public void ValidatesPreBusinessRuleAndExecutes()
{
var model = new CounterModel();
var preRule = Substitute.For <IStateRule <CounterModel> >();
preRule.IsSatisfied(Arg.Any <CounterModel>()).Returns(true);
new CounterIncrementWorkflow(preRule).Execute(model);
Assert.Equal(1, model.Counter);
}
public void AndPredicateFiltersCorrectly()
{
var validCandidate = new CounterModel {
Counter = 1
};
var invalidCandidate = new CounterModel {
Counter = -1
};
var candidates = new List <CounterModel> {
validCandidate, invalidCandidate
}.AsQueryable();
var filtered = candidates.Where(new PositiveCounterRule().And(new LessThanTenCounterRule()).Predicate).ToList();
Assert.Equal(1, filtered.Count);
Assert.Equal(validCandidate.Id, filtered[0].Id);
}
public void ThrowsErrorOnInvalidPreBusinessRuleAndDoesNotExecute()
{
var model = new CounterModel();
var preRule = Substitute.For <IStateRule <CounterModel> >();
preRule.IsSatisfied(Arg.Any <CounterModel>()).Returns(false);
const string description = "This mock rule must be satisfied.";
preRule.Description = description;
var message = Assert.Throws(typeof(StateRuleException), () => new CounterIncrementWorkflow(preRule).Execute(model)).Message;
Assert.Equal(description, message);
Assert.Equal(0, model.Counter);
}