diff --git a/src/app/(app)/collection-map/page.test.ts b/src/app/(app)/collection-map/page.test.ts
index 66703b1..981f0de 100644
--- a/src/app/(app)/collection-map/page.test.ts
+++ b/src/app/(app)/collection-map/page.test.ts
@@ -92,6 +92,11 @@ describe("collection-map toolbar shape contract", () => {
     expect(src).not.toMatch(/setReadyFilter|readyFilter/);
     expect(src).not.toMatch(/Search PO, supplier/);
     expect(src).not.toMatch(/>\s*Drivers\s*</);
+    // Bottom-list card removed in the v3 sidebar redesign.
+    expect(src).not.toMatch(/Today's stops/);
+    // NOTE: "Reassign" still legitimately appears in StopPopupBody
+    // ("Reassign driver" / "Assign driver") so we don't assert on that
+    // string here — the popup predates the redesign and remains.
   });
 
   it("does not re-introduce the date state or date bounds in fetchRows", () => {
@@ -102,3 +107,87 @@ describe("collection-map toolbar shape contract", () => {
     expect(src).not.toMatch(/assigned_at <= "\$\{date\}T23:59:59\.999Z"/);
   });
 });
+
+describe("collection-map v3 sidebar contract", () => {
+  // The sidebar split during Task 3 means: page.tsx owns the *composition*
+  // (Legend → DriverCardSection → UnassignedCompactCard → MissingCoordsCard)
+  // and the assign-dialog wire-up. sidebar.tsx owns the inner subcomponents
+  // (DriverCard, CountsStrip, StopRow, LegendCard, MissingCoordsCard,
+  // UnassignedCompactCard). We snapshot both files so the assertions
+  // target the right module.
+  const pageSrc = fs.readFileSync(path.resolve(__dirname, "./page.tsx"), "utf8");
+  const sidebarSrc = fs.readFileSync(path.resolve(__dirname, "./sidebar.tsx"), "utf8");
+
+  it("imports aggregateDriverStatus from pin-model", () => {
+    expect(pageSrc).toMatch(/aggregateDriverStatus[\s\S]*?from\s+["']\.\/pin-model["']/);
+  });
+
+  it("renders the sidebar in the order: Legend → Driver cards → Unassigned → Missing coords", () => {
+    const legendIdx = pageSrc.indexOf("<LegendCard");
+    const driversIdx = pageSrc.indexOf("<DriverCardSection");
+    const unassignedIdx = pageSrc.indexOf("<UnassignedCompactCard");
+    const missingIdx = pageSrc.indexOf("<MissingCoordsCard");
+    expect(legendIdx).toBeGreaterThan(-1);
+    expect(driversIdx).toBeGreaterThan(legendIdx);
+    expect(unassignedIdx).toBeGreaterThan(driversIdx);
+    expect(missingIdx).toBeGreaterThan(unassignedIdx);
+  });
+
+  it("caps driver cards at 3 unless expanded", () => {
+    expect(sidebarSrc).toMatch(/driversWithItems\.slice\(0,\s*3\)/);
+    expect(sidebarSrc).toMatch(/Show all \(/);
+  });
+
+  it("hides the UnassignedCompactCard when there are no unassigned items", () => {
+    // Gate is the `> 0` filter — assert it shows up in page.tsx (the gate lives there).
+    expect(pageSrc).toMatch(/items\.filter\(\(it\)\s*=>\s*!it\.drv_id\)\.length\s*>\s*0/);
+    // Copy text lives in sidebar.tsx.
+    expect(sidebarSrc).toMatch(/unassigned stop/);
+  });
+
+  it("uses green pill classes for collected per-stop rows", () => {
+    expect(sidebarSrc).toMatch(/bg-emerald-100 text-emerald-900 border-emerald-300/);
+  });
+
+  it("uses amber pill classes for waiting per-stop rows", () => {
+    expect(sidebarSrc).toMatch(/bg-amber-100 text-amber-900 border-amber-300/);
+  });
+
+  it("uses blue pill classes for ready per-stop rows", () => {
+    expect(sidebarSrc).toMatch(/bg-blue-100 text-blue-900 border-blue-300/);
+  });
+
+  it("renders the popup 'X of Y collected' line", () => {
+    expect(pageSrc).toMatch(/\bcollected\b[^<]*of[^<]*collected/); // "X of Y collected"
+    expect(pageSrc).toMatch(/text-emerald-700/); // popup emerald color
+  });
+
+  it("does NOT add a green Leaflet pin variant", () => {
+    // The two-pin model stays intact: blue letter + amber ✓/✕ only.
+    expect(pageSrc).not.toMatch(/driverLetterPin.*emerald|emerald.*driverLetterPin/);
+    expect(sidebarSrc).not.toMatch(/driverLetterPin.*emerald|emerald.*driverLetterPin/);
+    // No new pin factory introducing a third color.
+    expect(pageSrc).not.toMatch(/emerald-(?:500|600|700)\b.*pin|pin.*emerald-(?:500|600|700)\b/);
+    expect(sidebarSrc).not.toMatch(/emerald-(?:500|600|700)\b.*pin|pin.*emerald-(?:500|600|700)\b/);
+  });
+
+  it("uses the existing driversWithItems ordering without re-sorting", () => {
+    // driverLabelFor is alphabetical; the top 3 cap does not re-sort.
+    expect(sidebarSrc).toMatch(/driverLabelFor\(driversWithItems,/);
+  });
+
+  it("uses the existing openAssignDialog for sidebar row clicks", () => {
+    expect(pageSrc).toMatch(/onOpenAssign=\{openAssignDialog\}/);
+  });
+
+  it("preserves the assign-dialog mount with phase-2 props", () => {
+    expect(pageSrc).toMatch(/requireReadyForCollection/);
+    expect(pageSrc).toMatch(/readyForCollection=\{assignDialog\.row\?\.ready_for_collection\s*\?\?\s*false\}/);
+  });
+
+  it("preserves the existing toolbar (Refresh + Traffic + Fullscreen)", () => {
+    expect(pageSrc).toMatch(/Refresh/);
+    expect(pageSrc).toMatch(/Traffic/);
+    expect(pageSrc).toMatch(/Fullscreen|Exit fullscreen|Minimize2/);
+  });
+});