use reflect2 for json.Marshaler

value_tests/struct_test.go

@@ -10,6 +10,7 @@ func init() {
 	var pString = func(val string) *string {
 		return &val
 	}
+	epoch := time.Unix(0, 0)
 	unmarshalCases = append(unmarshalCases, unmarshalCase{
 		ptr: (*struct {
 			Field interface{}
@@ -83,13 +84,9 @@ func init() {
 		struct {
 			F *float64
 		}{},
-		// TODO: fix this
-		//struct {
-		//	*time.Time
-		//}{},
 		struct {
 			*time.Time
-		}{&time.Time{}},
+		}{&epoch},
 		struct {
 			*StructVarious
 		}{&StructVarious{}},

value_tests/value_test.go

@@ -6,6 +6,7 @@ import (
 	"encoding/json"
 	"github.com/stretchr/testify/require"
 	"github.com/json-iterator/go"
+	"fmt"
 )
 
 type unmarshalCase struct {
@@ -19,6 +20,10 @@ var marshalCases = []interface{}{
 	nil,
 }
 
+type selectedMarshalCase struct  {
+	marshalCase interface{}
+}
+
 func Test_unmarshal(t *testing.T) {
 	should := require.New(t)
 	for _, testCase := range unmarshalCases {
@@ -35,9 +40,16 @@ func Test_unmarshal(t *testing.T) {
 
 func Test_marshal(t *testing.T) {
 	for _, testCase := range marshalCases {
+		selectedMarshalCase, found := testCase.(selectedMarshalCase)
+		if found {
+			marshalCases = []interface{}{selectedMarshalCase.marshalCase}
+			break
+		}
+	}
+	for i, testCase := range marshalCases {
 		var name string
 		if testCase != nil {
-			name = reflect.TypeOf(testCase).String()
+			name = fmt.Sprintf("[%v]%v/%s", i, testCase, reflect.TypeOf(testCase).String())
 		}
 		t.Run(name, func(t *testing.T) {
 			should := require.New(t)