Test pageHeader #1716
Test pageHeader #1716
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WalkthroughA new test suite for the Changes
Sequence Diagram(s)sequenceDiagram
participant TestSuite
participant PageHeader
participant generateBreadcrumbs
TestSuite->>PageHeader: Render with props (title, pathname)
PageHeader->>generateBreadcrumbs: Call with pathname
generateBreadcrumbs-->>PageHeader: Return mocked breadcrumb data
PageHeader-->>TestSuite: Render title and breadcrumbs in DOM
TestSuite->>PageHeader: Assert title and breadcrumb links are correct
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Actionable comments posted: 2
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packages/ui-components/src/__tests__/PageHeader.test.ts(1 hunks)
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- GitHub Check: test
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🔇 Additional comments (5)
packages/ui-components/src/__tests__/PageHeader.test.ts (5)
1-4: Well-structured imports for testing environment.The imports correctly set up the testing environment with Svelte Testing Library and Vitest. Good job importing only what's needed.
5-9: Good mock implementation for breadcrumbs utility.The mock implementation properly isolates the component being tested from its dependencies. The approach of mocking the module and then importing the mocked function is clean and effective.
11-22: Well-organized test setup with clear mock data.The test suite is well-structured with descriptive mock data that makes the tests easy to understand. The
beforeEachhook properly resets mocks between tests, which is essential for test isolation.
24-28: Clear title rendering verification.This test effectively verifies that the component renders the title correctly. The use of a data-testid attribute makes the test resilient to UI changes.
30-35: Good verification of integration with breadcrumb generation.The test properly verifies that the component calls the breadcrumb utility with the correct parameters, validating the integration between components.
| describe('PageHeader.svelte', () => { | ||
| const mockTitle = 'Test Page'; | ||
| const mockPathname = '/test/path'; | ||
| const mockCrumbs = [ | ||
| { label: 'Test', href: '/test' }, | ||
| { label: 'Path', href: '/test/path' } | ||
| ]; | ||
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| beforeEach(() => { | ||
| vi.clearAllMocks(); | ||
| vi.mocked(generateBreadcrumbs).mockReturnValue(mockCrumbs); | ||
| }); | ||
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| it('renders the title correctly', () => { | ||
| render(PageHeader, { props: { title: mockTitle, pathname: mockPathname } }); | ||
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| expect(screen.getByTestId('breadcrumb-page-title')).toHaveTextContent(mockTitle); | ||
| }); | ||
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| it('calls generateBreadcrumbs with the correct pathname', () => { | ||
| render(PageHeader, { props: { title: mockTitle, pathname: mockPathname } }); | ||
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| expect(generateBreadcrumbs).toHaveBeenCalledTimes(1); | ||
| expect(generateBreadcrumbs).toHaveBeenCalledWith(mockPathname); | ||
| }); | ||
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| it('renders the generated breadcrumbs', () => { | ||
| render(PageHeader, { props: { title: mockTitle, pathname: mockPathname } }); | ||
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| const nav = screen.getByRole('navigation', { name: 'Default breadcrumb example' }); | ||
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| const links = within(nav).getAllByRole('link'); | ||
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| expect(links[0]).toHaveAttribute('href', '/'); | ||
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| mockCrumbs.forEach((crumb) => { | ||
| expect(screen.getByRole('link', { name: crumb.label })).toHaveAttribute('href', crumb.href); | ||
| }); | ||
| }); | ||
| }); |
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🧹 Nitpick (assertive)
Consider adding tests for edge cases.
The current tests cover the happy path but don't test any edge cases or error handling.
Consider adding tests for scenarios like:
- Empty breadcrumbs array
- Very long breadcrumb paths
- Special characters in breadcrumb labels
Example:
it('handles empty breadcrumbs gracefully', () => {
vi.mocked(generateBreadcrumbs).mockReturnValue([]);
render(PageHeader, { props: { title: mockTitle, pathname: mockPathname } });
const nav = screen.getByRole('navigation', { name: 'Default breadcrumb example' });
const links = within(nav).getAllByRole('link');
// Should only have the root link
expect(links.length).toBe(1);
expect(links[0]).toHaveAttribute('href', '/');
});There was a problem hiding this comment.
@hardingjam Great! I can see you've implemented the test for empty breadcrumbs. The implementation looks good with proper verification that the component gracefully handles this edge case. Thanks for making this improvement to the test coverage.
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Actionable comments posted: 1
♻️ Duplicate comments (1)
packages/ui-components/src/__tests__/PageHeader.test.ts (1)
53-63: 🧹 Nitpick (assertive)Consider additional edge cases mentioned in previous review.
While you've addressed the empty breadcrumbs scenario, there are other edge cases mentioned in the previous review that could further strengthen your test suite.
Consider adding tests for:
- Very long breadcrumb paths
- Special characters in breadcrumb labels
For example:
it('handles very long breadcrumb paths', () => { const longPathCrumbs = Array(10).fill(0).map((_, i) => ({ label: `Level ${i + 1}`, href: `/level/${'sub/'.repeat(i)}${i + 1}` })); vi.mocked(generateBreadcrumbs).mockReturnValue(longPathCrumbs); render(PageHeader, { props: { title: mockTitle, pathname: mockPathname } }); const nav = screen.getByRole('navigation', { name: 'Default breadcrumb example' }); const links = within(nav).getAllByRole('link'); expect(links.length).toBe(1 + longPathCrumbs.length); // Verify the last breadcrumb is rendered correctly expect(links[links.length - 1]).toHaveTextContent('Level 10'); });
📜 Review details
Configuration used: CodeRabbit UI
Review profile: ASSERTIVE
Plan: Pro
📒 Files selected for processing (1)
packages/ui-components/src/__tests__/PageHeader.test.ts(1 hunks)
🔇 Additional comments (3)
packages/ui-components/src/__tests__/PageHeader.test.ts (3)
1-10: Well-structured test setup with proper mocking pattern.The imports and mock setup follow best practices for Vitest. Good job on placing the mock declaration before importing the actual function to ensure the mock is used throughout the tests.
24-51: Good test coverage for core functionality.The tests effectively verify the main features of the PageHeader component:
- Title rendering
- Integration with the breadcrumb generation utility
- Correct navigation structure with proper link attributes
The breadcrumb verification is thorough, checking both the count and specific attributes of each link in order.
53-63: Good addition of empty breadcrumbs test case.This test handles the edge case of an empty breadcrumbs array gracefully, verifying that the component still renders properly with just the root link.
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