feat: add AV.User#getRoles()

Conflicts:
	test/query.js

Author: leeyeh

src/user.js

@@ -531,6 +531,16 @@ module.exports = function(AV) {
       return this._sessionToken;
     },
 
+    /**
+     * Get this user's Roles.
+     * @param {AuthOptions} [options]
+     * @return {Promise} A promise that is fulfilled with the roles when
+     *     the query is complete.
+     */
+    getRoles(options) {
+      return AV.Relation.reverseQuery("_Role", "users", this).find(options);
+    },
+
   }, /** @lends AV.User */ {
     // Class Variables
 

test/query.js

@@ -232,17 +232,12 @@ describe('Queries', function () {
         test.set('number', i);
         promises.unshift(test.save());
       }
-      // AV.Promise.when(promises).then(function() {done();});
       return AV.Promise.all(promises).then(function () {
-        var query = new AV.Query('deletedAll');
-        return query.limit(1000).find();
-      }).then(function (results) {
-        // expect(results.length).to.be(10);
-        return query.destroyAll();
-      }).then(function () {
-        return query.find();
-      }).then(function (results) {
-        expect(results.length).to.be(0);
+        return new AV.Query('deletedAll').limit(300).destroyAll();
+      }).then(function() {
+        return new AV.Query('deletedAll').count();
+      }).then(function(count) {
+        expect(count).to.be(0);
       });
     });
   });

test/user.js

@@ -105,6 +105,26 @@ describe("User", function() {
     });
   });
 
+  describe('User#getRoles', function() {
+    it('Should get the current user\'s role', function() {
+      var user = AV.User.current();
+      return new AV.Query('_Role').equalTo('name', 'testRole').first()
+      .then(function(role) {
+        return role.destroy();
+      }).catch(function() {
+        // already destroyed
+      }).then(function() {
+        var role = new AV.Role("testRole");
+        role.getUsers().add(user);
+        return role.save()
+      }).then(function() {
+        return user.getRoles()
+      }).then(function(roles) {
+        expect(roles.length).to.be(1);
+        expect(roles[0].getName()).to.be('testRole');
+      });
+    });
+  });
 
   describe("Associations", function() {
     it("return post relation to user", function() {