public void Returns_freqency_by_repeating_the_input_twice(ChronalCalibrator calibrator)
{
var result = calibrator.GetFirstFrequencyReachedTwice(
ToFrequencyChanges(-6, +3, +8, +5, -6));
result.Should().Be(5);
}
public void Returns_freqency_by_repeating_the_input(ChronalCalibrator calibrator)
{
var result = calibrator.GetFirstFrequencyReachedTwice(
ToFrequencyChanges(3, 3, 4, -2, -4));
result.Should().Be(10);
}
public void Returns_freqency_without_repeating_the_input(ChronalCalibrator calibrator)
{
var result = calibrator.GetFirstFrequencyReachedTwice(
ToFrequencyChanges(1, -1));
result.Should().Be(0);
}
public void Returns_single_positive_frequency_change(
ChronalCalibrator calibrator,
int change)
{
var result = calibrator.Calibrate($"+{change}");
result.Should().Be(change);
}
public void Returns_single_negative_frequency_change(
ChronalCalibrator calibrator,
int change)
{
var frequencyChange = -change;
var result = calibrator.Calibrate($"{frequencyChange}");
result.Should().Be(frequencyChange);
}
public void Returns_sum_of_many_frequency_changes(
ChronalCalibrator calibrator,
bool[] signs,
int[] changes)
{
var frequencyChangesAsString = ToFrequencyChanges(signs, changes);
var expected = signs
.Zip(changes, (s, n) => (s ? 1 : -1) * n)
.Sum();
var result = calibrator.Calibrate(frequencyChangesAsString);
result.Should().Be(expected);
}
public void Solves_day_1_problem_1(ChronalCalibrator calibrator)
{
var myPuzzleInput = File.ReadAllText("Day01/problem1.txt");
calibrator.Calibrate(myPuzzleInput).Should().Be(587);
}
public void Returns_zero_for_no_input(ChronalCalibrator calibrator)
{
var result = calibrator.Calibrate(string.Empty);
result.Should().Be(0);
}
public void Solves_day_1_problem_2(ChronalCalibrator calibrator)
{
var myPuzzleInput = File.ReadAllText("Day01/problem1.txt");
calibrator.GetFirstFrequencyReachedTwice(myPuzzleInput).Should().Be(83130);
}
