public void CandidateEqualityTest()
{
var candidate = new SingleStepSolution.Candidate(1, 2, 3);
var otherCandidate = new SingleStepSolution.Candidate(1, 2, 3);
Assert.That(candidate != null);
Assert.That(null != candidate);
Assert.That(candidate == otherCandidate);
Assert.That(candidate.Equals(otherCandidate));
Assert.That(candidate.Equals((object)otherCandidate));
Assert.That(candidate.GetHashCode() == otherCandidate.GetHashCode());
var rowDiffers = new SingleStepSolution.Candidate(0, 2, 3);
Assert.That(candidate != rowDiffers);
var columnDiffers = new SingleStepSolution.Candidate(1, 0, 3);
Assert.That(candidate != columnDiffers);
var valueDiffers = new SingleStepSolution.Candidate(1, 2, 0);
Assert.That(candidate != valueDiffers);
candidate = null;
otherCandidate = null;
Assert.That(candidate == otherCandidate);
}
public void ConstructorArgumentValidationTest()
{
var eliminations = new SingleStepSolution.Candidate[0];
Assert.That(() => new SingleStepSolution(null, "test"), Throws.InstanceOf <ArgumentNullException>());
Assert.That(() => new SingleStepSolution(eliminations, null), Throws.InstanceOf <ArgumentNullException>());
Assert.That(() => new SingleStepSolution(eliminations, string.Empty), Throws.InstanceOf <ArgumentException>());
Assert.That(() => new SingleStepSolution(0, 0, 0, null), Throws.InstanceOf <ArgumentNullException>());
Assert.That(() => new SingleStepSolution(0, 0, 0, string.Empty), Throws.InstanceOf <ArgumentException>());
}
public void CandidateToStringTest()
{
var candidate = new SingleStepSolution.Candidate(1, 2, 3);
Assert.That(candidate.ToString(), Is.EqualTo("[1,2] - 3"));
}
