travis: enable tests

Signed-off-by: U. Artie Eoff <ullysses.a.eoff@intel.com>
diff --git a/.travis.yml b/.travis.yml
index 06568f9..0234b7b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -46,7 +46,7 @@
       name: "01org/libva-utils"
       description: "Build submitted via Travis CI"
     notification_email: intel-media-security@lists.01.org 
-    build_command_prepend: "./autogen.sh; ./configure --prefix=/usr"
+    build_command_prepend: "./autogen.sh; ./configure --prefix=/usr --enable-tests"
     build_command:   "make -j4"
     branch_pattern: coverity_scan
 
@@ -57,7 +57,7 @@
         exit 0;
     fi
   - ./autogen.sh
-  - ./configure --prefix=/usr
+  - ./configure --prefix=/usr --enable-tests
   - make -j4 ; sudo make install
   - make check