diff --git a/dtmcli/utils_test.go b/dtmcli/utils_test.go
new file mode 100644
index 0000000..5a13445
--- /dev/null
+++ b/dtmcli/utils_test.go
@@ -0,0 +1,83 @@
+package dtmcli
+
+import (
+	"errors"
+	"os"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestEP(t *testing.T) {
+	skipped := true
+	err := func() (rerr error) {
+		defer P2E(&rerr)
+		E2P(errors.New("err1"))
+		skipped = false
+		return nil
+	}()
+	assert.Equal(t, true, skipped)
+	assert.Equal(t, "err1", err.Error())
+	err = CatchP(func() {
+		PanicIf(true, errors.New("err2"))
+	})
+	assert.Equal(t, "err2", err.Error())
+	err = func() (rerr error) {
+		defer func() {
+			x := recover()
+			assert.Equal(t, 1, x)
+		}()
+		defer P2E(&rerr)
+		panic(1)
+	}()
+}
+
+func TestTernary(t *testing.T) {
+	assert.Equal(t, "1", OrString("", "", "1"))
+	assert.Equal(t, "", OrString("", "", ""))
+	assert.Equal(t, "1", If(true, "1", "2"))
+	assert.Equal(t, "2", If(false, "1", "2"))
+}
+
+func TestMarshal(t *testing.T) {
+	a := 0
+	type e struct {
+		A int
+	}
+	e1 := e{A: 10}
+	m := map[string]int{}
+	assert.Equal(t, "1", MustMarshalString(1))
+	assert.Equal(t, []byte("1"), MustMarshal(1))
+	MustUnmarshal([]byte("2"), &a)
+	assert.Equal(t, 2, a)
+	MustUnmarshalString("3", &a)
+	assert.Equal(t, 3, a)
+	MustRemarshal(&e1, &m)
+	assert.Equal(t, 10, m["A"])
+}
+
+func TestSome(t *testing.T) {
+	n := MustAtoi("123")
+	assert.Equal(t, 123, n)
+
+	err := CatchP(func() {
+		MustAtoi("abc")
+	})
+	assert.Error(t, err)
+	wd := MustGetwd()
+	assert.NotEqual(t, "", wd)
+
+	dir1 := GetCurrentCodeDir()
+	assert.Equal(t, true, strings.HasSuffix(dir1, "dtmcli"))
+
+	func1 := GetFuncName()
+	assert.Equal(t, true, strings.HasSuffix(func1, "TestSome"))
+
+	os.Setenv("IS_DOCKER_COMPOSE", "1")
+	s := MayReplaceLocalhost("http://localhost")
+	assert.Equal(t, "http://host.docker.internal", s)
+	os.Setenv("IS_DOCKER_COMPOSE", "")
+	s2 := MayReplaceLocalhost("http://localhost")
+	assert.Equal(t, "http://localhost", s2)
+}