feat: day 1 completed both part 1 and part 2

01/HistorianHysteria.Tests/PuzzleSolverTests.cs

@@ -0,0 +1,51 @@
+namespace HistorianHysteria.Tests;
+
+public class PuzzleSolverTests
+{
+  private readonly PuzzleParser _puzzleParser = new();
+  private readonly PuzzleSolver _puzzleSolver = new();
+  private readonly List<int> _leftTestList = [3, 4, 2, 1, 3, 3];
+  private readonly List<int> _rightTestList = [4, 3, 5, 3, 9, 3];
+
+  private async Task<(List<int> left, List<int> Right)> GetPuzzleLists()
+  {
+    var inputPath = Path.Combine(AppContext.BaseDirectory, "INPUT.txt");
+    var input = await File.ReadAllLinesAsync(inputPath);
+    return _puzzleParser.Parse(input);
+  }
+
+  [Test]
+  public async Task CalculateTotalDistance_WhenGivenLists_ItShouldReturnTotalDistance()
+  {
+    var result = _puzzleSolver.CalculateTotalDistance(_leftTestList, _rightTestList);
+
+    await Assert.That(result).IsEqualTo(11);
+  }
+
+  [Test]
+  public async Task CalculateTotalDistance_WhenGivenPuzzleInputForPartOne_ItShouldReturnTotalDistance()
+  {
+    var (left, right) = await GetPuzzleLists();
+
+    var result = _puzzleSolver.CalculateTotalDistance(left, right);
+
+    await Assert.That(result).IsEqualTo(1765812);
+  }
+
+  [Test]
+  public async Task CalculateSimilarityScore_WhenGivenLists_ItShouldReturnSimilarityScore()
+  {
+    var result = _puzzleSolver.CalculateSimilarityScore(_leftTestList, _rightTestList);
+
+    await Assert.That(result).IsEqualTo(31);
+  }
+
+  [Test]
+  public async Task CalculateSimilarityScore_WhenGivenPuzzleInputForPartOne_ItShouldReturnSimilarityScore()
+  {
+    var (left, right) = await GetPuzzleLists();
+    var result = _puzzleSolver.CalculateSimilarityScore(left, right);
+
+    await Assert.That(result).IsEqualTo(20520794);
+  }
+}