public void Constructor_GivenNullSequencesRetriever_ShouldThrowError()
{
ISequencesRetriever sequencesRetriever = null;
var exception = Record.Exception(() => new SequenceController(sequencesRetriever));
Assert.IsType <ArgumentNullException>(exception);
}
public void LoadSequence_GivenMoves_ReturnSequence()
{
var moves = new char[] { 'a' };
Mock <ISequencesRetriever> mockSequencesRetriever = new Mock <ISequencesRetriever>();
mockSequencesRetriever.Setup(m => m.GetNextSequenceOfMoves()).Returns(moves);
ISequencesRetriever sequencesRetriever = mockSequencesRetriever.Object;
var sut = new SequenceController(sequencesRetriever);
var result = sut.LoadSequence();
Assert.IsType <Sequence>(result);
}
public void LoadSequence_GivenEmptyMoves_ReturnNull()
{
char[] moves = Array.Empty <char>();
Mock <ISequencesRetriever> mockSequencesRetriever = new Mock <ISequencesRetriever>();
mockSequencesRetriever.Setup(m => m.GetNextSequenceOfMoves()).Returns(moves);
ISequencesRetriever sequencesRetriever = mockSequencesRetriever.Object;
var sut = new SequenceController(sequencesRetriever);
var result = sut.LoadSequence();
Assert.Null(result);
}
public void LoadSequence_GivenMoreMoves_ReturnSequenceIdIncremented()
{
var moves = new char[] { 'a' };
Mock <ISequencesRetriever> mockSequencesRetriever = new Mock <ISequencesRetriever>();
mockSequencesRetriever.Setup(m => m.GetNextSequenceOfMoves()).Returns(moves);
ISequencesRetriever sequencesRetriever = mockSequencesRetriever.Object;
var sut = new SequenceController(sequencesRetriever);
var firstResult = (Sequence)sut.LoadSequence();
var secondResult = (Sequence)sut.LoadSequence();
Assert.Equal(firstResult.SequenceId + 1, secondResult.SequenceId);
}
public SequenceController(ISequencesRetriever sequencesRetriever)
{
_sequencesRetriever = sequencesRetriever ?? throw new System.ArgumentNullException(nameof(sequencesRetriever));
}