test: add one sanity test

Author: andyzhangx

test/sanity/run-test.sh

@@ -37,4 +37,4 @@ _output/amd64/blobplugin --endpoint "$nodeendpoint" --nodeid "$nodeid" --enable-
 
 echo "Begin to run sanity test..."
 readonly CSI_SANITY_BIN='csi-sanity'
-"$CSI_SANITY_BIN" --ginkgo.v --csi.endpoint=$nodeendpoint --csi.controllerendpoint=$controllerendpoint -ginkgo.skip="should fail when requesting to create a volume with already existing name and different capacity|should be idempotent|should return appropriate capabilities"
+"$CSI_SANITY_BIN" --ginkgo.v --csi.endpoint=$nodeendpoint --csi.controllerendpoint=$controllerendpoint -ginkgo.skip="should fail when requesting to create a volume with already existing name and different capacity|should be idempotent"