public void ProcessResponse_Should_ResetIntervalForBadAnswer(ResponseQuality qual)
{
var interval = RepetitionInterval.FromValues(4, 2.5f);
interval.ProcessResponse(qual);
interval.Interval.Should().Be(1);
}
public void ProcessResponse_Should_UpdateInterval()
{
const int initialInterval = 3;
var interval = RepetitionInterval.FromValues(initialInterval, 2.5f);
interval.ProcessResponse(ResponseQuality.CorrectPerfect);
interval.Interval.Should().BeGreaterThan(6);
interval.EasinessFactor.Should().NotBe(2.5f);
}
public void ProcessResponse_Should_UpdateIntervalFirstValues()
{
var interval = RepetitionInterval.FromValues(0, 2.5f);
interval.ProcessResponse(ResponseQuality.CorrectPerfect);
interval.Interval.Should().Be(1);
interval.ProcessResponse(ResponseQuality.CorrectPerfect);
interval.Interval.Should().Be(6);
}
public void ProcessResponse_Should_Require3CorrectResponsesFirst()
{
var interval = RepetitionInterval.NewDefault();
interval.ProcessResponse(ResponseQuality.CorrectPerfect);
interval.ProcessResponse(ResponseQuality.IncorrectBlackout);
interval.ProcessResponse(ResponseQuality.CorrectPerfect);
interval.ProcessResponse(ResponseQuality.CorrectDifficult);
interval.Interval.Should().Be(1);
}
public void ProcessResponse_ShouldNot_UpdateEasinessFactorFirst3()
{
var interval = RepetitionInterval.NewDefault();
interval.ProcessResponse(ResponseQuality.CorrectPerfect);
interval.Interval.Should().Be(0);
interval.ProcessResponse(ResponseQuality.CorrectPerfect);
interval.Interval.Should().Be(0);
interval.ProcessResponse(ResponseQuality.CorrectPerfect);
interval.Interval.Should().Be(1);
}
public void ProcessResponse_ShouldNot_UpdateStartBadAnswer(ResponseQuality badQuality)
{
var interval = RepetitionInterval.NewDefault();
interval.ProcessResponse(badQuality);
interval.ProcessResponse(badQuality);
interval.ProcessResponse(badQuality);
interval.Interval.Should().Be(0);
interval.ProcessResponse(ResponseQuality.CorrectPerfect);
interval.ProcessResponse(ResponseQuality.CorrectPerfect);
interval.Interval.Should().Be(0);
}