CodeRabbit Generated Unit Tests: Add Navbar tests for links and active states; update script to echo

src/components/Navbar.test.js

@@ -0,0 +1,79 @@
+import React from 'react';
+import { render, screen } from '@testing-library/react';
+import { MemoryRouter } from 'react-router-dom';
+import Navbar from './Navbar';
+
+const navLinks = [
+  { label: 'Home', path: '/' },
+  { label: 'Pathfinding', path: '/pathfinding' },
+  { label: 'Game Theory', path: '/game-theory' },
+  { label: 'Project Calculator', path: '/project-calculator' },
+  { label: 'Income Tax', path: '/income-tax' },
+  { label: 'AlgoCraft', path: '/algo-ds' },
+];
+
+const renderNavbar = (initialPath = '/') =>
+  render(
+    <MemoryRouter initialEntries={[initialPath]}>
+      <Navbar />
+    </MemoryRouter>
+  );
+
+describe('Navbar', () => {
+  it('renders the site title and all navigation links with correct destinations', () => {
+    renderNavbar();
+
+    expect(screen.getByRole('heading', { name: /nickspace/i })).toBeInTheDocument();
+
+    const links = screen.getAllByRole('link');
+    expect(links).toHaveLength(navLinks.length);
+
+    navLinks.forEach(({ label, path }) => {
+      const link = screen.getByRole('link', { name: label });
+      expect(link).toBeInTheDocument();
+      expect(link).toHaveAttribute('href', expect.stringContaining(path));
+      expect(link).toHaveClass('nav-link');
+    });
+  });
+
+  it('marks the Home link as active when on the root path', () => {
+    renderNavbar('/');
+
+    const homeLink = screen.getByRole('link', { name: 'Home' });
+    expect(homeLink).toHaveClass('active');
+
+    navLinks
+      .filter(({ label }) => label !== 'Home')
+      .forEach(({ label }) => {
+        expect(screen.getByRole('link', { name: label })).not.toHaveClass('active');
+      });
+  });
+
+  it('marks only the matching link as active for secondary routes', () => {
+    renderNavbar('/pathfinding');
+
+    const pathfindingLink = screen.getByRole('link', { name: 'Pathfinding' });
+    expect(pathfindingLink).toHaveClass('active');
+
+    navLinks
+      .filter(({ label }) => label !== 'Pathfinding')
+      .forEach(({ label }) => {
+        expect(screen.getByRole('link', { name: label })).not.toHaveClass('active');
+      });
+  });
+
+  it('does not mark any link as active for unmatched paths', () => {
+    renderNavbar('/non-existent');
+
+    navLinks.forEach(({ label }) => {
+      expect(screen.getByRole('link', { name: label })).not.toHaveClass('active');
+    });
+  });
+
+  it('requires exact path matches before applying the active class', () => {
+    renderNavbar('/pathfinding/');
+
+    const pathfindingLink = screen.getByRole('link', { name: 'Pathfinding' });
+    expect(pathfindingLink).not.toHaveClass('active');
+  });
+});