build(sauce/bs): make some browsers required in CI

Closes #5795

scripts/ci/build_and_test.sh

@@ -10,8 +10,10 @@ cd $SCRIPT_DIR/../..
 
 if [ "$MODE" = "dart_experimental" ]; then
   ${SCRIPT_DIR}/build_$MODE.sh
-elif [ "$MODE" = "saucelabs" ] || [ "$MODE" = "browserstack" ] ; then
-  ${SCRIPT_DIR}/test_$MODE.sh
+elif [[ $MODE = saucelabs* ]] ; then
+  ${SCRIPT_DIR}/test_saucelabs.sh $MODE
+elif [[ $MODE = browserstack* ]] ; then
+  ${SCRIPT_DIR}/test_browserstack.sh $MODE
 elif [ "$MODE" = "lint" ]; then
   ./node_modules/.bin/gulp static-checks
 elif [ "$MODE" = "build_only" ]; then

scripts/ci/test_browserstack.sh

@@ -1,6 +1,8 @@
 #!/bin/bash
 set -e
 
+MODE=$1
+
 echo =============================================================================
 # go to project dir
 SCRIPT_DIR=$(dirname $0)
@@ -9,4 +11,4 @@ cd $SCRIPT_DIR/../..
 ./scripts/browserstack/start_tunnel.sh
 ./scripts/browserstack/waitfor_tunnel.sh
 ./node_modules/.bin/gulp build.js.dev
-./node_modules/.bin/gulp test.unit.js.browserstack/ci
+./node_modules/.bin/gulp test.unit.js.browserstack/ci --mode=$MODE

scripts/ci/test_saucelabs.sh

@@ -1,6 +1,8 @@
 #!/bin/bash
 set -e
 
+MODE=$1
+
 echo =============================================================================
 # go to project dir
 SCRIPT_DIR=$(dirname $0)
@@ -9,4 +11,4 @@ cd $SCRIPT_DIR/../..
 ./scripts/sauce/sauce_connect_setup.sh
 ./scripts/sauce/sauce_connect_block.sh
 ./node_modules/.bin/gulp build.js.dev
-./node_modules/.bin/gulp test.unit.js.sauce/ci
+./node_modules/.bin/gulp test.unit.js.sauce/ci --mode=$MODE