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
📜 Review details
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Review profile: ASSERTIVE
Plan: Pro
📒 Files selected for processing (1)
packages/ui-components/src/__tests__/PageHeader.test.ts(1 hunks)
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- GitHub Check: test
- GitHub Check: standard-tests (ubuntu-latest, test-js-bindings)
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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', '/');
});| 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); | ||
| }); | ||
| }); |
There was a problem hiding this comment.
🧹 Nitpick (assertive)
Consider enhancing breadcrumb verification.
While the test covers basic breadcrumb rendering, it could be more robust by explicitly verifying the order and total number of links.
Consider enhancing the test to verify the exact number and order of links:
const links = within(nav).getAllByRole('link');
+ // Verify we have the expected number of links (root + all breadcrumbs)
+ expect(links.length).toBe(1 + mockCrumbs.length);
+
expect(links[0]).toHaveAttribute('href', '/');
- mockCrumbs.forEach((crumb) => {
- expect(screen.getByRole('link', { name: crumb.label })).toHaveAttribute('href', crumb.href);
- });
+ // Verify each breadcrumb link in order
+ mockCrumbs.forEach((crumb, index) => {
+ expect(links[index + 1]).toHaveTextContent(crumb.label);
+ expect(links[index + 1]).toHaveAttribute('href', crumb.href);
+ });📝 Committable suggestion
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| it('renders the generated breadcrumbs', () => { | |
| render(PageHeader, { props: { title: mockTitle, pathname: mockPathname } }); | |
| const nav = screen.getByRole('navigation', { name: 'Default breadcrumb example' }); | |
| const links = within(nav).getAllByRole('link'); | |
| expect(links[0]).toHaveAttribute('href', '/'); | |
| mockCrumbs.forEach((crumb) => { | |
| expect(screen.getByRole('link', { name: crumb.label })).toHaveAttribute('href', crumb.href); | |
| }); | |
| }); | |
| it('renders the generated breadcrumbs', () => { | |
| render(PageHeader, { props: { title: mockTitle, pathname: mockPathname } }); | |
| const nav = screen.getByRole('navigation', { name: 'Default breadcrumb example' }); | |
| const links = within(nav).getAllByRole('link'); | |
| // Verify we have the expected number of links (root + all breadcrumbs) | |
| expect(links.length).toBe(1 + mockCrumbs.length); | |
| expect(links[0]).toHaveAttribute('href', '/'); | |
| // Verify each breadcrumb link in order | |
| mockCrumbs.forEach((crumb, index) => { | |
| expect(links[index + 1]).toHaveTextContent(crumb.label); | |
| expect(links[index + 1]).toHaveAttribute('href', crumb.href); | |
| }); | |
| }); |
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