diff --git a/convertor/convertor_test.go b/convertor/convertor_test.go
index 9bb2b73..b7fedca 100644
--- a/convertor/convertor_test.go
+++ b/convertor/convertor_test.go
@@ -2,13 +2,14 @@ package convertor
 
 import (
 	"fmt"
-	"reflect"
 	"testing"
 
 	"github.com/duke-git/lancet/internal"
 )
 
 func TestToChar(t *testing.T) {
+	assert := internal.NewAssert(t, "TestToChar")
+
 	cases := []string{"", "abc", "1 2#3"}
 	expected := [][]string{
 		{""},
@@ -16,28 +17,25 @@ func TestToChar(t *testing.T) {
 		{"1", " ", "2", "#", "3"},
 	}
 	for i := 0; i < len(cases); i++ {
-		res := ToChar(cases[i])
-		if !reflect.DeepEqual(res, expected[i]) {
-			internal.LogFailedTestInfo(t, "ToChar", cases[i], expected[i], res)
-			t.FailNow()
-		}
+		assert.Equal(expected[i], ToChar(cases[i]))
 	}
 }
 
 func TestToBool(t *testing.T) {
+	assert := internal.NewAssert(t, "TestToBool")
+
 	cases := []string{"true", "True", "false", "False", "0", "1", "123"}
 	expected := []bool{true, true, false, false, false, true, false}
 
 	for i := 0; i < len(cases); i++ {
-		res, _ := ToBool(cases[i])
-		if res != expected[i] {
-			internal.LogFailedTestInfo(t, "ToBool", cases[i], expected[i], res)
-			t.FailNow()
-		}
+		actual, _ := ToBool(cases[i])
+		assert.Equal(expected[i], actual)
 	}
 }
 
 func TestToBytes(t *testing.T) {
+	assert := internal.NewAssert(t, "TestToBytes")
+
 	cases := []interface{}{
 		0,
 		false,
@@ -49,16 +47,14 @@ func TestToBytes(t *testing.T) {
 		{4, 12, 0, 1, 49},
 	}
 	for i := 0; i < len(cases); i++ {
-		res, _ := ToBytes(cases[i])
-		fmt.Println(res)
-		if !reflect.DeepEqual(res, expected[i]) {
-			internal.LogFailedTestInfo(t, "ToBytes", cases[i], expected[i], res)
-			t.FailNow()
-		}
+		actual, _ := ToBytes(cases[i])
+		assert.Equal(expected[i], actual)
 	}
 }
 
 func TestToInt(t *testing.T) {
+	assert := internal.NewAssert(t, "TestToInt")
+
 	cases := []interface{}{"123", "-123", 123,
 		uint(123), uint8(123), uint16(123), uint32(123), uint64(123),
 		float32(12.3), float64(12.3),
@@ -67,15 +63,14 @@ func TestToInt(t *testing.T) {
 	expected := []int64{123, -123, 123, 123, 123, 123, 123, 123, 12, 12, 0, 0, 0}
 
 	for i := 0; i < len(cases); i++ {
-		res, _ := ToInt(cases[i])
-		if res != expected[i] {
-			internal.LogFailedTestInfo(t, "ToInt", cases[i], expected[i], res)
-			t.FailNow()
-		}
+		actual, _ := ToInt(cases[i])
+		assert.Equal(expected[i], actual)
 	}
 }
 
 func TestToFloat(t *testing.T) {
+	assert := internal.NewAssert(t, "TestToFloat")
+
 	cases := []interface{}{
 		"", "-1", "-.11", "1.23e3", ".123e10", "abc",
 		int(0), int8(1), int16(-1), int32(123), int64(123),
@@ -86,22 +81,19 @@ func TestToFloat(t *testing.T) {
 		0, 1, -1, 123, 123, 123, 123, 123, 123, 123, 12.3, 12.300000190734863}
 
 	for i := 0; i < len(cases); i++ {
-		res, _ := ToFloat(cases[i])
-		if res != expected[i] {
-			internal.LogFailedTestInfo(t, "ToFloat", cases[i], expected[i], res)
-			t.FailNow()
-		}
+		actual, _ := ToFloat(cases[i])
+		assert.Equal(expected[i], actual)
 	}
 }
 
 func TestToString(t *testing.T) {
-	// map
+	assert := internal.NewAssert(t, "TestToString")
+
 	aMap := make(map[string]int)
 	aMap["a"] = 1
 	aMap["b"] = 2
 	aMap["c"] = 3
 
