Test for working connection with InCommon cert chain

tests/base.bats

@@ -1,6 +1,8 @@
 #!/usr/bin/env bats
 
 @test "curl should connect to InCommon cert chain site successfully" {
-  run "docker run -it tier/centos7base curl https://github.internet2.edu/"
+  run docker run -it tier/centos7base curl -o /dev/null --silent --head --write-out '%{http_code}\n' https://github.internet2.edu/
+  echo ${output}
   [ "$status" -eq 0 ]
-}
+  [[ ${output} == *"302"* || ${output} == *"200"* ]]
+}