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tooot/__tests__/components/Button.js

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2020-12-28 00:59:57 +01:00
import React from 'react'
import {
toBeDisabled,
toHaveStyle,
toHaveTextContent
} from '@testing-library/jest-native'
import { cleanup, fireEvent, render } from '@testing-library/react-native/pure'
import Button from '@components/Button'
expect.extend({ toBeDisabled, toHaveStyle, toHaveTextContent })
describe('Testing component button', () => {
afterEach(cleanup)
describe('static button', () => {
it('with text only', () => {
const onPress = jest.fn()
const { getByTestId, toJSON } = render(
<Button type='text' content='Test Button' onPress={onPress} />
)
fireEvent.press(getByTestId('base'))
expect(onPress).toHaveBeenCalled()
expect(onPress).toHaveBeenCalledTimes(1)
expect(getByTestId('text')).toHaveTextContent('Test Button')
expect(toJSON()).toMatchSnapshot()
})
it('with icon only', () => {
const onPress = jest.fn()
const { getByTestId, toJSON } = render(
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<Button type='icon' content='X' onPress={onPress} />
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)
fireEvent.press(getByTestId('base'))
expect(onPress).toHaveBeenCalled()
expect(onPress).toHaveBeenCalledTimes(1)
expect(toJSON()).toMatchSnapshot()
})
it('loading state', () => {
const { getByTestId, toJSON } = render(
<Button type='text' content='test' onPress={jest.fn()} loading />
)
expect(getByTestId('base')).toBeDisabled()
expect(toJSON()).toMatchSnapshot()
})
it('disabled state', () => {
const { getByTestId, toJSON } = render(
<Button type='text' content='test' onPress={jest.fn()} disabled />
)
expect(getByTestId('base')).toBeDisabled()
expect(toJSON()).toMatchSnapshot()
})
it('apply custom styling', () => {
const { getByTestId, toJSON } = render(
<Button
type='text'
content='test'
onPress={jest.fn()}
style={{ backgroundColor: 'black' }}
/>
)
expect(getByTestId('base')).toHaveStyle({ backgroundColor: 'black' })
expect(toJSON()).toMatchSnapshot()
})
})
describe('dynamic button', () => {
it('from default to loading', () => {
const onPress = jest.fn()
const { getByTestId, rerender } = render(
<Button type='text' content='test' onPress={onPress} />
)
rerender(<Button type='text' content='test' onPress={onPress} loading />)
expect(getByTestId('base')).toBeDisabled()
})
it('from default to disabled', () => {
const onPress = jest.fn()
const { getByTestId, rerender } = render(
<Button type='text' content='test' onPress={onPress} />
)
rerender(<Button type='text' content='test' onPress={onPress} disabled />)
expect(getByTestId('base')).toBeDisabled()
})
})
})