Try to parallelize the tests

Otherwise they take *forever*.

sympy.spec

@@ -30,6 +30,7 @@ BuildRequires:  tex(latex)
 BuildRequires:  tex-dvipng
 BuildRequires:  xorg-x11-fonts-Type1
 BuildRequires:  xorg-x11-server-Xvfb
+BuildRequires:  parallel
 
 Requires:       mesa-libGLU
 Requires:       python2-fastcache
@@ -183,11 +184,21 @@ popd
 
 %check
 let "dnum = $RANDOM % 90 + 10"
+# Split into many small chunks to reduce waiting in the end-game
+jobs=%{?_smp_mflags}; jobs=${jobs#-j}; jobs=$((jobs * 3))
+
 pushd %{sympydir}
-xvfb-run -a -n $dnum python2 setup.py test
+xvfb-run -a -n $dnum \
+    parallel %{?_smp_mflags} \
+    %{__python2} bin/test -v --split {}/$jobs \
+    ::: $(bash -c "echo {1..$jobs}")
 popd
+
 pushd python3
-xvfb-run -a -n $dnum python3 setup.py test
+xvfb-run -a -n $dnum \
+    parallel %{?_smp_mflags} \
+    %{__python3} bin/test -v --split {}/$jobs \
+    ::: $(bash -c "echo {1..$jobs}")
 popd
  
 %files
@@ -221,6 +232,9 @@ popd
 %{_docdir}/%{name}-doc/html
 
 %changelog
+* Fri Jan 13 2017 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 1.0-4
+- Run tests in parallel
+
 * Thu Dec 22 2016 Miro Hrončok <mhroncok@redhat.com> - 1.0-4
 - Rebuild for Python 3.6