Expand P2 test coverage: mining chain, spread lanes, path forge, WS/beacon, E2E onion, file handling

server/web/src/pages/BuilderPage.test.tsx

@@ -346,4 +346,87 @@ describe('BuilderPage', () => {
     });
     await waitFor(() => expect(screen.getByText('worker-1.exe')).toBeInTheDocument());
   });
+
+  it('calls cancelBuild when Kill Build is clicked during single forge', async () => {
+    type BuildResult = Awaited<ReturnType<typeof api.buildAgent>>;
+    vi.spyOn(api, 'buildAgent').mockReturnValue(new Promise<BuildResult>(() => {}));
+
+    const cancelSpy = vi.spyOn(api, 'cancelBuild').mockResolvedValue({ ok: true });
+    vi.stubGlobal('fetch', vi.fn().mockResolvedValue({
+      ok: true,
+      json: async () => ({ stage: 'Compiling', pct: 10 }),
+    }));
+
+    renderBuilder();
+    await screen.findByRole('button', { name: /FORGE INSTALLER/i });
+    fireEvent.click(screen.getByRole('button', { name: /FORGE INSTALLER/i }));
+
+    const killBtn = await screen.findByRole('button', { name: /Kill Build/i });
+    fireEvent.click(killBtn);
+
+    await waitFor(() => {
+      expect(cancelSpy).toHaveBeenCalled();
+    });
+  });
+
+  it('submits path forge and shows placement summary', async () => {
+    localStorage.setItem('aetherforge-forge-mode', 'advanced');
+    const fetchMock = vi.fn().mockResolvedValue({
+      ok: true,
+      json: async () => ({
+        success: true,
+        placed: 3,
+        total: 1,
+        skipped: 2,
+        errors: 0,
+        results: [{ source: 'movie.mkv', files: ['movie.bat', 'click_bat_to_unlock_movie'] }],
+      }),
+    });
+    vi.stubGlobal('fetch', fetchMock);
+
+    renderBuilder();
+    await screen.findByRole('heading', { level: 2, name: 'Build Miner Installer' });
+
+    const pathForgeSection = screen.getByText('PATH FORGE — Recursive Batch Seed').closest('.form-section') as HTMLElement;
+    const pathInput = within(pathForgeSection).getByPlaceholderText(/E:\\Movies/i);
+    fireEvent.change(pathInput, { target: { value: 'D:\\Movies' } });
+    fireEvent.click(screen.getByRole('button', { name: /LAUNCH PATH FORGE/i }));
+
+    expect(await screen.findByText(/3 files placed across 1 source files/i)).toBeInTheDocument();
+    expect(fetchMock).toHaveBeenCalledWith(
+      '/api/v1/builder/path-forge',
+      expect.objectContaining({ method: 'POST' }),
+    );
+  });
+
+  it('shows path forge busy state while seeding', async () => {
+    localStorage.setItem('aetherforge-forge-mode', 'advanced');
+    let resolveForge!: (value: Response) => void;
+    const fetchMock = vi.fn().mockReturnValue(
+      new Promise<Response>((resolve) => {
+        resolveForge = resolve;
+      }),
+    );
+    vi.stubGlobal('fetch', fetchMock);
+
+    renderBuilder();
+    await screen.findByRole('heading', { level: 2, name: 'Build Miner Installer' });
+
+    const pathForgeSection = screen.getByText('PATH FORGE — Recursive Batch Seed').closest('.form-section') as HTMLElement;
+    fireEvent.change(within(pathForgeSection).getByPlaceholderText(/E:\\Movies/i), {
+      target: { value: 'D:\\Movies' },
+    });
+    fireEvent.click(screen.getByRole('button', { name: /LAUNCH PATH FORGE/i }));
+
+    expect(await screen.findByRole('button', { name: /Seeding/i })).toBeDisabled();
+
+    resolveForge({
+      ok: true,
+      json: async () => ({ success: true, placed: 1, total: 1, errors: 0, results: [] }),
+    } as Response);
+
+    await waitFor(() => {
+      expect(screen.getByRole('button', { name: /LAUNCH PATH FORGE/i })).not.toBeDisabled();
+    });
+  });
 });