disable saucelab test if travis enviorment vars are not available

Author: wti806

buildtools/run_tests.sh

@@ -71,11 +71,14 @@ trap killServer EXIT
 # If --saucelabs option is passed, forward it to the protractor command adding
 # the second argument that is required for local SauceLabs test run.
 if [[ $1 = "--saucelabs" ]]; then
-  seleniumStarted=false
-  sleep 2
-  echo "Using SauceLabs."
-  # $2 contains the tunnelIdentifier argument if specified, otherwise is empty.
-  $PROTRACTOR_BIN_PATH/protractor protractor.conf.js --saucelabs $2
+  # Enable saucelabs tests only when running locally or when Travis enviroment vars are accessible. 
+  if [[ ( "$TRAVIS" = true  &&  "$TRAVIS_SECURE_ENV_VARS" = true ) || ( -z "$TRAVIS" ) ]]; then
+    seleniumStarted=false
+    sleep 2
+    echo "Using SauceLabs."
+    # $2 contains the tunnelIdentifier argument if specified, otherwise is empty.
+    $PROTRACTOR_BIN_PATH/protractor protractor.conf.js --saucelabs $2
+  fi
 else
   echo "Using Headless Chrome."
   # Updates Selenium Webdriver.