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create switch component and add unit tests
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import '@testing-library/jest-dom' | ||
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import { fireEvent, render, screen } from '@testing-library/react' | ||
import React from 'react' | ||
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import { Switch } from '@/components/switch' | ||
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describe('Switch', () => { | ||
it('renders without crashing', () => { | ||
render(<Switch />) | ||
expect(screen.getByRole('checkbox')).toBeInTheDocument() | ||
}) | ||
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it('applies default classes', () => { | ||
render(<Switch />) | ||
const switchElement = screen.getByRole('checkbox').nextSibling | ||
expect(switchElement).toHaveClass('w-[42px] h-[26px] before:h-5 before:w-5') | ||
}) | ||
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it('applies small size classes when size prop is small', () => { | ||
render(<Switch size="small" />) | ||
const switchElement = screen.getByRole('checkbox').nextSibling | ||
expect(switchElement).toHaveClass('w-9 h-[22px] before:h-4 before:w-4 before:left-[3px]') | ||
}) | ||
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it('forwards ref to input element', () => { | ||
const ref = React.createRef<HTMLInputElement>() | ||
render(<Switch ref={ref} />) | ||
expect(ref.current).toBeInstanceOf(HTMLInputElement) | ||
}) | ||
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it('forwards checked prop to input element', () => { | ||
render(<Switch checked />) | ||
const inputElement = screen.getByRole('checkbox') | ||
expect(inputElement).toBeChecked() | ||
}) | ||
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it('handles additional props', () => { | ||
render(<Switch aria-label="Custom Switch" />) | ||
const inputElement = screen.getByRole('checkbox') | ||
expect(inputElement).toHaveAttribute('aria-label', 'Custom Switch') | ||
}) | ||
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it('applies custom class names', () => { | ||
const customClass = 'custom-class' | ||
render(<Switch className={customClass} />) | ||
const switchElement = screen.getByRole('checkbox').nextSibling | ||
expect(switchElement).toHaveClass(customClass) | ||
}) | ||
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it('toggles switch state when clicked', () => { | ||
render(<Switch />) | ||
const inputElement = screen.getByRole('checkbox') | ||
expect(inputElement).not.toBeChecked() | ||
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fireEvent.click(inputElement) | ||
expect(inputElement).toBeChecked() | ||
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fireEvent.click(inputElement) | ||
expect(inputElement).not.toBeChecked() | ||
}) | ||
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it('handles additional HTML attributes', () => { | ||
const testId = 'switch-test' | ||
render(<Switch data-testid={testId} />) | ||
const switchElement = screen.getByTestId(testId) | ||
expect(switchElement).toBeInTheDocument() | ||
}) | ||
}) |
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import { type VariantProps, cva } from 'class-variance-authority' | ||
import React, { forwardRef } from 'react' | ||
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import { cn } from '@/utils/cn' | ||
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const switchVariants = cva( | ||
[ | ||
'rounded-full bg-disabled-strong relative cursor-pointer transition-all duration-300 ease-in-out', | ||
'before:content-[""] before:absolute before:bg-white before:rounded-full', | ||
'before:top-1/2 before:transform before:-translate-y-1/2 before:left-[4px]', | ||
'before:transition-all before:duration-300 before:ease-in-out', | ||
'peer-checked:before:left-[18px] peer-checked:bg-switch-base', | ||
], | ||
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{ | ||
variants: { | ||
size: { | ||
default: 'w-[42px] h-[26px] before:h-5 before:w-5', | ||
small: [ | ||
'w-9 h-[22px] before:h-4 before:w-4 before:left-[3px]', | ||
'peer-checked:before:left-4', | ||
], | ||
}, | ||
}, | ||
defaultVariants: { | ||
size: 'default', | ||
}, | ||
}, | ||
) | ||
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export interface SwitchProps | ||
extends VariantProps<typeof switchVariants>, | ||
React.HTMLAttributes<HTMLInputElement> { | ||
checked?: boolean | ||
} | ||
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export const Switch = forwardRef<HTMLInputElement, SwitchProps>(function Switch( | ||
{ size, className, ...props }, | ||
ref, | ||
) { | ||
return ( | ||
<label> | ||
<input ref={ref} type="checkbox" {...props} className="peer hidden" /> | ||
<div className={cn(switchVariants({ size }), className)} /> | ||
</label> | ||
) | ||
}) |
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