test: add test vender

Signed-off-by: qiuming520 <[email protected]>

Author: qiuming520

go.mod

@@ -26,6 +26,7 @@ require (
 	github.com/spf13/cobra v1.6.0
 	github.com/spf13/pflag v1.0.5
 	github.com/spf13/viper v1.12.0
+	github.com/stretchr/testify v1.8.1
 	github.com/vishvananda/netlink v1.2.1-beta.2.0.20220630165224-c591ada0fb2b
 	golang.org/x/sys v0.12.0
 	golang.org/x/term v0.12.0
@@ -139,6 +140,7 @@ require (
 	github.com/pelletier/go-toml v1.9.5 // indirect
 	github.com/pelletier/go-toml/v2 v2.0.1 // indirect
 	github.com/peterbourgon/diskv v2.0.1+incompatible // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/projectcalico/go-json v0.0.0-20161128004156-6219dc7339ba // indirect
 	github.com/projectcalico/go-yaml-wrapper v0.0.0-20191112210931-090425220c54 // indirect
 	github.com/prometheus/client_golang v1.14.0 // indirect