diff --git a/src/ui/public/chrome/appSwitcher/__tests__/appSwitcher.js b/src/ui/public/chrome/appSwitcher/__tests__/appSwitcher.js
new file mode 100644
index 000000000000..ab665674861f
--- /dev/null
+++ b/src/ui/public/chrome/appSwitcher/__tests__/appSwitcher.js
@@ -0,0 +1,198 @@
+var sinon = require('auto-release-sinon');
+var ngMock = require('ngMock');
+var $ = require('jquery');
+var expect = require('expect.js');
+var constant = require('lodash').constant;
+var set = require('lodash').set;
+var cloneDeep = require('lodash').cloneDeep;
+var indexBy = require('lodash').indexBy;
+
+require('ui/chrome');
+require('ui/chrome/appSwitcher');
+
+describe('appSwitcher directive', function () {
+  var env;
+
+  beforeEach(ngMock.module('kibana', function ($provide) {
+    $provide.decorator('$window', function ($delegate) {
+      return Object.create($delegate, set({}, 'location.value', Object.create($delegate.location)));
+    });
+  }));
+
+  function setup(href, links) {
+    return ngMock.inject(function ($window, $rootScope, $compile) {
+      $rootScope.chrome = {
+        getNavLinks: constant(cloneDeep(links)),
+      };
+
+      env = {
+        $scope: $rootScope,
+        $el: $compile($('<app-switcher>'))($rootScope),
+        $links: $rootScope.chrome.getNavLinks(),
+        currentHref: href,
+        location: $window.location
+      };
+
+      Object.defineProperties($window.location, {
+        href: {
+          get: function () { return env.currentHref; },
+          set: function (val) { return env.currentHref = val; },
+        },
+        reload: {
+          value: sinon.stub()
+        }
+      });
+
+      env.$scope.$digest();
+    });
+  }
+
+  context('when one links is for the active app', function () {
+    var myLink = {
+      active: true,
+      title: 'myLink',
+      url: 'http://localhost:555/app/myApp',
+      lastSubUrl: 'http://localhost:555/app/myApp#/lastSubUrl'
+    };
+
+    var notMyLink = {
+      active: false,
+      title: 'notMyLink',
+      url: 'http://localhost:555/app/notMyApp',
+      lastSubUrl: 'http://localhost:555/app/notMyApp#/lastSubUrl'
+    };
+
+    beforeEach(setup('http://localhost:5555/app/myApp/', [myLink, notMyLink]));
+
+    it('links to the active apps base url', function () {
+      var $myLink = env.$el.findTestSubject('appLink').eq(0);
+      expect($myLink.prop('href')).to.be(myLink.url);
+      expect($myLink.prop('href')).to.not.be(myLink.lastSubUrl);
+    });
+
+    it('links to the inactive apps last sub url', function () {
+      var $notMyLink = env.$el.findTestSubject('appLink').eq(1);
+      expect($notMyLink.prop('href')).to.be(notMyLink.lastSubUrl);
+      expect($notMyLink.prop('href')).to.not.be(notMyLink.url);
+    });
+  });
+
+  context('when none of the links are for the active app', function () {
+    var myLink = {
+      active: false,
+      title: 'myLink',
+      url: 'http://localhost:555/app/myApp',
+      lastSubUrl: 'http://localhost:555/app/myApp#/lastSubUrl'
+    };
+
+    var notMyLink = {
+      active: false,
+      title: 'notMyLink',
+      url: 'http://localhost:555/app/notMyApp',
+      lastSubUrl: 'http://localhost:555/app/notMyApp#/lastSubUrl'
+    };
+
+    beforeEach(setup('http://localhost:5555/app/myApp/', [myLink, notMyLink]));
+
+    it('links to the lastSubUrl for each', function () {
+      var $links = env.$el.findTestSubject('appLink');
+      var $myLink = $links.eq(0);
+      var $notMyLink = $links.eq(1);
+
+      expect($myLink.prop('href')).to.be(myLink.lastSubUrl);
+      expect($myLink.prop('href')).to.not.be(myLink.url);
+
+      expect($notMyLink.prop('href')).to.be(notMyLink.lastSubUrl);
+      expect($notMyLink.prop('href')).to.not.be(notMyLink.url);
+    });
+  });
+
+  context('clicking a link that matches entire url', function () {
+    var url = 'http://localhost:555/app/myApp#/lastSubUrl';
+    beforeEach(setup(url, [
+      { url: url }
+    ]));
+
+    it('calls window.location.reload and prevents default behavior', function () {
+      var event = new $.Event('click');
+
+      expect(env.location.reload.callCount).to.be(0);
+      expect(event.isDefaultPrevented()).to.be(false);
+      expect(event.isPropagationStopped()).to.be(false);
+
+      var $link = env.$el.findTestSubject('appLink');
+      expect($link.prop('href')).to.be(env.currentHref);
+      $link.trigger(event);
+
+      expect(event.isPropagationStopped()).to.be(false);
+      expect(event.isDefaultPrevented()).to.be(true);
+      expect(env.location.reload.callCount).to.be(1);
+    });
+  });
+
+  context('clicking a link with matching href except different hash', function () {
+    var url = 'http://localhost:555/app/myApp?query=1';
+    beforeEach(setup(url + '#/lastSubUrl', [
+      { url: url }
+    ]));
+
+    it('calls window.location.reload and prevents default behavior', function () {
+      var event = new $.Event('click');
+
+      expect(env.location.reload.callCount).to.be(0);
+      expect(event.isDefaultPrevented()).to.be(false);
+      expect(event.isPropagationStopped()).to.be(false);
+
+      var $link = env.$el.findTestSubject('appLink');
+      expect($link.prop('href')).to.be(url);
+      $link.trigger(event);
+
+      expect(event.isPropagationStopped()).to.be(false);
+      expect(event.isDefaultPrevented()).to.be(true);
+      expect(env.location.reload.callCount).to.be(1);
+    });
+  });
+
+  context('clicking a link with matching host', function () {
+    beforeEach(setup('http://localhost:555/someOtherPath', [
+      {
+        active: true,
+        url: 'http://localhost:555/app/myApp'
+      }
+    ]));
+
+    it('allows click through', function () {
+      var event = new $.Event('click');
+
+      expect(env.location.reload.callCount).to.be(0);
+      expect(event.isPropagationStopped()).to.be(false);
+
+      env.$el.findTestSubject('appLink').trigger(event);
+
+      expect(env.location.reload.callCount).to.be(0);
+      expect(event.isPropagationStopped()).to.be(false);
+    });
+  });
+
+  context('clicking a link with matching host and path', function () {
+    beforeEach(setup('http://localhost:555/app/myApp?someQuery=true', [
+      {
+        active: true,
+        url: 'http://localhost:555/app/myApp?differentQuery=true'
+      }
+    ]));
+
+    it('allows click through', function () {
+      var event = new $.Event('click');
+
+      expect(env.location.reload.callCount).to.be(0);
+      expect(event.isPropagationStopped()).to.be(false);
+
+      env.$el.findTestSubject('appLink').trigger(event);
+
+      expect(env.location.reload.callCount).to.be(0);
+      expect(event.isPropagationStopped()).to.be(false);
+    });
+  });
+
+});