From 832437440218a83b4798e5c893d2151865390b8a Mon Sep 17 00:00:00 2001
From: Jason Toffaletti <jtoffaletti@apple.com>
Date: Sat, 16 Sep 2017 16:24:27 -0700
Subject: [PATCH] add tests for decoding nil interfaces

---
 jsoniter_interface_test.go | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/jsoniter_interface_test.go b/jsoniter_interface_test.go
index c489332..62aec84 100644
--- a/jsoniter_interface_test.go
+++ b/jsoniter_interface_test.go
@@ -371,6 +371,29 @@ func Test_omitempty_nil_interface(t *testing.T) {
 	should.Equal(string(js), str)
 }
 
+func Test_omitempty_nil_nonempty_interface(t *testing.T) {
+	type TestData struct {
+		Field MyInterface `json:"field,omitempty"`
+	}
+	should := require.New(t)
+
+	obj := TestData{
+		Field: nil,
+	}
+
+	js, err := json.Marshal(obj)
+	should.Equal(nil, err)
+	should.Equal("{}", string(js))
+
+	str, err := MarshalToString(obj)
+	should.Equal(nil, err)
+	should.Equal(string(js), str)
+
+	err = Unmarshal(js, &obj)
+	should.Equal(nil, err)
+	should.Equal(nil, obj.Field)
+}
+
 func Test_marshal_nil_marshaler_interface(t *testing.T) {
 	type TestData struct {
 		Field json.Marshaler `json:"field"`
@@ -407,4 +430,9 @@ func Test_marshal_nil_nonempty_interface(t *testing.T) {
 	str, err := MarshalToString(obj)
 	should.Equal(nil, err)
 	should.Equal(string(js), str)
+
+	obj.Field = MyString("hello")
+	err = Unmarshal(js, &obj)
+	should.Equal(nil, err)
+	should.Equal(nil, obj.Field)
 }