public async Task Update_Book_CoverPath()
{
var book = await BookHelpers.CreateValidBookWithAllProperties();
var repository = new BookRepository(_fixture.Context);
(await repository.ExistsAsync(book.Id)).Should().BeTrue();
var sut = await repository.GetAsync(book.Id);
var bookId = sut.Id;
sut.Should().NotBeNull();
sut.BookCoverPath.Should().Be(@"C:\temp\pic.jpg");
await BookHelpers.UpdateCoverPath(sut.Id, @"\\filepath\newFile.jpg");
await _fixture.Context.Entry(sut).ReloadAsync();
sut.BookCoverPath.Should().Be(@"\\filepath\newFile.jpg");
sut.Id.Should().Be(bookId);
}