diff --git a/cmd/init.go b/cmd/init.go
index 10060a3..d7fe906 100644
--- a/cmd/init.go
+++ b/cmd/init.go
@@ -11,13 +11,14 @@ type initOption struct {
 	waitResource  string
 }
 
-// CreateInitCommand returns the init command
-func CreateInitCommand() (cmd *cobra.Command) {
+// createInitCommand returns the init command
+func createInitCommand() (cmd *cobra.Command) {
 	opt := &initOption{}
 	cmd = &cobra.Command{
-		Use:  "init",
-		Long: "Support to init Kubernetes cluster with kustomization, and wait it with command: kubectl wait",
-		RunE: opt.runE,
+		Use:    "init",
+		Long:   "Support to init Kubernetes cluster with kustomization, and wait it with command: kubectl wait",
+		Hidden: true,
+		RunE:   opt.runE,
 	}
 
 	flags := cmd.Flags()
diff --git a/cmd/root.go b/cmd/root.go
new file mode 100644
index 0000000..a4fde2d
--- /dev/null
+++ b/cmd/root.go
@@ -0,0 +1,14 @@
+package cmd
+
+import "github.com/spf13/cobra"
+
+// NewRootCmd creates the root command
+func NewRootCmd() (c *cobra.Command) {
+	c = &cobra.Command{
+		Use:   "atest",
+		Short: "API testing tool",
+	}
+	c.AddCommand(createInitCommand(),
+		createRunCommand(), createSampleCmd())
+	return
+}
diff --git a/cmd/root_test.go b/cmd/root_test.go
index 5b54cf4..341ac8b 100644
--- a/cmd/root_test.go
+++ b/cmd/root_test.go
@@ -40,9 +40,9 @@ func Test_setRelativeDir(t *testing.T) {
 }
 
 func TestCreateRunCommand(t *testing.T) {
-	cmd := CreateRunCommand()
+	cmd := createRunCommand()
 	assert.Equal(t, "run", cmd.Use)
 
-	init := CreateInitCommand()
+	init := createInitCommand()
 	assert.Equal(t, "init", init.Use)
 }
diff --git a/cmd/run.go b/cmd/run.go
index 4459c09..cbf5871 100644
--- a/cmd/run.go
+++ b/cmd/run.go
@@ -48,8 +48,8 @@ func newDiskCardRunOption() *runOption {
 	}
 }
 
-// CreateRunCommand returns the run command
-func CreateRunCommand() (cmd *cobra.Command) {
+// createRunCommand returns the run command
+func createRunCommand() (cmd *cobra.Command) {
 	opt := newDefaultRunOption()
 	cmd = &cobra.Command{
 		Use:     "run",
diff --git a/cmd/run_test.go b/cmd/run_test.go
index 8779758..25226f6 100644
--- a/cmd/run_test.go
+++ b/cmd/run_test.go
@@ -92,7 +92,7 @@ func TestRunCommand(t *testing.T) {
 			tt.prepare()
 
 			root := &cobra.Command{Use: "root"}
-			root.AddCommand(CreateRunCommand())
+			root.AddCommand(createRunCommand())
 
 			root.SetArgs(append([]string{"run"}, tt.args...))
 
@@ -101,3 +101,9 @@ func TestRunCommand(t *testing.T) {
 		})
 	}
 }
+
+func TestRootCmd(t *testing.T) {
+	c := NewRootCmd()
+	assert.NotNil(t, c)
+	assert.Equal(t, "atest", c.Use)
+}
diff --git a/cmd/sample.go b/cmd/sample.go
new file mode 100644
index 0000000..18948d1
--- /dev/null
+++ b/cmd/sample.go
@@ -0,0 +1,18 @@
+package cmd
+
+import (
+	"github.com/linuxsuren/api-testing/sample"
+	"github.com/spf13/cobra"
+)
+
+func createSampleCmd() (c *cobra.Command) {
+	c = &cobra.Command{
+		Use:   "sample",
+		Short: "Generate a sample test case YAML file",
+		RunE: func(cmd *cobra.Command, args []string) (err error) {
+			cmd.Println(sample.TestSuiteGitLab)
+			return
+		},
+	}
+	return
+}
diff --git a/cmd/sample_test.go b/cmd/sample_test.go
new file mode 100644
index 0000000..8f0a345
--- /dev/null
+++ b/cmd/sample_test.go
@@ -0,0 +1,22 @@
+package cmd_test
+
+import (
+	"bytes"
+	"testing"
+
+	"github.com/linuxsuren/api-testing/cmd"
+	"github.com/linuxsuren/api-testing/sample"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestSampleCmd(t *testing.T) {
+	c := cmd.NewRootCmd()
+
+	buf := new(bytes.Buffer)
+	c.SetOut(buf)
+
+	c.SetArgs([]string{"sample"})
+	err := c.Execute()
+	assert.Nil(t, err)
+	assert.Equal(t, sample.TestSuiteGitLab+"\n", buf.String())
+}
diff --git a/go.mod b/go.mod
index 52b92ac..1ebd3b8 100644
--- a/go.mod
+++ b/go.mod
@@ -8,8 +8,9 @@ require (
 	github.com/antonmedv/expr v1.12.1
 	github.com/h2non/gock v1.2.0
 	github.com/linuxsuren/unstructured v0.0.1
-	github.com/spf13/cobra v1.4.0
+	github.com/spf13/cobra v1.6.1
 	github.com/stretchr/testify v1.8.2
+	golang.org/x/sync v0.1.0
 	gopkg.in/yaml.v2 v2.4.0
 )
 
