public void GetCandidatesCount_should_return_correct_value_if_there_are_multiple_candidates()
{
var sut = new Grid();
sut.AddCandidate(_position, Value.Five);
sut.AddCandidate(_position, Value.One);
sut.GetCandidatesCount(_position).Should().Be(2);
}
public void AddCandidate_should_set_candidate_if_called_multiple_times_with_same_value()
{
var sut = new Grid();
var position = _position;
sut.AddCandidate(position, Value.One);
sut.AddCandidate(position, Value.One);
sut.AddCandidate(position, Value.One);
sut.GetCandidatesCount(position).Should().Be(1);
sut.GetCandidates(position).Should().Be(Candidates.One);
}
public void ClearAllCandidates_should_remove_candidates_from_position()
{
var sut = new Grid();
sut.AddCandidate(_position, Value.One);
sut.AddCandidate(_position, Value.Five);
sut.ClearCandidates(_position);
sut.GetCandidates(_position).Should().Be(Candidates.None);
sut.GetCandidatesCount(_position).Should().Be(0);
}
public void Restart_should_remove_candidates()
{
var sut = new Grid();
sut.AddCandidate(_position, Value.One);
sut.AddCandidate(_position, Value.Two);
sut.AddCandidate(_position, Value.Three);
sut.Restart();
sut.GetCandidatesCount(_position).Should().Be(0);
sut.GetCandidates(_position).Should().Be(Candidates.None);
}
public void AddCandidate_multiple_calls_should_combine_various_candidates()
{
var sut = new Grid();
var position = _position;
sut.AddCandidate(position, Value.One);
sut.AddCandidate(position, Value.Five);
sut.AddCandidate(position, Value.Eight);
sut.GetCandidatesCount(position).Should().Be(3);
sut.HasCandidate(position, Value.One).Should().BeTrue();
sut.HasCandidate(position, Value.Five).Should().BeTrue();
sut.HasCandidate(position, Value.Eight).Should().BeTrue();
}
public void Clone_should_have_same_candidates()
{
var sut = new Grid();
sut.AddCandidate(_position, Value.One);
sut.AddCandidate(_position, Value.Two);
sut.AddCandidate(_position, Value.Three);
var actual = sut.Clone();
actual.GetCandidatesCount(_position).Should().Be(3);
actual.HasCandidate(_position, Value.One).Should().BeTrue();
actual.HasCandidate(_position, Value.Two).Should().BeTrue();
actual.HasCandidate(_position, Value.Three).Should().BeTrue();
}
private void SetValue(Grid grid, BitArray bitArray, Position pos)
{
// IsGiven?
if (bitArray.Get(_counter++))
{
grid.SetValue(pos, GetValue(bitArray));
grid.SetIsGiven(pos, true);
}
// IsInput?
else if (bitArray.Get(_counter++))
{
grid.SetIsGiven(pos, false);
grid.SetValue(pos, GetValue(bitArray));
}
else
{
grid.SetIsGiven(pos, false);
grid.SetValue(pos, Value.None);
foreach (var value in Value.NonEmpty)
{
if (bitArray.Get(_counter++))
{
grid.AddCandidate(pos, value);
}
}
}
}
public void ClearCandidatesEverywhere_should_remove_all_candidates_from_all_positions()
{
var sut = new Grid();
var position00 = new Position(0, 0);
var position88 = new Position(8, 8);
sut.AddCandidate(position00, Value.One);
sut.AddCandidate(position00, Value.Two);
sut.AddCandidate(position88, Value.One);
sut.AddCandidate(position88, Value.Two);
sut.ClearCandidatesEverywhere();
sut.GetCandidates(position00).Should().Be(Candidates.None);
sut.GetCandidates(position88).Should().Be(Candidates.None);
}
public void HasCandidate_should_return_true_only_for_present_candidates()
{
var sut = new Grid();
sut.AddCandidate(_position, Value.One);
sut.AddCandidate(_position, Value.Two);
sut.HasCandidate(_position, Value.One).Should().BeTrue();
sut.HasCandidate(_position, Value.Two).Should().BeTrue();
sut.HasCandidate(_position, Value.Three).Should().BeFalse();
sut.HasCandidate(_position, Value.Four).Should().BeFalse();
sut.HasCandidate(_position, Value.Five).Should().BeFalse();
sut.HasCandidate(_position, Value.Six).Should().BeFalse();
sut.HasCandidate(_position, Value.Seven).Should().BeFalse();
sut.HasCandidate(_position, Value.Eight).Should().BeFalse();
sut.HasCandidate(_position, Value.Nine).Should().BeFalse();
}
public void AddCandidate_should_set_candidate()
{
var sut = new Grid();
var position = _position;
sut.AddCandidate(position, Value.One);
sut.GetCandidatesCount(position).Should().Be(1);
sut.GetCandidates(position).Should().Be(Candidates.One);
}
public void SetValue_should_remove_candidates()
{
var sut = new Grid();
var position = _position;
sut.AddCandidate(position, Value.One);
sut.SetValue(position, Value.Nine);
sut.GetCandidates(position).Should().Be(Candidates.None);
}
public void RemoveCandidate_should_remove_existing_candidate()
{
var sut = new Grid();
sut.AddCandidate(_position, Value.One);
sut.RemoveCandidate(_position, Value.One);
sut.GetCandidates(_position).Should().Be(Candidates.None);
sut.GetCandidatesCount(_position).Should().Be(0);
}
public void ToggleCandidate_should_turn_off_candidate_if_it_is_present()
{
var sut = new Grid();
sut.AddCandidate(_position, Value.One);
sut.ToggleCandidate(_position, Value.One);
sut.GetCandidatesCount(_position).Should().Be(0);
sut.GetCandidates(_position).Should().Be(Candidates.None);
}