From 2ee20a60728a8d4ceaf69c28249495023da1a9f9 Mon Sep 17 00:00:00 2001
From: Vincent Koc <vincentkoc@ieee.org>
Date: Mon, 16 Mar 2026 02:29:11 -0700
Subject: [PATCH] Tests: cover changed extension detection

---
 test/scripts/test-extension.test.ts | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/test/scripts/test-extension.test.ts b/test/scripts/test-extension.test.ts
index 1ab4a68deb8..63561cb5151 100644
--- a/test/scripts/test-extension.test.ts
+++ b/test/scripts/test-extension.test.ts
@@ -1,7 +1,10 @@
 import { execFileSync } from "node:child_process";
 import path from "node:path";
 import { describe, expect, it } from "vitest";
-import { resolveExtensionTestPlan } from "../../scripts/test-extension.mjs";
+import {
+  detectChangedExtensionIds,
+  resolveExtensionTestPlan,
+} from "../../scripts/test-extension.mjs";
 
 const scriptPath = path.join(process.cwd(), "scripts", "test-extension.mjs");
 
@@ -47,4 +50,15 @@ describe("scripts/test-extension.mjs", () => {
     expect(plan.extensionId).toBe("slack");
     expect(plan.extensionDir).toBe("extensions/slack");
   });
+
+  it("maps changed paths back to extension ids", () => {
+    const extensionIds = detectChangedExtensionIds([
+      "extensions/slack/src/channel.ts",
+      "src/line/message.test.ts",
+      "extensions/firecrawl/package.json",
+      "src/not-a-plugin/file.ts",
+    ]);
+
+    expect(extensionIds).toEqual(["firecrawl", "line", "slack"]);
+  });
 });