Added support for specifying the group for testers

lib/spaceship/tunes/tester.rb

@@ -71,14 +71,16 @@ def find(identifier)
         # @param email (String) (required): The email of the new tester
         # @param first_name (String) (optional): The first name of the new tester
         # @param last_name (String) (optional): The last name of the new tester
+        # @param group (String) (optional): The name of the group this tester should be added to
         # @example 
         #   Spaceship::Tunes::Tester.external.create!(email: "[email protected]", first_name: "Cary", last_name:"Bennett")
         # @return (Tester): The newly created tester
-        def create!(email: nil, first_name: nil, last_name: nil) 
+        def create!(email: nil, first_name: nil, last_name: nil, group: nil) 
           data = client.create_tester!(tester: self,
                                         email: email,
                                    first_name: first_name,
-                                    last_name: last_name)
+                                    last_name: last_name,
+                                        group: group)
           self.factory(data)
         end
 

lib/spaceship/tunes/tunes_client.rb

@@ -252,13 +252,12 @@ def testers_by_app(tester, app_id)
       parse_response(r, 'data')['users']
     end
 
-    def create_tester!(tester: nil, email: nil, first_name: nil, last_name: nil) 
+    # @param group (String) an optional group name
+    def create_tester!(tester: nil, email: nil, first_name: nil, last_name: nil, group: nil) 
       url = tester.url[:create]
       raise "Action not provided for this tester type." unless url
 
-      data = {
-        testers: [
-          {
+      tester_data = {
             emailAddress: {
               value: email
             }, 
@@ -272,8 +271,17 @@ def create_tester!(tester: nil, email: nil, first_name: nil, last_name: nil)
               value: true
             }
           }
-        ]
-      }
+
+      if group
+        tester_data[:groups] = [{
+                                  id: nil,
+                                  name: {
+                                    value: group
+                                  }
+                                }]
+      end
+
+      data = { testers: [tester_data] }
 
       r = request(:post) do |req|
         req.url url