feat: ✨ Finish lecture

Tests/Tests.csproj

@@ -22,4 +22,8 @@
         </PackageReference>
     </ItemGroup>
 
+    <ItemGroup>
+      <ProjectReference Include="..\Lecture\Lecture.csproj" />
+    </ItemGroup>
+
 </Project>

Tests/UnitTest1.cs

@@ -2,8 +2,20 @@ namespace Tests;
 
 public class UnitTest1
 {
-    [Fact]
-    public void Test1()
+    [Theory]
+    [InlineData("123456", 123456)]
+    [InlineData("214213", 214213)]
+    [InlineData("987621", 987621)]
+    public void TestStringToInt(string a, int expected)
     {
+        Assert.Equal(Lecture.Exercises.Conversion.StringToInt(a), expected);
+    }
+
+    [Theory]
+    [InlineData("12345", typeof(IndexOutOfRangeException))]
+    [InlineData("123A56", typeof(FormatException))]
+    public void TestStringToIntException(string value, Type expected)
+    {
+        Assert.Throws(expected, () => Lecture.Exercises.Conversion.StringToInt(value));
     }
 }

Tests/Usings.cs

@@ -1 +1,2 @@
 global using Xunit;
+global using Lecture;