chore: begin porting code from playground

src/StevesBot.Worker.Tests/.editorconfig

@@ -0,0 +1,4 @@
+[*.cs]
+dotnet_diagnostic.CA1515.severity = none
+dotnet_diagnostic.CA1707.severity = none
+dotnet_diagnostic.CA2201.severity = none

src/StevesBot.Worker.Tests/StevesBot.Worker.Tests.csproj

@@ -1,21 +1,41 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="coverlet.collector" Version="6.0.2" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
-    <PackageReference Include="xunit" Version="2.9.2" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2" />
+    <PackageReference Include="coverlet.collector" Version="6.0.4">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="coverlet.msbuild" Version="6.0.4">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="FluentAssertions" Version="7.2.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
+    <PackageReference Include="moq" Version="4.20.72" />
+    <PackageReference Include="RichardSzalay.MockHttp" Version="7.0.0" />
+    <PackageReference Include="xunit" Version="2.9.3" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.0" />
   </ItemGroup>
 
+  <PropertyGroup>
+    <CollectCoverage>true</CollectCoverage>
+    <CoverletOutput>./TestResults/Coverage/</CoverletOutput>
+    <CoverletOutputFormat>cobertura</CoverletOutputFormat>
+    <Include>[StevesBot.Worker]*</Include>
+    <ExcludeByFile>**/Program.cs,**/Worker.cs</ExcludeByFile>
+  </PropertyGroup>
+
+  <Target Name="GenerateHtmlCoverageReport" AfterTargets="GenerateCoverageResultAfterTest">
+    <Exec Command="reportgenerator -reports:./TestResults/Coverage/*.xml -targetdir:./TestResults/Coverage/Report/ -reporttypes:Html_Dark" />
+  </Target>
+
   <ItemGroup>
     <Using Include="Xunit" />
+    <Using Include="FluentAssertions" />
   </ItemGroup>
 
   <ItemGroup>

src/StevesBot.Worker.Tests/Unit/DiscordClientExceptionTests.cs

@@ -0,0 +1,37 @@
+namespace StevesBot.Worker.Tests.Unit;
+
+public class DiscordClientExceptionTests
+{
+  [Fact]
+  public void Constructor_WhenCalledWithoutParameters_ItShouldCreateInstance()
+  {
+    var exception = new DiscordClientException();
+
+    exception.Should().NotBeNull();
+    exception.Should().BeOfType<DiscordClientException>();
+  }
+
+  [Fact]
+  public void Constructor_WhenCalledWithMessage_ItShouldCreateInstance()
+  {
+    var message = "Test message";
+    var exception = new DiscordClientException(message);
+
+    exception.Should().NotBeNull();
+    exception.Should().BeOfType<DiscordClientException>();
+    exception.Message.Should().Be(message);
+  }
+
+  [Fact]
+  public void Constructor_WhenCalledWithMessageAndInnerException_ItShouldCreateInstance()
+  {
+    var message = "Test message";
+    var innerException = new Exception("Inner exception");
+    var exception = new DiscordClientException(message, innerException);
+
+    exception.Should().NotBeNull();
+    exception.Should().BeOfType<DiscordClientException>();
+    exception.Message.Should().Be(message);
+    exception.InnerException.Should().Be(innerException);
+  }
+}

src/StevesBot.Worker.Tests/Unit/DiscordClientOptionsTests.cs

@@ -0,0 +1,37 @@
+namespace StevesBot.Worker.Tests.Unit;
+
+public class DiscordClientOptionsTests
+{
+  [Fact]
+  public void Constructor_WhenCalledWithoutParameters_ItShouldCreateInstance()
+  {
+    var options = new DiscordClientOptions();
+
+    options.Should().NotBeNull();
+    options.Should().BeOfType<DiscordClientOptions>();
+    options.ApiUrl.Should().Be(string.Empty);
+    options.AppToken.Should().Be(string.Empty);
+    options.Intents.Should().Be(0);
+  }
+
+  [Fact]
+  public void Constructor_WhenCalledWithParameters_ItShouldCreateInstance()
+  {
+    var apiUrl = "https://api.example.com";
+    var appToken = "test-token";
+    var intents = 123;
+
+    var options = new DiscordClientOptions
+    {
+      ApiUrl = apiUrl,
+      AppToken = appToken,
+      Intents = intents
+    };
+
+    options.Should().NotBeNull();
+    options.Should().BeOfType<DiscordClientOptions>();
+    options.ApiUrl.Should().Be(apiUrl);
+    options.AppToken.Should().Be(appToken);
+    options.Intents.Should().Be(intents);
+  }
+}

src/StevesBot.Worker.Tests/UnitTest1.cs

@@ -1,10 +0,0 @@
-namespace StevesBot.Worker.Tests;
-
-public class UnitTest1
-{
-  [Fact]
-  public void Test1()
-  {
-
-  }
-}

src/StevesBot.Worker.Tests/Usings.cs

@@ -0,0 +1 @@
+global using StevesBot.Worker.Discord;