public static void Same_option_appears_as_many_times_as_necessary()
{
var component = new PreferenceComponent(
new FakeRandomnessSource(
0, 0, // A, B
0, 1, // A, C
1, 1, // B, C
3, 2, // D, C
3, 1, // D, B
3, 0), // D, A
ImmutableArray.Create("A", "B", "C", "D"));
component = component.Reduce(ChooseOptionAction.Left);
component = component.Reduce(ChooseOptionAction.Left);
component = component.Reduce(ChooseOptionAction.Left);
component.Choice.LeftOption.ShouldBe("D");
component.Choice.RightOption.ShouldBe("C");
component = component.Reduce(ChooseOptionAction.Left);
component.Choice.LeftOption.ShouldBe("D");
component.Choice.RightOption.ShouldBe("B");
component = component.Reduce(ChooseOptionAction.Left);
component.Choice.LeftOption.ShouldBe("D");
component.Choice.RightOption.ShouldBe("A");
}
public static void Results_are_given_when_all_pairs_are_transitively_known()
{
var component = new PreferenceComponent(
new FakeRandomnessSource(
0, 0, // A, B
0, 1), // A, C
ImmutableArray.Create("A", "B", "C"));
component = component.Reduce(ChooseOptionAction.Left);
component = component.Reduce(ChooseOptionAction.Right);
component.Results.ShouldNotBeNull();
component.Results.SortedResults.ShouldBe(new[] { "C", "A", "B" });
}
public static void Comparison_is_done_if_the_answer_is_not_transitively_known()
{
var component = new PreferenceComponent(
new FakeRandomnessSource(
0, 0, // A, B
0, 1, // A, C
1, 1, // B, C
1, 2), // B, D
ImmutableArray.Create("A", "B", "C", "D"));
component = component.Reduce(ChooseOptionAction.Left);
component = component.Reduce(ChooseOptionAction.Left);
component.Choice.LeftOption.ShouldBe("B");
component.Choice.RightOption.ShouldBe("C");
}
public static void Same_pair_is_not_shown_a_second_time()
{
var component = new PreferenceComponent(
new FakeRandomnessSource(
0, 0, // A, B
2, 2, // C, D
0, 0, // A, B (should be skipped)
0, 1), // A, C
ImmutableArray.Create("A", "B", "C", "D"));
component = component.Reduce(ChooseOptionAction.Left);
component = component.Reduce(ChooseOptionAction.Left);
component.Choice.LeftOption.ShouldBe("A");
component.Choice.RightOption.ShouldBe("C");
}
public static void Results_are_not_given_until_all_pairs_are_transitively_known()
{
var component = new PreferenceComponent(
new FakeRandomnessSource(
0, 0, // A, B
0, 1, // A, C
1, 1), // B, C
ImmutableArray.Create("A", "B", "C"));
component = component.Reduce(ChooseOptionAction.Left);
component = component.Reduce(ChooseOptionAction.Left);
component.Results.ShouldBeNull();
component.Choice.LeftOption.ShouldBe("B");
component.Choice.RightOption.ShouldBe("C");
}
