Implement possibility to work with Zoho sandbox

lib/node-zoho.coffee

@@ -1,11 +1,15 @@
 class Zoho
   authToken: null
+  isSandbox: false
   region: 'com'
 
   constructor: (options = {}) ->
     if options.region?
       @region = options.region
 
+    if options.isSandbox?
+      @isSandbox = options.isSandbox
+
     @authDefaults =
       host: "accounts.zoho.#{@region}"
       port: 443

lib/products/crm/index.coffee

@@ -23,8 +23,9 @@ class CrmProduct extends BaseProduct
     return 'crmapi'
 
   getBaseUrl: ->
+    sandboxPart = if @zoho.isSandbox then 'sandbox' else ''
     return {
-      hostname: "crm.zoho.#{@zoho.region}"
+      hostname: "crm#{sandboxPart}.zoho.#{@zoho.region}"
       protocol: 'https'
       query: {
         authtoken: @zoho.authToken

spec/unit/crm/crm-product-spec.coffee

@@ -42,6 +42,10 @@ describe 'crm', ->
     it 'returns hosnamet: crm.zoho.com', ->
       expect(Crm.getBaseUrl().hostname).toBe('crm.zoho.com')
 
+    it 'returns hostname: crm.zoho.com', ->
+      sandboxCrm = new CrmProduct(Object.assign({isSandbox: true}, zoho))
+      expect(sandboxCrm.getBaseUrl().hostname).toBe('crmsandbox.zoho.com')
+
     it 'protocol https', ->
       expect(Crm.getBaseUrl().protocol).toBe('https')
 

spec/unit/node-zoho-spec.coffee

@@ -86,3 +86,12 @@ describe "node-zoho", ->
         options.region = 'eu'
         zohoApi = new zoho(options)
         expect(zohoApi.region).toEqual('eu')
+
+    describe "test Zoho sandbox mode", ->
+      it "has default disabled sandbox mode", ->
+        expect(zohoApi.isSandbox).toEqual(false)
+
+      it "has enabled sandbox mode", ->
+        tempOptions = Object.assign({isSandbox: true}, options)
+        tempZohoApi = new zoho(tempOptions)
+        expect(tempZohoApi.isSandbox).toEqual(true)