Do not escape valid characters in custom CSS (#863)

bookmarks/tests/test_custom_css_view.py

@@ -0,0 +1,28 @@
+from django.test import TestCase
+from django.urls import reverse
+
+from bookmarks.tests.helpers import BookmarkFactoryMixin
+
+
+class CustomCssViewTestCase(TestCase, BookmarkFactoryMixin):
+    def setUp(self) -> None:
+        user = self.get_or_create_test_user()
+        self.client.force_login(user)
+
+    def test_with_empty_css(self):
+        response = self.client.get(reverse("bookmarks:custom_css"))
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response["Content-Type"], "text/css")
+        self.assertEqual(response.headers["Cache-Control"], "public, max-age=2592000")
+        self.assertEqual(response.content.decode(), "")
+
+    def test_with_custom_css(self):
+        css = "body { background-color: red; }"
+        self.user.profile.custom_css = css
+        self.user.profile.save()
+
+        response = self.client.get(reverse("bookmarks:custom_css"))
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response["Content-Type"], "text/css")
+        self.assertEqual(response.headers["Cache-Control"], "public, max-age=2592000")
+        self.assertEqual(response.content.decode(), css)