public void PictureController_Update()
{
//Arrange
var pictureRepo = new FakeRepository <Picture>(p => p.PictureID);
var tagsRepo = new FakeRepository <Tag>(e => e.TagID);
var postedfilesKeyCollection = new Mock <HttpFileCollectionBase>();
var fakeFileKeys = new List <string>()
{
"file"
};
var postedfile = new Mock <HttpPostedFileBase>();
Request.Setup(req => req.Files).Returns(postedfilesKeyCollection.Object);
postedfilesKeyCollection.Setup(keys => keys.GetEnumerator()).Returns(fakeFileKeys.GetEnumerator());
postedfilesKeyCollection.Setup(keys => keys["file"]).Returns(postedfile.Object);
postedfile.Setup(e => e.InputStream).Returns(new MemoryStream(TEST_BMP));
postedfile.Setup(e => e.FileName).Returns("filename");
postedfile.Setup(e => e.ContentLength).Returns(TEST_BMP.Length);
postedfile.Verify(f => f.SaveAs(It.IsAny <string>()), Times.AtMostOnce());
//Act
var controller = new PicturesController(pictureRepo, tagsRepo);
controller.ControllerContext = new ControllerContext(Context.Object, new RouteData(), controller);
var createResult = controller.Create(postedfile.Object, "tag1, tag2, tag3", "custom name") as RedirectToRouteResult;
var inserted = pictureRepo.GetAll().FirstOrDefault();
var updateResult = controller.Edit((PictureView)inserted, "tag1, tag2") as RedirectToRouteResult;
//Assert
Assert.IsNotNull(createResult); // Check if the view returned a valid result
Assert.IsNotNull(inserted); // Check if the picture was inserted
Assert.IsNotNull(updateResult); // Check if the view returned a valid result.
Assert.IsTrue(new string[] { "tag1", "tag2" }.SequenceEqual(inserted.Tags.Select(t => t.TagLabel))); // Check if the tags were set correctly
}