-	// struct
 	type TestStruct struct {
 		Name string
 	}
@@ -124,75 +116,39 @@ func TestToString(t *testing.T) {
 		"[1,2,3]", "{\"a\":1,\"b\":2,\"c\":3}", "{\"Name\":\"TestStruct\"}", "hello"}
 
 	for i := 0; i < len(cases); i++ {
-		res := ToString(cases[i])
-		if res != expected[i] {
-			internal.LogFailedTestInfo(t, "ToString", cases[i], expected[i], res)
-			t.FailNow()
-		}
+		actual := ToString(cases[i])
+		assert.Equal(expected[i], actual)
 	}
 }
 func TestToJson(t *testing.T) {
-	// map
-	aMap := make(map[string]int)
-	aMap["a"] = 1
-	aMap["b"] = 2
-	aMap["c"] = 3
+	assert := internal.NewAssert(t, "TestToJson")
 
-	mapJson := "{\"a\":1,\"b\":2,\"c\":3}"
-	r1, _ := ToJson(aMap)
-	if r1 != mapJson {
-		internal.LogFailedTestInfo(t, "ToJson", aMap, mapJson, r1)
-		t.FailNow()
-	}
+	var aMap = map[string]int{"a": 1, "b": 2, "c": 3}
+	mapJsonStr, _ := ToJson(aMap)
+	assert.Equal("{\"a\":1,\"b\":2,\"c\":3}", mapJsonStr)
 
-	// struct
 	type TestStruct struct {
 		Name string
 	}
 	aStruct := TestStruct{Name: "TestStruct"}
-	structJson := "{\"Name\":\"TestStruct\"}"
-	r2, _ := ToJson(aStruct)
-	if r2 != structJson {
-		internal.LogFailedTestInfo(t, "ToJson", aMap, mapJson, r1)
-		t.FailNow()
-	}
+	structJsonStr, _ := ToJson(aStruct)
+	assert.Equal("{\"Name\":\"TestStruct\"}", structJsonStr)
 }
 
 func TestStructToMap(t *testing.T) {
+	assert := internal.NewAssert(t, "TestStructToMap")
+
 	type People struct {
 		Name string `json:"name"`
 		age  int
 	}
-
-	p1 := People{
+	p := People{
 		"test",
 		100,
 	}
-
-	pm1, _ := StructToMap(p1)
-	m1 := make(map[string]interface{})
-	m1["name"] = "test"
-	//exp1["100"] = 100
-
-	if !reflect.DeepEqual(pm1, m1) {
-		internal.LogFailedTestInfo(t, "StructToMap", p1, m1, pm1)
-		t.FailNow()
-	}
-
-	p2 := People{
-		"test",
-		100,
-	}
-
-	pm2, _ := StructToMap(p1)
-	m2 := make(map[string]interface{})
-	m2["name"] = "test"
-	m2["100"] = 100
-
-	if reflect.DeepEqual(pm2, m2) {
-		internal.LogFailedTestInfo(t, "StructToMap", p2, m2, pm2)
-		t.FailNow()
-	}
+	pm, _ := StructToMap(p)
+	var expected = map[string]interface{}{"name": "test"}
+	assert.Equal(expected, pm)
 }
 
 func TestColorHexToRGB(t *testing.T) {
@@ -201,22 +157,17 @@ func TestColorHexToRGB(t *testing.T) {
 	colorRGB := fmt.Sprintf("%d,%d,%d", r, g, b)
 	expected := "0,51,102"
 
-	if colorRGB != expected {
-		internal.LogFailedTestInfo(t, "ColorHexToRGB", colorHex, expected, colorRGB)
-		t.FailNow()
-	}
+	assert := internal.NewAssert(t, "TestColorHexToRGB")
+	assert.Equal(expected, colorRGB)
 }
 
 func TestColorRGBToHex(t *testing.T) {
 	r := 0
 	g := 51
 	b := 102
-	colorRGB := fmt.Sprintf("%d,%d,%d", r, g, b)
 	colorHex := ColorRGBToHex(r, g, b)
 	expected := "#003366"
 
-	if colorHex != expected {
-		internal.LogFailedTestInfo(t, "ColorHexToRGB", colorRGB, expected, colorHex)
-		t.FailNow()
-	}
+	assert := internal.NewAssert(t, "TestColorRGBToHex")
+	assert.Equal(expected, colorHex)
 }