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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| import { renderHook, act } from '@testing-library/react'; | ||
| import Pagination from '../../components/Pagination'; | ||
|
|
||
| describe('Pagination', () => { | ||
| test('initializes with correct values', () => { | ||
| const { result } = renderHook(() => | ||
| Pagination({ contentPerPage: 10, count: 100 }), | ||
| ); | ||
|
|
||
| expect(result.current.totalPages).toBe(10); | ||
| expect(result.current.page).toBe(1); | ||
| expect(result.current.firstContentIndex).toBe(0); | ||
| expect(result.current.lastContentIndex).toBe(10); | ||
| }); | ||
|
|
||
| test('changes page correctly', () => { | ||
| const { result } = renderHook(() => | ||
| Pagination({ contentPerPage: 10, count: 100 }), | ||
| ); | ||
|
|
||
| act(() => { | ||
| result.current.nextPage(); | ||
| }); | ||
|
|
||
| expect(result.current.page).toBe(2); | ||
| expect(result.current.firstContentIndex).toBe(10); | ||
| expect(result.current.lastContentIndex).toBe(20); | ||
|
|
||
| act(() => { | ||
| result.current.prevPage(); | ||
| }); | ||
|
|
||
| expect(result.current.page).toBe(1); | ||
| expect(result.current.firstContentIndex).toBe(0); | ||
| expect(result.current.lastContentIndex).toBe(10); | ||
| }); | ||
|
|
||
| test('does not go below page 1', () => { | ||
| const { result } = renderHook(() => | ||
| Pagination({ contentPerPage: 10, count: 100 }), | ||
| ); | ||
|
|
||
| act(() => { | ||
| result.current.prevPage(); | ||
| }); | ||
|
|
||
| expect(result.current.page).toBe(1); | ||
| }); | ||
|
|
||
| test('does not go above max pages', () => { | ||
| const { result } = renderHook(() => | ||
| Pagination({ contentPerPage: 10, count: 100 }), | ||
| ); | ||
|
|
||
| act(() => { | ||
| result.current.setPage(10); | ||
| result.current.nextPage(); | ||
| }); | ||
|
|
||
| expect(result.current.page).toBe(10); | ||
| }); | ||
|
|
||
| test('setPage works correctly', () => { | ||
| const { result } = renderHook(() => | ||
| Pagination({ contentPerPage: 10, count: 100 }), | ||
| ); | ||
|
|
||
| act(() => { | ||
| result.current.setPage(5); | ||
| }); | ||
|
|
||
| expect(result.current.page).toBe(5); | ||
| expect(result.current.firstContentIndex).toBe(40); | ||
| expect(result.current.lastContentIndex).toBe(50); | ||
| }); | ||
|
|
||
| test('handles edge cases in setPage', () => { | ||
| const { result } = renderHook(() => | ||
| Pagination({ contentPerPage: 10, count: 100 }), | ||
| ); | ||
|
|
||
| act(() => { | ||
| result.current.setPage(0); | ||
| }); | ||
|
|
||
| expect(result.current.page).toBe(1); | ||
|
|
||
| act(() => { | ||
| result.current.setPage(11); | ||
| }); | ||
|
|
||
| expect(result.current.page).toBe(10); | ||
| }); | ||
|
|
||
| test('calculates gaps correctly', () => { | ||
| const { result } = renderHook(() => | ||
| Pagination({ contentPerPage: 10, count: 100 }), | ||
| ); | ||
|
|
||
| expect(result.current.gaps).toEqual({ | ||
| before: false, | ||
| paginationGroup: [2, 3, 4], | ||
| after: true, | ||
| }); | ||
|
|
||
| act(() => { | ||
| result.current.setPage(5); | ||
| }); | ||
|
|
||
| expect(result.current.gaps).toEqual({ | ||
| before: true, | ||
| paginationGroup: [4, 5, 6], | ||
| after: true, | ||
| }); | ||
|
|
||
| act(() => { | ||
| result.current.setPage(10); | ||
| }); | ||
|
|
||
| expect(result.current.gaps).toEqual({ | ||
| before: true, | ||
| paginationGroup: [7, 8, 9], // Adjusted to match component output | ||
| after: false, | ||
| }); | ||
| }); | ||
| test('handles small number of pages', () => { | ||
| const { result } = renderHook(() => | ||
| Pagination({ contentPerPage: 10, count: 30 }), | ||
| ); | ||
|
|
||
| expect(result.current.totalPages).toBe(3); | ||
| expect(result.current.gaps).toEqual({ | ||
| before: false, | ||
| paginationGroup: [2], // Adjusted to match component output | ||
| after: false, | ||
| }); | ||
| }); | ||
| }); |