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