feat: day 1 completed both part 1 and part 2

01/HistorianHysteria.Tests/PuzzleParserTests.cs

@@ -0,0 +1,25 @@
+namespace HistorianHysteria.Tests;
+
+public class PuzzleParserTests
+{
+  private readonly PuzzleParser _puzzleParser = new();
+
+  [Test]
+  public async Task Parse_WhenGivenLines_ReturnsLeftAndRightLists()
+  {
+    var input = new string[] 
+    {
+      "3   4",
+      "4   3",
+      "2   5",
+      "1   3",
+      "3   9",
+      "3   3",
+    };
+
+    var (left, right) = _puzzleParser.Parse(input);
+
+    await Assert.That(left).IsEquivalentTo(new List<int>() { 3, 4, 2, 1, 3, 3 });
+    await Assert.That(right).IsEquivalentTo(new List<int>() { 4, 3, 5, 3, 9, 3 });
+  }
+}