public async Task UpdateBlogEntryCommand()
        {
            var sut = new AddOrUpdateBlogEntryCommandHandler(this.unitOfWork);

            var blogEntry = new BlogEntry()
            {
                ShortContent = "Test",
                Header       = "Test"
            };

            await sut.HandleAsync(new AddOrUpdateBlogEntryCommand()
            {
                Entity = blogEntry,
                Tags   = new[] { "Tag1", "Tag2" }
            });

            Assert.Single(this.unitOfWork.BlogEntries);
            Assert.Equal(2, this.unitOfWork.Tags.Count());
            Assert.Equal(2, this.unitOfWork.BlogEntryTags.Count());

            await sut.HandleAsync(new AddOrUpdateBlogEntryCommand()
            {
                Entity = new BlogEntry()
                {
                    Id           = blogEntry.Id,
                    Permalink    = "Test2",
                    ShortContent = "Test2",
                    Header       = "Test2"
                },
                Tags = new[] { "Tag2", "Tag3" }
            });

            Assert.Single(this.unitOfWork.BlogEntries);
            Assert.Equal(3, this.unitOfWork.Tags.Count());
            Assert.Equal(2, this.unitOfWork.BlogEntryTags.Count());
        }
        public async Task AddBlogEntryCommand()
        {
            var sut = new AddOrUpdateBlogEntryCommandHandler(this.unitOfWork);

            await sut.HandleAsync(new AddOrUpdateBlogEntryCommand()
            {
                Entity = new BlogEntry()
                {
                    ShortContent = "Test",
                    Header       = "Test"
                },
                Tags = new[] { "Tag1" }
            });

            Assert.Single(this.unitOfWork.BlogEntries);
            Assert.Single(this.unitOfWork.Tags);
            Assert.Single(this.unitOfWork.BlogEntryTags);
        }