diff --git a/extensions/discord/src/shared-interactive.test.ts b/extensions/discord/src/shared-interactive.test.ts
new file mode 100644
index 00000000000..566ec746380
--- /dev/null
+++ b/extensions/discord/src/shared-interactive.test.ts
@@ -0,0 +1,43 @@
+import { describe, expect, it } from "vitest";
+import { buildDiscordInteractiveComponents } from "./shared-interactive.js";
+
+describe("buildDiscordInteractiveComponents", () => {
+  it("maps shared buttons and selects into Discord component blocks", () => {
+    expect(
+      buildDiscordInteractiveComponents({
+        blocks: [
+          {
+            type: "buttons",
+            buttons: [
+              { label: "Approve", value: "approve", style: "success" },
+              { label: "Reject", value: "reject", style: "danger" },
+            ],
+          },
+          {
+            type: "select",
+            placeholder: "Pick one",
+            options: [{ label: "Alpha", value: "alpha" }],
+          },
+        ],
+      }),
+    ).toEqual({
+      blocks: [
+        {
+          type: "actions",
+          buttons: [
+            { label: "Approve", style: "success", callbackData: "approve" },
+            { label: "Reject", style: "danger", callbackData: "reject" },
+          ],
+        },
+        {
+          type: "actions",
+          select: {
+            type: "string",
+            placeholder: "Pick one",
+            options: [{ label: "Alpha", value: "alpha" }],
+          },
+        },
+      ],
+    });
+  });
+});