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218 changes: 218 additions & 0 deletions
218
packages/components/src/components/Snackbar/Snackbar.test.tsx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,218 @@ | ||
| import { fireEvent, render, screen } from '@testing-library/react-native' | ||
| import React from 'react' | ||
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| import { Icon } from '../Icon/Icon' | ||
| import { Snackbar, SnackbarProps } from './Snackbar' | ||
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| // Set so setTimeout for `announceForAccessibility` doesn't persist rendering after the jest test | ||
| jest.useFakeTimers() | ||
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| const onPressHideSpy = jest.fn() | ||
| const onPressActionSpy = jest.fn() | ||
| const mockedColorScheme = jest.fn() | ||
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| jest.mock('react-native/Libraries/Utilities/useColorScheme', () => { | ||
| return { | ||
| default: mockedColorScheme, | ||
| } | ||
| }) | ||
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| const commonProps: SnackbarProps = { | ||
| message: 'Test Snackbar Text', | ||
| data: { | ||
| isError: false, | ||
| messageA11y: 'message a11y', | ||
| onActionPressed: onPressActionSpy, | ||
| }, | ||
| onHide: onPressHideSpy, | ||
| } | ||
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| const errorProps: SnackbarProps = { | ||
| ...commonProps, | ||
| data: { | ||
| ...commonProps.data, | ||
| isError: true, | ||
| }, | ||
| } | ||
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| const getMessageText = () => screen.getByText(commonProps.message) | ||
| const getDismissText = () => screen.getByText('Dismiss') | ||
| const getIcon = async () => screen.root.findByType(Icon) | ||
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| describe('Snackbar', () => { | ||
| afterEach(() => { | ||
| onPressHideSpy.mockReset() | ||
| onPressActionSpy.mockReset() | ||
| }) | ||
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| describe('Basic UI tests', () => { | ||
| it('initializes correctly with `message` text', () => { | ||
| render(<Snackbar {...commonProps} />) | ||
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| expect(getMessageText()).toBeOnTheScreen() | ||
| }) | ||
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| it('renders the `Dismiss` button text', () => { | ||
| render(<Snackbar {...commonProps} />) | ||
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| expect(getDismissText()).toBeOnTheScreen() | ||
| }) | ||
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| it('calls onHide when `Dismiss` tapped', () => { | ||
| render(<Snackbar {...commonProps} />) | ||
| fireEvent.press(getDismissText()) | ||
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| expect(onPressHideSpy).toHaveBeenCalled() | ||
| expect(onPressActionSpy).not.toHaveBeenCalled() | ||
| }) | ||
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| it('renders default `CheckCircle` icon', async () => { | ||
| render(<Snackbar {...commonProps} />) | ||
| const icon = await getIcon() | ||
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| expect(icon).toBeDefined() | ||
| expect(icon.props.name).toBe('CheckCircle') | ||
| }) | ||
| }) | ||
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| describe('Light mode', () => { | ||
| it('renders background color', () => { | ||
| render(<Snackbar {...commonProps} />) | ||
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| expect(screen.root).toHaveStyle({ backgroundColor: '#1b1b1b' }) | ||
| }) | ||
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| it('renders `message` text and icon color', () => { | ||
| render(<Snackbar {...commonProps} />) | ||
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| expect(getMessageText()).toHaveStyle({ color: '#f0f0f0' }) | ||
| }) | ||
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| it('renders button text color', () => { | ||
| render(<Snackbar {...commonProps} />) | ||
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| expect(getDismissText()).toHaveStyle({ color: '#ffffff' }) | ||
| }) | ||
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| it('renders alternate button text color when pressed', () => { | ||
| render(<Snackbar {...commonProps} />) | ||
| const longPress = getDismissText() | ||
| fireEvent(longPress, 'onResponderGrant', { | ||
| persist: jest.fn(), | ||
| nativeEvent: { | ||
| timestamp: Date.now(), | ||
| }, | ||
| }) | ||
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| expect(longPress).toHaveStyle({ color: '#a9aeb1' }) | ||
| }) | ||
| }) | ||
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| describe('Dark mode', () => { | ||
| beforeAll(() => mockedColorScheme.mockImplementation(() => 'dark')) | ||
