refactor: reorganize solution for better multi-project support/management

src/tests/StevesBot.Worker.Tests/Unit/HeartbeatDiscordEventTests.cs

@@ -0,0 +1,17 @@
+namespace StevesBot.Worker.Tests.Unit;
+
+public class HeartbeatDiscordEventTests
+{
+  [Theory]
+  [InlineData(null)]
+  [InlineData(1)]
+  public void Constructor_WhenCalled_ItShouldInitializeProperties(int? sequence)
+  {
+    var heartbeatEvent = new HeartbeatDiscordEvent(sequence);
+
+    heartbeatEvent.OpCode.Should().Be(1);
+    heartbeatEvent.Sequence.Should().Be(sequence);
+    heartbeatEvent.Type.Should().BeNull();
+    heartbeatEvent.Data.Should().BeNull();
+  }
+}