diff --git a/apps/communications/dialer/test/unit/dialer_test.js b/apps/communications/dialer/test/unit/dialer_test.js
new file mode 100644
index 000000000000..f81097fdf291
--- /dev/null
+++ b/apps/communications/dialer/test/unit/dialer_test.js
@@ -0,0 +1,169 @@
+'use strict';
+
+/* global CallHandler, MocksHelper, MockLazyL10n, MockNavigatormozApps,
+   MockNavigatorMozIccManager, NavbarManager, Notification */
+
+requireApp('communications/dialer/test/unit/mock_contacts.js');
+requireApp('communications/dialer/test/unit/mock_l10n.js');
+requireApp('communications/dialer/test/unit/mock_lazy_loader.js');
+requireApp('communications/dialer/test/unit/mock_utils.js');
+
+require('/shared/test/unit/mocks/mock_navigator_moz_apps.js');
+require('/shared/test/unit/mocks/mock_navigator_moz_icc_manager.js');
+require('/shared/test/unit/mocks/mock_notification.js');
+require('/shared/test/unit/mocks/mock_notification_helper.js');
+require('/shared/test/unit/mocks/mock_settings_listener.js');
+
+requireApp('communications/dialer/js/dialer.js');
+
+var mocksHelperForDialer = new MocksHelper([
+  'Contacts',
+  'LazyL10n',
+  'LazyLoader',
+  'Notification',
+  'NotificationHelper',
+  'SettingsListener',
+  'Utils'
+]).init();
+
+suite('navigation bar', function() {
+  var domContactsIframe;
+  var domOptionRecents;
+  var domOptionContacts;
+  var domOptionKeypad;
+  var domViews;
+
+  var realMozApps;
+  var realMozIccManager;
+
+  mocksHelperForDialer.attachTestHelpers();
+
+  setup(function() {
+    realMozApps = navigator.mozApps;
+    navigator.mozApps = MockNavigatormozApps;
+
+    realMozIccManager = navigator.mozIccManager;
+    navigator.mozIccManager = MockNavigatorMozIccManager;
+
+
+    domViews = document.createElement('section');
+    domViews.id = 'views';
+
+    domOptionRecents = document.createElement('a');
+    domOptionRecents.id = 'option-recents';
+    domViews.appendChild(domOptionRecents);
+
+    domOptionContacts = document.createElement('a');
+    domOptionContacts.id = 'option-contacts';
+    domViews.appendChild(domOptionContacts);
+
+    domOptionKeypad = document.createElement('a');
+    domOptionKeypad.id = 'option-keypad';
+    domViews.appendChild(domOptionKeypad);
+
+    domContactsIframe = document.createElement('iframe');
+    domContactsIframe.id = 'iframe-contacts';
+    domOptionContacts.appendChild(domContactsIframe);
+
+    document.body.appendChild(domViews);
+
+    CallHandler.init();
+    NavbarManager.init();
+  });
+
+  teardown(function() {
+    MockNavigatorMozIccManager.mTeardown();
+    navigator.mozIccManager = realMozIccManager;
+
+    MockNavigatormozApps.mTeardown();
+    navigator.mozApps = realMozApps;
+
+    document.body.removeChild(domViews);
+  });
+
+  suite('CallHandler', function() {
+    suite('> missed call notification', function() {
+      var notificationObject;
+
+      setup(function() {
+        this.sinon.spy(window, 'Notification');
+        MockNavigatorMozIccManager.addIcc('12345', {'cardState': 'ready'});
+        notificationObject = {
+          type: 'notification',
+          number: '123',
+          serviceId: 1
+        };
+      });
+
+      //test('> One SIM', function(done) {
+      //  window.postMessage(notificationObject, '*');
+
+      //  setTimeout(function() {
+      //    MockNavigatormozApps.mTriggerLastRequestSuccess();
+      //    sinon.assert.calledWith(Notification, 'missedCall');
+      //    done();
+      //  });
+      //});
+
+      test('> Two SIMs', function(done) {
+        MockNavigatorMozIccManager.addIcc('6789', {
+          'cardState': 'ready'
+        });
+        window.postMessage(notificationObject, '*');
+
+        setTimeout(function() {
+          MockNavigatormozApps.mTriggerLastRequestSuccess();
+          sinon.assert.calledWith(Notification, 'missedCallMultiSim');
+          assert.deepEqual(MockLazyL10n.keys.missedCallMultiSim, {n: 2});
+          done();
+        });
+      });
+    });
+  });
+
+  suite('NavbarManager', function() {
+    suite('> show / hide', function() {
+      test('NavbarManager.hide() should hide navbar', function() {
+        NavbarManager.hide();
+
+        assert.isTrue(domViews.classList.contains('hide-toolbar'));
+      });
+
+      test('NavbarManager.show() should show navbar', function() {
+        NavbarManager.show();
+
+        assert.isFalse(domViews.classList.contains('hide-toolbar'));
+      });
+    });
+
+    suite('Second tap on contacts tab', function() {
+      test('Listens to click events', function() {
+        this.sinon.spy(domOptionContacts, 'addEventListener');
+        NavbarManager.init();
+        sinon.assert.calledWith(domOptionContacts.addEventListener, 'click',
+                                NavbarManager.contactsTabTap);
+      });
+
+      suite('contactsTabTap', function() {
+        teardown(function() {
+          window.location.hash = '';
+        });
+
+        test('only works when it is a second tap', function() {
+          NavbarManager.contactsTabTap();
+          assert.isFalse(
+            domContactsIframe.src.contains('/contacts/index.html#home')
+          );
+        });
+
+        test('goes to home list', function() {
+          window.location.hash = '#contacts-view';
+          NavbarManager.contactsTabTap();
+          assert.isTrue(
+            domContactsIframe.src.contains('/contacts/index.html#home')
+          );
+        });
+      });
+    });
+  });
+});