Day03: Statement, input data and failing test

AdventOfCode2018.Tests/AdventOfCode2018.Tests.csproj

@@ -58,6 +58,7 @@
   <ItemGroup>
     <Compile Include="Day01_Tests.cs" />
     <Compile Include="Day02_Tests.cs" />
+    <Compile Include="Day03_Tests.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <ItemGroup>

AdventOfCode2018.Tests/Day03_Tests.cs

@@ -0,0 +1,22 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace AdventOfCode2018.Tests
+{
+    [TestClass()]
+    public class Day03_Tests
+    {
+        [TestMethod()]
+        public void ResolveDay03__Test()
+        {
+            Day03 day03 = new Day03();
+
+            string result = day03.ResolveDay03(new string[] {
+                "#1 @ 1,3: 4x4",
+                "#2 @ 3,1: 4x4",
+                "#3 @ 5,5: 2x2",
+            });
+
+            Assert.AreEqual("4", result);
+        }
+    }
+}