added tests for all formatters; stylecheck workflow now also checks in tests now

tests/formatters/tests_style_formatter.py

@@ -0,0 +1,76 @@
+from unittest import TestCase
+from bs4 import BeautifulSoup
+from html_to_django.formatters.style_formatter import parse_style, style_to_string, format
+
+
+class TestParseStyle(TestCase):
+    def test_parse_style(self) -> None:
+        style = "color:red;background-color:blue;width:100px"
+        expected_result = {
+            "color": "red",
+            "background-color": "blue",
+            "width": "100px"
+        }
+        self.assertEqual(expected_result, parse_style(style))
+
+    def test_parse_style_ending_semicolon(self) -> None:
+        style = "color:red;background-color:blue;width:100px;"
+        expected_result = {
+            "color": "red",
+            "background-color": "blue",
+            "width": "100px"
+        }
+        self.assertEqual(expected_result, parse_style(style))
+
+    def test_parse_style_with_spaces(self) -> None:
+        style = "color: red ; background-color: blue ; width: 100px"
+        expected_result = {
+            "color": "red",
+            "background-color": "blue",
+            "width": "100px"
+        }
+        self.assertEqual(expected_result, parse_style(style))
+
+    def test_parse_style_empty(self) -> None:
+        style = ""
+        expected_result: dict[str, str] = {}
+        self.assertEqual(expected_result, parse_style(style))
+
+
+class TestStyleToString(TestCase):
+    def test_style_to_string(self) -> None:
+        style = {
+            "color": "red",
+            "background-color": "blue",
+            "width": "100px"
+        }
+        expected_result = "color:red;background-color:blue;width:100px;"
+        self.assertEqual(expected_result, style_to_string(style))
+
+    def test_style_to_string_with_empty_dict(self) -> None:
+        style: dict[str, str] = {}
+        expected_result = ""
+        self.assertEqual(expected_result, style_to_string(style))
+
+
+class TestFormat(TestCase):
+    def test_format(self) -> None:
+        soup = BeautifulSoup('<div dj-style="color;color;~background-color;background_color;~width;100;px"'
+                             'style="font-size:16px"></div>', "html.parser")
+        format(soup)
+        expected_result = ('<div style="font-size:16px;color:{{ color }};background-color:{{ background_color }};'
+                           'width:{{ 100 }}px;"></div>')
+        self.assertEqual(expected_result, str(soup))
+
+    def test_format_overwriting_existing_style(self) -> None:
+        soup = BeautifulSoup('<div dj-style="color;color;~width;100;px" style="color:blue;font-size:16px"></div>',
+                             "html.parser")
+        format(soup)
+        expected_result = '<div style="color:{{ color }};font-size:16px;width:{{ 100 }}px;"></div>'
+        self.assertEqual(expected_result, str(soup))
+
+    def test_format_with_no_style(self) -> None:
+        soup = BeautifulSoup('<div dj-style="color;color;~width;100;px"></div>', "html.parser")
+        format(soup)
+        expected_result = '<div style="color:{{ color }};width:{{ 100 }}px;"></div>'
+        self.assertEqual(expected_result, str(soup))