diff --git a/python-blockdiag.changes b/python-blockdiag.changes
index 6de5c56..238647d 100644
--- a/python-blockdiag.changes
+++ b/python-blockdiag.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Mon Aug 30 13:34:57 UTC 2021 - pgajdos@suse.com
+
+- %check: test the package
+
 -------------------------------------------------------------------
 Mon Feb 24 02:11:52 UTC 2020 - Steve Kowalik <steven.kowalik@suse.com>
 
diff --git a/python-blockdiag.spec b/python-blockdiag.spec
index 6203924..9841240 100644
--- a/python-blockdiag.spec
+++ b/python-blockdiag.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package python-blockdiag
 #
-# Copyright (c) 2020 SUSE LLC
+# Copyright (c) 2021 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -17,8 +17,6 @@
 
 
 %{?!python_module:%define python_module() python-%{**} python3-%{**}}
-# tests need network connection
-%bcond_with tests
 %define skip_python2 1
 Name:           python-blockdiag
 Version:        2.0.1
@@ -39,15 +37,14 @@ Requires:       python-Pillow >= 2.2.1
 Requires:       python-funcparserlib >= 0.3.6
 Requires:       python-webcolors
 Requires(post): update-alternatives
-Requires(preun): update-alternatives
+Requires(preun):update-alternatives
 BuildArch:      noarch
-%if %{with tests}
+# SECTION test requirements
 BuildRequires:  %{python_module docutils}
-BuildRequires:  %{python_module mock}
-BuildRequires:  %{python_module nose}
 BuildRequires:  %{python_module pep8 >= 1.3}
 BuildRequires:  %{python_module pip >= 1.4.1}
-%endif
+BuildRequires:  %{python_module pytest}
+# /SECTION
 %if 0%{?suse_version} >= 1000 || 0%{?fedora_version} >= 24
 Recommends:     ghostscript
 Recommends:     python-Wand
@@ -57,7 +54,6 @@ Recommends:     python-reportlab
 
 %description
 The blockdiag package generates block-diagram image files
-from spec-text files.
 
 %prep
 %setup -q -n blockdiag-%{version}
@@ -76,10 +72,16 @@ from spec-text files.
 %preun
 %python_uninstall_alternative blockdiag
 
-%if %{with tests}
 %check
-%python_exec setup.py test
-%endif
+pushd src
+# this only test requires nose
+rm blockdiag/tests/test_generate_diagram.py
+# other disabled tests:
+# [    9s] WARNING: Could not retrieve: http://blockdiag.com/favicon.ico
+# [    9s] WARNING: Could not retrieve: http://upload.wikimedia.org/wikipedia/commons/9/9b/Scalable_Vector_Graphics_Circle2.svg
+# [    9s] WARNING: Could not retrieve: http://people.sc.fsu.edu/~jburkardt/data/eps/circle.eps
+%pytest -k 'not (test_app_cleans_up_images or test_node_attribute or test_setup_inline_svg_is_true_with_multibytes)'
+popd
 
 %files %{python_files}
 %license LICENSE