test(commitpulse): add massive scaling coverage

app/generator/components/sections/CommitPulseSection.massive-scaling.test.tsx

@@ -0,0 +1,83 @@
+import '@testing-library/jest-dom/vitest';
+import { render, screen, fireEvent } from '@testing-library/react';
+import { describe, it, expect, vi } from 'vitest';
+
+import { CommitPulseSection } from './CommitPulseSection';
+
+vi.mock('@/hooks/useDebounce', () => ({
+  useDebounce: (value: string) => value,
+}));
+
+global.fetch = vi.fn(() =>
+  Promise.resolve({
+    ok: true,
+    json: async () => ({
+      exists: true,
+      login: 'massive-user',
+      name: 'Massive User',
+      avatar_url: 'https://example.com/avatar.png',
+      public_repos: 99999,
+      stats: {
+        currentStreak: 1825,
+        longestStreak: 3650,
+        totalContributions: 9999999,
+      },
+    }),
+  })
+) as unknown as typeof fetch;
+
+describe('CommitPulseSection Massive Data Sets and Extreme High Bounds Scaling', () => {
+  const defaultProps = {
+    githubUsername: 'massive-user',
+    showCommitPulse: true,
+    commitPulseAccent: '#00ffaa',
+
+    onGithubUsernameChange: vi.fn(),
+    onShowCommitPulseChange: vi.fn(),
+    onCommitPulseAccentChange: vi.fn(),
+  };
+
+  it('renders successfully with massive contribution values', () => {
+    render(<CommitPulseSection {...defaultProps} />);
+
+    expect(screen.getByText(/CommitPulse Badge/i)).toBeInTheDocument();
+  });
+
+  it('handles extremely long username input without crashing', () => {
+    render(<CommitPulseSection {...defaultProps} />);
+
+    const input = screen.getByPlaceholderText(/e.g. OmkarArdekar12/i);
+
+    fireEvent.change(input, {
+      target: {
+        value: 'a'.repeat(39),
+      },
+    });
+
+    expect(input).toBeInTheDocument();
+  });
+
+  it('preserves layout structure during heavy rendering', () => {
+    const { container } = render(<CommitPulseSection {...defaultProps} />);
+
+    expect(container.firstChild).toBeInTheDocument();
+  });
+
+  it('renders large scale UI within acceptable performance limits', () => {
+    const start = performance.now();
+
+    render(<CommitPulseSection {...defaultProps} />);
+
+    const end = performance.now();
+
+    expect(end - start).toBeLessThan(2000);
+  });
+
+  it('maintains stable interactive controls under extreme values', () => {
+    render(<CommitPulseSection {...defaultProps} />);
+
+    expect(screen.getByRole('switch')).toBeInTheDocument();
+
+    expect(screen.getByLabelText(/Toggle CommitPulse badge/i)).toBeVisible();
+  });
+});