diff --git a/vapoursynth.spec b/vapoursynth.spec
index bbdda53..a5462f8 100644
--- a/vapoursynth.spec
+++ b/vapoursynth.spec
@@ -1,10 +1,11 @@
+#global _with_tests 1
 #global _with_ffmpeg 1
 #global _with_ImageMagick 1
 
 Name:       vapoursynth
 Version:    48
-Release:    4%{?dist}
-Summary:    A video processing framework with simplicity in mind
+Release:    5%{?dist}
+Summary:    Video processing framework with simplicity in mind
 License:    LGPLv2
 URL:        http://www.vapoursynth.com
 
@@ -23,6 +24,11 @@ BuildRequires:  pkgconfig(zimg)
 BuildRequires:  python3-Cython
 BuildRequires:  python3-setuptools
 
+%{?_with_tests:
+BuildRequires:  %{name}-devel
+BuildRequires:  python3dist(pytest)
+}
+
 %{?_with_ImageMagick:
 BuildRequires:  pkgconfig(Magick++) >= 7.0
 }
@@ -35,47 +41,54 @@ BuildRequires:  pkgconfig(libavutil)
 }
 
 %description
-VapourSynth is an application for video manipulation. Or a plugin. Or a
-library. It’s hard to tell because it has a core library written in C++ and a
-Python module to allow video scripts to be created.
+VapourSynth is an application for video manipulation. Or a plugin. Or a library.
+It’s hard to tell because it has a core library written in C++ and a Python
+module to allow video scripts to be created.
 
-%package    libs
-Summary:    VapourSynth's core library with a C++ API
-Obsoletes:  lib%{name} < %{version}-%{release}
-Provides:   lib%{name} == %{version}-%{release}
 
-%description libs
+%package        libs
+Summary:        VapourSynth's core library with a C++ API
+Obsoletes:      lib%{name} < %{version}-%{release}
+Provides:       lib%{name} == %{version}-%{release}
+
+%description    libs
 VapourSynth's core library with a C++ API.
 
-%package -n python3-%{name}
-Summary:    Python interface for VapourSynth
+
+%package -n     python3-%{name}
+Summary:        Python interface for VapourSynth
 
 %description -n python3-%{name}
 Python interface for VapourSynth/VSSCript.
 
-%package devel
-Summary:    Development files for %{name}
-Requires:   %{name}-libs%{?_isa} = %{version}-%{release}
 
-%description devel
+%package        devel
+Summary:        Development files for %{name}
+Requires:       %{name}-libs%{?_isa} = %{version}-%{release}
+
+%description    devel
 Development files for %{name}.
 
-%package tools
-Summary:    Extra tools for VapourSynth
 
-%description tools
+%package        tools
+Summary:        Extra tools for VapourSynth
+
+%description    tools
 This package contains the vspipe tool for interfacing with VapourSynth.
 
-%package plugins
-Summary:    VapourSynth plugins
-Requires:   libvapoursynth%{?_isa} = %{version}-%{release}
 
-%description plugins
+%package        plugins
+Summary:        VapourSynth plugins
+Requires:       libvapoursynth%{?_isa} = %{version}-%{release}
+
+%description    plugins
 VapourSynth plugins.
 
+
 %prep
 %autosetup -p1 -n %{name}-R%{version}
 
+
 %build
 autoreconf -vif
 %configure \
@@ -97,6 +110,7 @@ autoreconf -vif
 
 %make_build
 
+
 %install
 %py3_install
 %make_install
@@ -108,6 +122,13 @@ rm -fr %{buildroot}%{_docdir}/%{name}
 %ldconfig_scriptlets libs
 %ldconfig_scriptlets -n python3-%{name}
 
+
+%{?_with_tests:
+%check
+%{python3} -m pytest -v
+}
+
+
 %files libs
 %doc ChangeLog
 %license COPYING.LGPLv2.1 ofl.txt
@@ -120,7 +141,7 @@ rm -fr %{buildroot}%{_docdir}/%{name}
 %{python3_sitearch}/VapourSynth-*.egg-info
 
 %files devel
-%{_includedir}/%{name}
+%{_includedir}/%{name}/
 %{_libdir}/lib%{name}.so
 %{_libdir}/lib%{name}-script.so
 %{_libdir}/pkgconfig/%{name}.pc
@@ -132,7 +153,12 @@ rm -fr %{buildroot}%{_docdir}/%{name}
 %files plugins
 %{_libdir}/%{name}/lib*.so
 
+
 %changelog
+* Tue Feb 25 2020 Artem Polishchuk <ego.cordatus@gmail.com> - 48-5
+- Add tests
+- Cosmetic spec file improvements
+
 * Thu Feb 20 2020 Simone Caronni <negativo17@gmail.com> - 48-4
 - More review fixes.
 - Use upstream patch for Python 3.8.