diff --git a/src/app/(app)/collection-map/page.test.ts b/src/app/(app)/collection-map/page.test.ts
index fa24e4d..496be13 100644
--- a/src/app/(app)/collection-map/page.test.ts
+++ b/src/app/(app)/collection-map/page.test.ts
@@ -1,3 +1,6 @@
+// @vitest-environment node
+import fs from "fs";
+import path from "path";
 import { describe, expect, it } from "vitest";
 import { splitSupplierBucket } from "./pin-model";
 
@@ -62,3 +65,34 @@ describe("splitSupplierBucket", () => {
     expect(assignedByDriver.get("u-1")?.readyAll).toBe(false);
   });
 });
+
+describe("collection-map toolbar shape contract", () => {
+  // The toolbar lives in page.tsx. We snapshot the literal labels that must
+  // remain visible (date + quick chips + Refresh + overlays) and the labels
+  // that must NOT come back (the deleted filter chips + Drivers card).
+  // These are static source-text assertions: a future PR that re-adds the
+  // filter chips won't pass the pipeline, even if the chips "look right".
+  const src = fs.readFileSync(path.resolve(__dirname, "./page.tsx"), "utf8");
+
+  it("renders the locked toolbar labels", () => {
+    // Quick-chip labels.
+    expect(src).toMatch(/Today/);
+    expect(src).toMatch(/Tomorrow/);
+    expect(src).toMatch(/\+3 days/);
+    expect(src).toMatch(/Next week/);
+    // Overlay buttons + manual refresh.
+    expect(src).toMatch(/Traffic/);
+    expect(src).toMatch(/Fullscreen|Exit fullscreen|Minimize2/);
+    expect(src).toMatch(/Refresh/);
+  });
+
+  it("does not re-introduce the deleted filter chips", () => {
+    // State + JSX for the deleted chips — must not silently come back.
+    expect(src).not.toMatch(/setStatusFilter|statusFilter|StatusFilter/);
+    expect(src).not.toMatch(/setReadyFilter|readyFilter/);
+    // Search input + placeholder.
+    expect(src).not.toMatch(/Search PO, supplier/);
+    // Drivers sidebar card heading.
+    expect(src).not.toMatch(/>\s*Drivers\s*</);
+  });
+});