Merge pull request #181 from andyzhangx/sanity-test-v4.0.2

 test: upgrade sanity-test to v4.0.2

Author: andyzhangx

test/sanity/run-test.sh

@@ -29,7 +29,7 @@ function install_csi_sanity_bin {
   mkdir -p $GOPATH/src/github.com/kubernetes-csi
   pushd $GOPATH/src/github.com/kubernetes-csi
   export GO111MODULE=off
-  git clone https://github.com/kubernetes-csi/csi-test.git -b v2.2.0
+  git clone https://github.com/kubernetes-csi/csi-test.git -b v4.0.2
   pushd csi-test/cmd/csi-sanity
   make install
   popd
@@ -50,4 +50,4 @@ _output/smbplugin --endpoint "$endpoint" --nodeid "$nodeid" -v=5 &
 
 echo 'Begin to run sanity test...'
 readonly CSI_SANITY_BIN='csi-sanity'
-"$CSI_SANITY_BIN" --ginkgo.v --ginkgo.noColor --csi.endpoint="$endpoint" --ginkgo.skip='should fail when the requested volume does not exist|should work|create a volume with already existing name and different capacity'
+"$CSI_SANITY_BIN" --ginkgo.v --ginkgo.noColor --csi.endpoint="$endpoint" --ginkgo.skip='should fail when the requested volume does not exist|should work|create a volume with already existing name and different capacity|should be idempotent'