diff --git a/build.spec b/build.spec
index 29a07c09..fae19c85 100644
--- a/build.spec
+++ b/build.spec
@@ -50,11 +50,13 @@ BuildRequires:  tar
 %if 0%{?fedora}
 Requires:       perl-MD5
 Requires:       perl-TimeDate
+BuildRequires:  perl-TimeDate
 %endif
 Conflicts:      bsdtar < 2.5.5
 %if 0%{?suse_version} > 1000
 # None of them are actually required for core features.
 # Perl helper scripts use them.
+BuildRequires:  perl(Date::Parse)
 Recommends:     perl(Date::Language)
 Recommends:     perl(Date::Parse)
 Recommends:     perl(LWP::UserAgent)
@@ -199,12 +201,16 @@ test -e baselibs_global.conf || exit 1
 
 %check
 for i in build build-* ; do bash -n $i || exit 1 ; done
+
+# expect unit tests
+LANG=C prove -I. -v t/*.t
+
 if [ `whoami` != "root" ]; then
-  echo "WARNING: Not building as root, tests did not run!"
+  echo "WARNING: Not building as root, build test did not run!"
   exit 0
 fi
 if [ ! -f "%{buildroot}/usr/lib/build/configs/default.conf" ]; then
-  echo "WARNING: No default config, tests did not run!"
+  echo "WARNING: No default config, build test did not run!"
   exit 0
 fi
 # get back the default.conf link
@@ -213,6 +219,8 @@ cp -av %{buildroot}/usr/lib/build/configs/default.conf configs/
 export BUILD_IGNORE_2ND_STAGE=1
 # use our own build code
 export BUILD_DIR=$PWD
+
+# simple chroot build test
 cd test
 # target is autodetected
 %if 0%{?sles_version}