public void raises_concurrency_issue()
{
var aggregate = new SimpleEventSourcedRoot();
var result = aggregate.Must().HaveVersion(1);
result.Should().BeInvalid().WithMessage(ConcurrencyIssue.VersionMismatch(1, 0));
}
public void guards_expected_version()
{
var aggregate = new SimpleEventSourcedRoot();
var result = aggregate.Must().HaveVersion(0);
result.Should().BeValid().WithoutMessages();
}