added json test

Author: vtopc

oop/go.mod

@@ -0,0 +1,5 @@
+module oop
+
+go 1.16
+
+require github.com/stretchr/testify v1.7.0

oop/go.sum

@@ -0,0 +1,11 @@
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

oop/main.go

@@ -13,6 +13,7 @@ https://code.tutsplus.com/tutorials/lets-go-object-oriented-programming-in-golan
 import "fmt"
 
 type Animal struct {
+	Name  string `json:"name"`
 	lives int
 }
 
@@ -69,7 +70,7 @@ func (*Cat) Meow() string {
 	return "meow"
 }
 
-// overriding:
+// Die overriding:
 func (c *Cat) Die() string {
 	c.lives--
 

oop/main_test.go

@@ -0,0 +1,31 @@
+package main
+
+import (
+	"encoding/json"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestCatJSON(t *testing.T) {
+	tests := []struct {
+		name string
+		b    []byte
+		want Cat
+	}{
+		{
+			b:    []byte(`{"name":"Cheshire"}`),
+			want: Cat{Animal: &Animal{Name: "Cheshire"}},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			var got Cat
+			err := json.Unmarshal(tt.b, &got)
+			require.NoError(t, err)
+			assert.Equal(t, tt.want, got)
+		})
+	}
+}