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| 1 | +import React from 'react'; |
| 2 | +import { render, screen, fireEvent } from '@testing-library/react'; |
| 3 | +import '@testing-library/jest-dom'; |
| 4 | + |
| 5 | +import { CarouselSlideDots } from '../CarouselSliderDot'; |
| 6 | +import { CarouselContext } from '../../context/CarouselContext'; |
| 7 | +import type { CarouselContextType } from '../../types'; |
| 8 | +import { initialCarouselContextValues } from '../../constants'; |
| 9 | + |
| 10 | +jest.mock('../../../translation/useTranslationWithFallback', () => ({ |
| 11 | + useTranslationWithFallback: () => ({ |
| 12 | + t: (key: string) => { |
| 13 | + if (key === 'carouselSliderDotNavLabelText') { |
| 14 | + return 'Jump to slide {slideNumber}'; |
| 15 | + } |
| 16 | + return key; |
| 17 | + }, |
| 18 | + }), |
| 19 | +})); |
| 20 | + |
| 21 | +// A helper function to render components with a mock context |
| 22 | +const renderWithContext = ( |
| 23 | + ui: React.ReactElement, |
| 24 | + providerProps: Partial<CarouselContextType>, |
| 25 | +) => |
| 26 | + render( |
| 27 | + <CarouselContext.Provider |
| 28 | + value={{ |
| 29 | + ...initialCarouselContextValues, |
| 30 | + // Dummy functions for context fields that require them |
| 31 | + setTransformValue: jest.fn(), |
| 32 | + setNumberOfSlides: jest.fn(), |
| 33 | + setItemsPerSlide: jest.fn(), |
| 34 | + setCurrentSlide: jest.fn(), |
| 35 | + setWidth: jest.fn(), |
| 36 | + ...providerProps, |
| 37 | + }} |
| 38 | + > |
| 39 | + {ui} |
| 40 | + </CarouselContext.Provider>, |
| 41 | + ); |
| 42 | + |
| 43 | +describe('CarouselSlideDots', () => { |
| 44 | + const mockHandleUpdateSlideProps = jest.fn(); |
| 45 | + |
| 46 | + beforeEach(() => { |
| 47 | + mockHandleUpdateSlideProps.mockClear(); |
| 48 | + }); |
| 49 | + |
| 50 | + it('renders the correct number of dots and highlights the active one', () => { |
| 51 | + renderWithContext(<CarouselSlideDots />, { |
| 52 | + numberOfSlides: 5, |
| 53 | + currentSlide: 2, |
| 54 | + handleUpdateSlideProps: mockHandleUpdateSlideProps, |
| 55 | + navigateWithDots: true, |
| 56 | + }); |
| 57 | + |
| 58 | + const dots = screen.getAllByRole('button'); |
| 59 | + expect(dots).toHaveLength(5); |
| 60 | + |
| 61 | + // The third dot (index 2) should be the selected one |
| 62 | + expect(dots[2]).toHaveClass('selected'); |
| 63 | + expect(dots[1]).not.toHaveClass('selected'); |
| 64 | + }); |
| 65 | + |
| 66 | + it('calls handler with positive index when navigating forward', () => { |
| 67 | + renderWithContext(<CarouselSlideDots />, { |
| 68 | + numberOfSlides: 5, |
| 69 | + currentSlide: 1, |
| 70 | + handleUpdateSlideProps: mockHandleUpdateSlideProps, |
| 71 | + navigateWithDots: true, |
| 72 | + }); |
| 73 | + |
| 74 | + fireEvent.click(screen.getByLabelText('Jump to slide 4')); |
| 75 | + expect(mockHandleUpdateSlideProps).toHaveBeenCalledWith(3); |
| 76 | + }); |
| 77 | + |
| 78 | + it('calls handler with negative index when navigating backward', () => { |
| 79 | + renderWithContext(<CarouselSlideDots />, { |
| 80 | + numberOfSlides: 5, |
| 81 | + currentSlide: 3, |
| 82 | + handleUpdateSlideProps: mockHandleUpdateSlideProps, |
| 83 | + navigateWithDots: true, |
| 84 | + }); |
| 85 | + |
| 86 | + fireEvent.click(screen.getByLabelText('Jump to slide 2')); |
| 87 | + expect(mockHandleUpdateSlideProps).toHaveBeenCalledWith(-1); |
| 88 | + }); |
| 89 | + |
| 90 | + it('does not call handler when clicking the active dot', () => { |
| 91 | + renderWithContext(<CarouselSlideDots />, { |
| 92 | + numberOfSlides: 5, |
| 93 | + currentSlide: 2, |
| 94 | + handleUpdateSlideProps: mockHandleUpdateSlideProps, |
| 95 | + navigateWithDots: true, |
| 96 | + }); |
| 97 | + |
| 98 | + fireEvent.click(screen.getByLabelText('Jump to slide 3')); |
| 99 | + expect(mockHandleUpdateSlideProps).not.toHaveBeenCalled(); |
| 100 | + }); |
| 101 | + |
| 102 | + it('disables dots and sets aria-hidden when navigateWithDots is false', () => { |
| 103 | + renderWithContext(<CarouselSlideDots />, { |
| 104 | + numberOfSlides: 5, |
| 105 | + currentSlide: 0, |
| 106 | + handleUpdateSlideProps: mockHandleUpdateSlideProps, |
| 107 | + navigateWithDots: false, |
| 108 | + }); |
| 109 | + |
| 110 | + const container = screen.getByRole('navigation', { hidden: true }); |
| 111 | + expect(container).toHaveAttribute('aria-hidden', 'true'); |
| 112 | + |
| 113 | + const dots = screen.getAllByRole('button', { hidden: true }); |
| 114 | + dots.forEach((dot) => expect(dot).toBeDisabled()); |
| 115 | + }); |
| 116 | +}); |
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