diff --git a/src/Nullinside.Api.TwitchBot.Tests/ChatRules/DoghypeTests.cs b/src/Nullinside.Api.TwitchBot.Tests/ChatRules/DoghypeTests.cs
new file mode 100644
index 0000000..8f8508b
--- /dev/null
+++ b/src/Nullinside.Api.TwitchBot.Tests/ChatRules/DoghypeTests.cs
@@ -0,0 +1,27 @@
+using Moq;
+
+using Nullinside.Api.Common.Twitch;
+using Nullinside.Api.TwitchBot.ChatRules;
+
+namespace Nullinside.Api.TwitchBot.Tests.ChatRules;
+
+/// <summary>
+///   Tests the <see cref="Dogehype" /> class.
+/// </summary>
+public class DogehypeTests : AChatRuleUnitTestBase<Dogehype> {
+  /// <summary>
+  ///   Tests the strings typed in chats.
+  /// </summary>
+  /// <param name="badString">The string that should fail.</param>
+  [Test]
+  [TestCase("Visit dogehype .biz com today and climb the Twitch rankings with ease! Whether you're just starting out or looking to take your stream to the next level, DogeHype has the tools you need to succeed.  @Axxq7ntz")]
+  public async Task TestKnownStrings(string badString) {
+    var rule = new Dogehype();
+    var botProxy = new Mock<ITwitchApiProxy>();
+    var chat = new TwitchChatMessage(true, badString, "123", "456");
+
+    // Process the message and assert that we fail the message.
+    bool result = await rule.Handle("123", botProxy.Object, chat, _db);
+    Assert.That(result, Is.False);
+  }
+}
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