Use a GitHub tarball as a source to get requirements/tests.in

.gitignore

@@ -8,3 +8,4 @@ MarkupSafe-0.9.2.tar.gz
 /MarkupSafe-2.0.0.tar.gz
 /MarkupSafe-2.1.1.tar.gz
 /MarkupSafe-2.1.2.tar.gz
+/markupsafe-2.1.2.tar.gz

python-markupsafe.spec

@@ -4,15 +4,11 @@ Release:        1%{?dist}
 Summary:        Implements a XML/HTML/XHTML Markup safe string for Python
 License:        BSD
 URL:            https://palletsprojects.com/p/markupsafe/
-Source:         %pypi_source MarkupSafe
+Source:         https://github.com/pallets/markupsafe/archive/%{version}/markupsafe-%{version}.tar.gz
 
 BuildRequires:  gcc
 BuildRequires:  python3-devel
 
-# This dependency is listed in requirements/tests.in but that file is not in the sdist
-# requirements/tests.txt pins exact versions of dependencies, so we rather list it manually:
-BuildRequires:  python3-pytest
-
 %description
 A library for safe markup escaping.
 
@@ -25,13 +21,13 @@ A library for safe markup escaping. Python 3 version.
 
 
 %prep
-%autosetup -n MarkupSafe-%{version}
+%autosetup -n markupsafe-%{version}
 # Exclude C source from the package:
 echo 'global-exclude *.c' >> MANIFEST.in
 
 
 %generate_buildrequires
-%pyproject_buildrequires
+%pyproject_buildrequires requirements/tests.in
 
 
 %build

sources

@@ -1 +1 @@
-SHA512 (MarkupSafe-2.1.2.tar.gz) = 84dbeddaf2df713b3cce94eb64876fea8f80c608e25130c18e4691be2b1dea56df8b772d26c0caca88231ef795125eb9678210c33bf20518c18e3047912ddb4b
+SHA512 (markupsafe-2.1.2.tar.gz) = 0e66a99ed99b356d7492e86e428d478ee677cbfbe41bdc8c5652341c1b394e34332d73ff9712d0ad933e87ecc5ab6d47fbcdaf0a3412c502fc979c6163a07917