public void MustBeCurrentVersion_PreviousVersion_ReturnsError()
{
_context.Setup(x => x.HttpContext).Returns(Creator.GetContext());
var validator = new SolutionsValidator(_context.Object, _logger.Object, _solutionDatastore.Object, _organisationDatastore.Object, _env.Object);
var soln = Creator.GetSolution();
_solutionDatastore.Setup(x => x.ByOrganisation(soln.OrganisationId)).Returns(new[] { Creator.GetSolution(previousId: soln.Id) });
validator.MustBeCurrentVersion();
var valres = validator.Validate(soln);
valres.Errors.Should()
.ContainSingle(x => x.ErrorMessage == "Can only change current version")
.And
.HaveCount(1);
}
