add unit test for syncOutbox

test/new-unit/email-dao-test.js

@@ -2609,6 +2609,29 @@ define(function(require) {
 
                     expect(pgpMailerStub.send.calledOnce).to.be.true;
 
+                    done();
+                });
+            });
+        });
+        describe('syncOutbox', function() {
+            it('should sync the outbox', function(done) {
+                var folder = 'FOLDAAAA';
+                dao._account.folders = [{
+                    type: 'Folder',
+                    path: folder
+                }];
+
+                var localListStub = sinon.stub(dao, '_localListMessages').withArgs({
+                    folder: folder
+                }).yields(null, [dummyEncryptedMail]);
+
+                dao.syncOutbox({
+                    folder: folder
+                }, function(err) {
+                    expect(err).to.not.exist;
+                    expect(localListStub.calledOnce).to.be.true;
+                    expect(dao._account.folders[0].messages.length).to.equal(1);
+
                     done();
                 });
             });