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| 1 | +import { scrollbarStyle } from './scrollbar'; |
| 2 | + |
| 3 | +describe('scrollbarStyle', () => { |
| 4 | + it('returns undefined when scrollbar is not defined', () => { |
| 5 | + expect(scrollbarStyle({})).toBeUndefined(); |
| 6 | + }); |
| 7 | + |
| 8 | + it('handles boolean true value as thin', () => { |
| 9 | + const result = scrollbarStyle({ scrollbar: true }); |
| 10 | + expect(result['scrollbar-width']).toBe('thin'); |
| 11 | + }); |
| 12 | + |
| 13 | + it('handles number value as size', () => { |
| 14 | + const result = scrollbarStyle({ scrollbar: 10 }); |
| 15 | + expect(result['&::-webkit-scrollbar']['width']).toBe('10'); |
| 16 | + expect(result['&::-webkit-scrollbar']['height']).toBe('10'); |
| 17 | + }); |
| 18 | + |
| 19 | + it('handles "none" modifier', () => { |
| 20 | + const result = scrollbarStyle({ scrollbar: 'none' }); |
| 21 | + expect(result['scrollbar-width']).toBe('none'); |
| 22 | + expect(result['scrollbar-color']).toBe('transparent transparent'); |
| 23 | + expect(result['&::-webkit-scrollbar']['width']).toBe('0px'); |
| 24 | + }); |
| 25 | + |
| 26 | + it('handles "styled" modifier with proper defaults', () => { |
| 27 | + const result = scrollbarStyle({ scrollbar: 'styled' }); |
| 28 | + expect(result['scrollbar-width']).toBe('thin'); |
| 29 | + expect(result['&::-webkit-scrollbar']['width']).toBe('8px'); |
| 30 | + expect(result['&::-webkit-scrollbar-thumb']['border-radius']).toBe('8px'); |
| 31 | + expect(result['&::-webkit-scrollbar-thumb']['min-height']).toBe('24px'); |
| 32 | + }); |
| 33 | + |
| 34 | + it('handles custom colors', () => { |
| 35 | + const result = scrollbarStyle({ scrollbar: '#red #blue #green' }); |
| 36 | + expect(result['scrollbar-color']).toBe( |
| 37 | + 'var(--red-color) var(--blue-color)', |
| 38 | + ); |
| 39 | + expect(result['&::-webkit-scrollbar-track']['background']).toBe( |
| 40 | + 'var(--blue-color)', |
| 41 | + ); |
| 42 | + expect(result['&::-webkit-scrollbar-thumb']['background']).toBe( |
| 43 | + 'var(--red-color)', |
| 44 | + ); |
| 45 | + expect(result['&::-webkit-scrollbar-corner']['background']).toBe( |
| 46 | + 'var(--green-color)', |
| 47 | + ); |
| 48 | + }); |
| 49 | + |
| 50 | + it('handles "always" modifier with overflow', () => { |
| 51 | + const result = scrollbarStyle({ scrollbar: 'always', overflow: 'auto' }); |
| 52 | + expect(result['overflow']).toBe('auto'); |
| 53 | + expect(result['scrollbar-gutter']).toBe('stable'); |
| 54 | + expect(result['&::-webkit-scrollbar']['display']).toBe('block'); |
| 55 | + }); |
| 56 | + |
| 57 | + it('combines modifiers correctly', () => { |
| 58 | + const result = scrollbarStyle({ scrollbar: 'thin styled #red' }); |
| 59 | + expect(result['scrollbar-width']).toBe('thin'); |
| 60 | + expect(result['scrollbar-color']).toBe( |
| 61 | + 'var(--red-color) var(--scrollbar-track-color, transparent)', |
| 62 | + ); |
| 63 | + expect(result['&::-webkit-scrollbar-thumb']['background']).toBe( |
| 64 | + 'var(--red-color)', |
| 65 | + ); |
| 66 | + }); |
| 67 | + |
| 68 | + it('applies custom colors to styled scrollbars', () => { |
| 69 | + const result = scrollbarStyle({ |
| 70 | + scrollbar: 'styled #purple #dark #light-grey', |
| 71 | + }); |
| 72 | + expect(result['scrollbar-color']).toBe( |
| 73 | + 'var(--purple-color) var(--dark-color)', |
| 74 | + ); |
| 75 | + expect(result['&::-webkit-scrollbar']['background']).toBe( |
| 76 | + 'var(--dark-color)', |
| 77 | + ); |
| 78 | + expect(result['&::-webkit-scrollbar-track']['background']).toBe( |
| 79 | + 'var(--dark-color)', |
| 80 | + ); |
| 81 | + expect(result['&::-webkit-scrollbar-thumb']['background']).toBe( |
| 82 | + 'var(--purple-color)', |
| 83 | + ); |
| 84 | + expect(result['&::-webkit-scrollbar-corner']['background']).toBe( |
| 85 | + 'var(--light-grey-color)', |
| 86 | + ); |
| 87 | + }); |
| 88 | + |
| 89 | + it('applies partial custom colors with defaults', () => { |
| 90 | + const result = scrollbarStyle({ scrollbar: 'styled #danger' }); |
| 91 | + // Only thumb color specified, track should use default |
| 92 | + expect(result['scrollbar-color']).toBe( |
| 93 | + 'var(--danger-color) var(--scrollbar-track-color, transparent)', |
| 94 | + ); |
| 95 | + expect(result['&::-webkit-scrollbar-thumb']['background']).toBe( |
| 96 | + 'var(--danger-color)', |
| 97 | + ); |
| 98 | + expect(result['&::-webkit-scrollbar-track']['background']).toBe( |
| 99 | + 'var(--scrollbar-track-color, transparent)', |
| 100 | + ); |
| 101 | + }); |
| 102 | + |
| 103 | + it('ensures all CSS properties are kebab-cased', () => { |
| 104 | + const result = scrollbarStyle({ scrollbar: 'styled thin' }); |
| 105 | + // Check that camelCase properties are converted to kebab-case |
| 106 | + expect(result['&::-webkit-scrollbar-thumb']['border-radius']).toBe('8px'); |
| 107 | + expect(result['&::-webkit-scrollbar-thumb']['min-height']).toBe('24px'); |
| 108 | + }); |
| 109 | +}); |
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