Add integration test framework

Signed-off-by: Lantao Liu <lantaol@google.com>

hack/test-cri.sh

@@ -22,6 +22,7 @@ source $(dirname "${BASH_SOURCE[0]}")/test-utils.sh
 FOCUS=${FOCUS:-}
 # SKIP skips the test to skip.
 SKIP=${SKIP:-""}
+# REPORT_DIR is the the directory to store test logs.
 REPORT_DIR=${REPORT_DIR:-"/tmp/test-cri"}
 
 # Check GOPATH
@@ -35,7 +36,6 @@ GOPATH=${GOPATH%%:*}
 
 CRITEST=${GOPATH}/bin/critest
 CRITOOL_PKG=github.com/kubernetes-incubator/cri-tools
-CRICONTAINERD_SOCK=/var/run/cri-containerd.sock
 
 # Install critest
 if [ ! -x "$(command -v ${CRITEST})" ]; then
@@ -48,12 +48,12 @@ fi
 which ${CRITEST}
 
 mkdir -p ${REPORT_DIR}
-start_cri_containerd ${REPORT_DIR}
+test_setup ${REPORT_DIR}
 
 # Run cri validation test
 sudo env PATH=${PATH} GOPATH=${GOPATH} ${CRITEST} --runtime-endpoint=${CRICONTAINERD_SOCK} --focus="${FOCUS}" --ginkgo-flags="--skip=\"${SKIP}\"" validation
 test_exit_code=$?
 
-kill_cri_containerd
+test_teardown
 
 exit ${test_exit_code}