added some tests

Author: Idnan

Gopkg.lock

@@ -31,4 +31,4 @@
 
 [[constraint]]
   branch = "master"
-  name = "github.com/globalsign/mgo"
+  name = "github.com/globalsign/mgo"

Gopkg.toml

@@ -0,0 +1,28 @@
+package util
+
+import (
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+func TestStringInSlice(t *testing.T) {
+	var actual bool
+
+	actual = StringInSlice("plane", []string{"bus", "car", "bike"})
+	assert.Equal(t, false, actual)
+
+	actual = StringInSlice("bus", []string{"bus", "car", "bike"})
+	assert.Equal(t, true, actual)
+}
+
+func TestJsonEncode(t *testing.T) {
+	var actual string
+
+	actual = JsonEncode([]string{"bus", "car", "bike"})
+	assert.Equal(t, `["bus","car","bike"]`, actual)
+
+	actual = JsonEncode(map[string]int{"bus": 200, "car": 300, "bike": 400})
+	assert.Equal(t, `{"bike":400,"bus":200,"car":300}`, actual)
+}
+
+