public void AllTagsAsJson_Should_Return_Model_And_Tags()
{
// Arrange
Page page1 = AddDummyPage1();
page1.Tags = "a-tag,b-tag";
Page page2 = AddDummyPage2();
page2.Tags = "z-tag,a-tag";
// Act
ActionResult result = _pagesController.AllTagsAsJson();
// Assert
Assert.That(result, Is.TypeOf <JsonResult>(), "JsonResult");
JsonResult jsonResult = result as JsonResult;
Assert.NotNull(jsonResult, "Null jsonResult");
var xxx = jsonResult.Data.GetType();
Assert.That(jsonResult.JsonRequestBehavior, Is.EqualTo(JsonRequestBehavior.AllowGet));
Assert.That(jsonResult.Data, Is.AssignableTo <IEnumerable <string> >());
_pageServiceMock.Verify(x => x.AllTags());
}