| afterAll(() => mockedColorScheme.mockReset()) | ||
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| it('renders background color', () => { | ||
| render(<Snackbar {...commonProps} />) | ||
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| expect(screen.root).toHaveStyle({ backgroundColor: '#f0f0f0' }) | ||
| }) | ||
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| it('renders `message` text and icon color', () => { | ||
| render(<Snackbar {...commonProps} />) | ||
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| expect(getMessageText()).toHaveStyle({ color: '#1b1b1b' }) | ||
| }) | ||
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| it('renders button text color', () => { | ||
| render(<Snackbar {...commonProps} />) | ||
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| expect(getDismissText()).toHaveStyle({ color: '#000000' }) | ||
| }) | ||
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| it('renders alternate button text color when pressed', () => { | ||
| render(<Snackbar {...commonProps} />) | ||
| const longPress = getDismissText() | ||
| fireEvent(longPress, 'onResponderGrant', { | ||
| persist: jest.fn(), | ||
| nativeEvent: { | ||
| timestamp: Date.now(), | ||
| }, | ||
| }) | ||
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| expect(longPress).toHaveStyle({ color: '#565c65' }) | ||
| }) | ||
| }) | ||
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| describe('Action button', () => { | ||
| it('renders `Undo` button by default', () => { | ||
| render(<Snackbar {...commonProps} />) | ||
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| expect(screen.getByText('Undo')).toBeOnTheScreen() | ||
| expect(screen.queryByText('Try again')).not.toBeOnTheScreen() | ||
| }) | ||
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| it('renders `CheckCircle` icon by default', async () => { | ||
| render(<Snackbar {...commonProps} />) | ||
| const icon = await getIcon() | ||
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| expect(icon).toBeDefined() | ||
| expect(icon.props.name).toBe('CheckCircle') | ||
| }) | ||
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| it('error renders `Try again` button', () => { | ||
| render(<Snackbar {...errorProps} />) | ||
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| expect(screen.getByText('Try again')).toBeOnTheScreen() | ||
| expect(screen.queryByText('Undo')).not.toBeOnTheScreen() | ||
| }) | ||
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| it('error renders `Warning` icon', async () => { | ||
| render(<Snackbar {...errorProps} />) | ||
| const icon = await getIcon() | ||
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| expect(icon).toBeDefined() | ||
| expect(icon.props.name).toBe('Warning') | ||
| }) | ||
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| it('calls action button and onHide logic when pressed', () => { | ||
| render(<Snackbar {...commonProps} />) | ||
| fireEvent.press(getDismissText()) | ||
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| expect(onPressHideSpy).toHaveBeenCalledTimes(1) | ||
| expect(onPressActionSpy).toHaveBeenCalledTimes(0) | ||
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| fireEvent.press(screen.getByText('Undo')) | ||
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| expect(onPressHideSpy).toHaveBeenCalledTimes(2) | ||
| expect(onPressActionSpy).toHaveBeenCalledTimes(1) | ||
| }) | ||
| }) | ||
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| describe('Accessibility', () => { | ||
| it('message has aria-label override when present', () => { | ||
| render(<Snackbar {...commonProps} />) | ||
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| expect(getMessageText()).toHaveAccessibleName('message a11y') | ||
| }) | ||
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| it('message defers to text displayed when no aria-label', () => { | ||
| render(<Snackbar {...commonProps} data={{}} />) | ||
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| expect(getMessageText()).not.toHaveAccessibleName('message a11y') | ||
| expect(getMessageText()).toHaveAccessibleName('Test Snackbar Text') | ||
| }) | ||
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| it('Snackbar has `alert` accessibility role', () => { | ||
| render(<Snackbar {...commonProps} />) | ||
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| expect(screen.getByRole('alert')).toBeOnTheScreen() | ||
| }) | ||
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| it('buttons have `button` accessibility role', () => { | ||
| render(<Snackbar {...commonProps} />) | ||
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| expect(screen.getAllByRole('button').length).toEqual(2) | ||
| }) | ||
| }) | ||
| }) |
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