79 lines
2.3 KiB
C#
79 lines
2.3 KiB
C#
namespace PlutonianPebbles.Tests;
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public class ObserverTests
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{
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private static readonly string[] ExampleInput = ["125", "17"];
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private async Task<string> GetPuzzleInput()
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{
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return await File.ReadAllTextAsync(Path.Combine(AppContext.BaseDirectory, "INPUT.txt"));
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}
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[Test]
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public async Task Blink_WhenCalledWithPuzzleInputAnd25Times_ItShouldReturnCorrectNumberOfStones()
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{
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var input = await GetPuzzleInput();
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var stones = input
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.Split(" ", StringSplitOptions.TrimEntries | StringSplitOptions.RemoveEmptyEntries)
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.Select(Stone.From)
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.ToList();
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var observer = Observer.Of(stones);
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var result = observer.Blink(25);
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await Assert.That(result).IsEqualTo(191690);
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}
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[Test]
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public async Task Blink_WhenCalledWithPuzzleInputAnd75Times_ItShouldReturnCorrectNumberOfStones()
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{
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var input = await GetPuzzleInput();
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var stones = input
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.Split(" ", StringSplitOptions.TrimEntries | StringSplitOptions.RemoveEmptyEntries)
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.Select(Stone.From)
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.ToList();
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var observer = Observer.Of(stones);
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var result = observer.Blink(75);
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await Assert.That(result).IsEqualTo(228651922369703);
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}
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[Test]
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public async Task Blink_WhenCalledWithExampleInputAnd25Times_ItShouldReturnCorrectNumberOfStones()
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{
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var stones = ExampleInput.Select(Stone.From).ToList();
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var observer = Observer.Of(stones);
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var result = observer.Blink(25);
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await Assert.That(result).IsEqualTo(55312);
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}
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[Test]
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[MethodDataSource(nameof(BlinkTestCases))]
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public async Task Blink_WhenCalled_ItShouldReturnExpectedValue(BlinkTestCase testCase)
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{
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var stones = testCase.Stones.Select(Stone.From).ToList();
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var observer = Observer.Of(stones);
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var result = observer.Blink(testCase.NumberOfBlinks);
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await Assert.That(result).IsEqualTo(testCase.ExpectedNumberOfStones);
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}
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public static IEnumerable<Func<BlinkTestCase>> BlinkTestCases()
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{
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yield return () => new(ExampleInput, 0, 2);
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yield return () => new(ExampleInput, 1, 3);
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yield return () => new(ExampleInput, 2, 4);
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yield return () => new(ExampleInput, 3, 5);
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yield return () => new(ExampleInput, 4, 9);
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yield return () => new(ExampleInput, 5, 13);
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yield return () => new(ExampleInput, 6, 22);
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}
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public record BlinkTestCase(string[] Stones, int NumberOfBlinks, long ExpectedNumberOfStones);
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} |