report auth test failures (#1770)

* report auth test failures

* use firefox 66.0

Author: Feiyang1

.travis.yml

@@ -27,6 +27,7 @@ before_script:
 dist: trusty
 sudo: required
 addons:
+  firefox: "66.0"
   apt:
     sources:
       - google-chrome

packages/auth/buildtools/run_tests.sh

@@ -62,6 +62,10 @@ function evalModule {
   do
     if [ -f "$basedir/$1" ]; then
       eval "$basedir/$1 ${@:2}"
+      ret=$?
+      if [ $ret -ne 0 ]; then
+        exit $ret
+      fi    
       break
     fi
   done