day15 solution

day15/day15.test/UnitTestProblem.cs

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+namespace day15.test;
+using FluentAssertions;
+public class UnitTestProblem
+{
+    [Fact]
+    public void TestProblem1()
+    {
+        var problem = new Problem();
+        problem.ResolvePart1("testdata.txt", 10);
+
+        problem.Result1.Should().Be("26");
+    }
+
+    [Fact]
+    public void TestProblem2()
+    {
+        var problem = new Problem();
+        problem.ResolvePart2("testdata.txt", 20);
+
+        problem.Result2.Should().Be("56000011");
+    }
+}

day15/day15.test/Usings.cs

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+global using Xunit;

day15/day15.test/day15.test.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="../day15/day15.csproj" />
+    <Content Include="testdata.txt">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory> 
+    </Content>
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="FluentAssertions" Version="6.8.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.3.2" />
+    <PackageReference Include="xunit" Version="2.4.2" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="coverlet.collector" Version="3.1.2">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+  </ItemGroup>
+
+</Project>

day15/day15.test/testdata.txt

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+Sensor at x=2, y=18: closest beacon is at x=-2, y=15
+Sensor at x=9, y=16: closest beacon is at x=10, y=16
+Sensor at x=13, y=2: closest beacon is at x=15, y=3
+Sensor at x=12, y=14: closest beacon is at x=10, y=16
+Sensor at x=10, y=20: closest beacon is at x=10, y=16
+Sensor at x=14, y=17: closest beacon is at x=10, y=16
+Sensor at x=8, y=7: closest beacon is at x=2, y=10
+Sensor at x=2, y=0: closest beacon is at x=2, y=10
+Sensor at x=0, y=11: closest beacon is at x=2, y=10
+Sensor at x=20, y=14: closest beacon is at x=25, y=17
+Sensor at x=17, y=20: closest beacon is at x=21, y=22
+Sensor at x=16, y=7: closest beacon is at x=15, y=3
+Sensor at x=14, y=3: closest beacon is at x=15, y=3
+Sensor at x=20, y=1: closest beacon is at x=15, y=3