test(extensions): dedupe bundled entry smoke tests

test/helpers/bundled-channel-entry.ts

@@ -0,0 +1,38 @@
+import { expect, it } from "vitest";
+
+type BundledChannelEntry = {
+  id: string;
+  kind?: string;
+  name: string;
+};
+
+type BundledChannelSetupEntry = {
+  kind?: string;
+  loadSetupPlugin?: unknown;
+};
+
+export function assertBundledChannelEntries(params: {
+  entry: BundledChannelEntry;
+  expectedId: string;
+  expectedName: string;
+  setupEntry: BundledChannelSetupEntry;
+  channelMessage?: string;
+  setupMessage?: string;
+}) {
+  it(
+    params.channelMessage ?? "declares the channel plugin without importing the broad api barrel",
+    () => {
+      expect(params.entry.kind).toBe("bundled-channel-entry");
+      expect(params.entry.id).toBe(params.expectedId);
+      expect(params.entry.name).toBe(params.expectedName);
+    },
+  );
+
+  it(
+    params.setupMessage ?? "declares the setup plugin without importing the broad api barrel",
+    () => {
+      expect(params.setupEntry.kind).toBe("bundled-channel-setup-entry");
+      expect(typeof params.setupEntry.loadSetupPlugin).toBe("function");
+    },
+  );
+}