Begin isolating object creation code into an externalizable API. (#1569)

* Tidy up transformKeyValue

* Specialize transformKeyValue for object creation

* remove keys that never appear in creation requests

* rename function

* remove local var

* early exit for simple keys

* Refactor create

* Force class creation when creating an object

* Pass parameters to key value transformer

* No need to check for array in this func

* start using Parse Format schema in MongoTransform

* Remove call to getExpectedType

* add tests to ensure client can't see _PushStatus

spec/Parse.Push.spec.js

@@ -1,5 +1,6 @@
 'use strict';
 
+let request = require('request');
 
 describe('Parse.Push', () => {
 
@@ -89,4 +90,57 @@ describe('Parse.Push', () => {
       done();
     });
   });
+
+  it('should not allow clients to query _PushStatus', done => {
+    setup()
+    .then(() => Parse.Push.send({
+      where: {
+        deviceType: 'ios'
+      },
+      data: {
+        badge: 'increment',
+        alert: 'Hello world!'
+      }
+    }, {useMasterKey: true}))
+    .then(() => {
+      request.get({
+        url: 'http://localhost:8378/1/classes/_PushStatus',
+        json: true,
+        headers: {
+          'X-Parse-Application-Id': 'test',
+        },
+      }, (error, response, body) => {
+        expect(body.results.length).toEqual(0);
+        done();
+      });
+    });
+  });
+
+  it('should allow master key to query _PushStatus', done => {
+    setup()
+    .then(() => Parse.Push.send({
+      where: {
+        deviceType: 'ios'
+      },
+      data: {
+        badge: 'increment',
+        alert: 'Hello world!'
+      }
+    }, {useMasterKey: true}))
+    .then(() => {
+      request.get({
+        url: 'http://localhost:8378/1/classes/_PushStatus',
+        json: true,
+        headers: {
+          'X-Parse-Application-Id': 'test',
+          'X-Parse-Master-Key': 'test',
+        },
+      }, (error, response, body) => {
+        expect(body.results.length).toEqual(1);
+        expect(body.results[0].query).toEqual('{"deviceType":"ios"}');
+        expect(body.results[0].payload).toEqual('{"badge":"increment","alert":"Hello world!"}');
+        done();
+      });
+    });
+  });
 });