@@ -21,7 +22,7 @@ require (
 	github.com/h2non/parth v0.0.0-20190131123155-b4df798d6542 // indirect
 	github.com/huandu/xstrings v1.3.3 // indirect
 	github.com/imdario/mergo v0.3.11 // indirect
-	github.com/inconshreveable/mousetrap v1.0.0 // indirect
+	github.com/inconshreveable/mousetrap v1.0.1 // indirect
 	github.com/mitchellh/copystructure v1.0.0 // indirect
 	github.com/mitchellh/reflectwalk v1.0.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
@@ -30,6 +31,5 @@ require (
 	github.com/spf13/cast v1.3.1 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	golang.org/x/crypto v0.3.0 // indirect
-	golang.org/x/sync v0.1.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
diff --git a/go.sum b/go.sum
index 3b99749..a0925ae 100644
--- a/go.sum
+++ b/go.sum
@@ -8,7 +8,7 @@ github.com/andreyvit/diff v0.0.0-20170406064948-c7f18ee00883 h1:bvNMNQO63//z+xNg
 github.com/andreyvit/diff v0.0.0-20170406064948-c7f18ee00883/go.mod h1:rCTlJbsFo29Kk6CurOXKm700vrz8f0KW0JNfpkRJY/8=
 github.com/antonmedv/expr v1.12.1 h1:GTGrGN1kxxb+le0uQKaFRK8By4cvq1sleUCGE/U6hHg=
 github.com/antonmedv/expr v1.12.1/go.mod h1:FPC8iWArxls7axbVLsW+kpg1mz29A1b2M6jt+hZfDkU=
-github.com/cpuguy83/go-md2man/v2 v2.0.1/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -22,8 +22,8 @@ github.com/huandu/xstrings v1.3.3 h1:/Gcsuc1x8JVbJ9/rlye4xZnVAbEkGauT8lbebqcQws4
 github.com/huandu/xstrings v1.3.3/go.mod h1:y5/lhBue+AyNmUVz9RLU9xbLR0o4KIIExikq4ovT0aE=
 github.com/imdario/mergo v0.3.11 h1:3tnifQM4i+fbajXKBHXWEH+KvNHqojZ778UH75j3bGA=
 github.com/imdario/mergo v0.3.11/go.mod h1:jmQim1M+e3UYxmgPu/WyfjB3N3VflVyUjjjwH0dnCYA=
-github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
-github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
+github.com/inconshreveable/mousetrap v1.0.1 h1:U3uMjPSQEBMNp1lFxmllqCPM6P5u/Xq7Pgzkat/bFNc=
+github.com/inconshreveable/mousetrap v1.0.1/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
@@ -46,8 +46,8 @@ github.com/shopspring/decimal v1.2.0 h1:abSATXmQEYyShuxI4/vyW3tV1MrKAJzCZ/0zLUXY
 github.com/shopspring/decimal v1.2.0/go.mod h1:DKyhrW/HYNuLGql+MJL6WCR6knT2jwCFRcu2hWCYk4o=
 github.com/spf13/cast v1.3.1 h1:nFm6S0SMdyzrzcmThSipiEubIDy8WEXKNZ0UOgiRpng=
 github.com/spf13/cast v1.3.1/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=
-github.com/spf13/cobra v1.4.0 h1:y+wJpx64xcgO1V+RcnwW0LEHxTKRi2ZDPSBjWnrg88Q=
-github.com/spf13/cobra v1.4.0/go.mod h1:Wo4iy3BUC+X2Fybo0PDqwJIv3dNRiZLHQymsfxlB84g=
+github.com/spf13/cobra v1.6.1 h1:o94oiPyS4KD1mPy2fmcYYHHfCxLqYjJOhGsCHFZtEzA=
+github.com/spf13/cobra v1.6.1/go.mod h1:IOw/AERYS7UzyrGinqmz6HLUo219MORXGxhbaJUqzrY=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
diff --git a/main.go b/main.go
index 90549b0..b28e95d 100644
--- a/main.go
+++ b/main.go
@@ -3,19 +3,12 @@ package main
 import (
 	"os"
 
-	c "github.com/linuxsuren/api-testing/cmd"
-	"github.com/spf13/cobra"
+	"github.com/linuxsuren/api-testing/cmd"
 )
 
 func main() {
-	cmd := &cobra.Command{
-		Use:   "atest",
-		Short: "API testing tool",
-	}
-	cmd.AddCommand(c.CreateInitCommand(), c.CreateRunCommand())
-
-	// run command
-	if err := cmd.Execute(); err != nil {
+	c := cmd.NewRootCmd()
+	if err := c.Execute(); err != nil {
 		os.Exit(1)
 	}
 }
diff --git a/sample/constants.go b/sample/constants.go
new file mode 100644
index 0000000..b902464
--- /dev/null
+++ b/sample/constants.go
@@ -0,0 +1,6 @@
+package sample
+
+import _ "embed"
+
+//go:embed testsuite-gitlab.yaml
+var TestSuiteGitLab string