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import React from 'react'
import assert from 'assert'
import { shallow, mount } from 'enzyme'
import sinon from 'sinon'
import UnitInput from '../unit-input.component'
describe('UnitInput Component', () => {
describe('rendering', () => {
it('should render properly without a suffix', () => {
const wrapper = shallow(
<UnitInput />
)
assert.ok(wrapper)
assert.equal(wrapper.find('.unit-input__suffix').length, 0)
})
it('should render properly with a suffix', () => {
const wrapper = shallow(
<UnitInput
suffix="ETH"
/>
)
assert.ok(wrapper)
assert.equal(wrapper.find('.unit-input__suffix').length, 1)
assert.equal(wrapper.find('.unit-input__suffix').text(), 'ETH')
})
it('should render properly with a child omponent', () => {
const wrapper = shallow(
<UnitInput>
<div className="testing">
TESTCOMPONENT
</div>
</UnitInput>
)
assert.ok(wrapper)
assert.equal(wrapper.find('.testing').length, 1)
assert.equal(wrapper.find('.testing').text(), 'TESTCOMPONENT')
})
it('should render with an error class when props.error === true', () => {
const wrapper = shallow(
<UnitInput
error
/>
)
assert.ok(wrapper)
assert.equal(wrapper.find('.unit-input--error').length, 1)
})
})
describe('handling actions', () => {
const handleChangeSpy = sinon.spy()
const handleBlurSpy = sinon.spy()
afterEach(() => {
handleChangeSpy.resetHistory()
handleBlurSpy.resetHistory()
})
it('should focus the input on component click', () => {
const wrapper = mount(
<UnitInput />
)
assert.ok(wrapper)
const handleFocusSpy = sinon.spy(wrapper.instance(), 'handleFocus')
wrapper.instance().forceUpdate()
wrapper.update()
assert.equal(handleFocusSpy.callCount, 0)
wrapper.find('.unit-input').simulate('click')
assert.equal(handleFocusSpy.callCount, 1)
})
it('should call onChange on input changes with the value', () => {
const wrapper = mount(
<UnitInput
onChange={handleChangeSpy}
/>
)
assert.ok(wrapper)
assert.equal(handleChangeSpy.callCount, 0)
const input = wrapper.find('input')
input.simulate('change', { target: { value: 123 } })
assert.equal(handleChangeSpy.callCount, 1)
assert.ok(handleChangeSpy.calledWith(123))
assert.equal(wrapper.state('value'), 123)
})
it('should call onBlur on blur with the value', () => {
const wrapper = mount(
<UnitInput
onChange={handleChangeSpy}
onBlur={handleBlurSpy}
/>
)
assert.ok(wrapper)
assert.equal(handleChangeSpy.callCount, 0)
assert.equal(handleBlurSpy.callCount, 0)
const input = wrapper.find('input')
input.simulate('change', { target: { value: 123 } })
assert.equal(handleChangeSpy.callCount, 1)
assert.ok(handleChangeSpy.calledWith(123))
assert.equal(wrapper.state('value'), 123)
input.simulate('blur')
assert.equal(handleBlurSpy.callCount, 1)
assert.ok(handleBlurSpy.calledWith(123))
})
it('should set the component state value with props.value', () => {
const wrapper = mount(
<UnitInput
value={123}
/>
)
assert.ok(wrapper)
assert.equal(wrapper.state('value'), 123)
})
it('should update the component state value with props.value', () => {
const wrapper = mount(
<UnitInput
onChange={handleChangeSpy}
/>
)
assert.ok(wrapper)
assert.equal(handleChangeSpy.callCount, 0)
const input = wrapper.find('input')
input.simulate('change', { target: { value: 123 } })
assert.equal(wrapper.state('value'), 123)
assert.equal(handleChangeSpy.callCount, 1)
assert.ok(handleChangeSpy.calledWith(123))
wrapper.setProps({ value: 456 })
assert.equal(wrapper.state('value'), 456)
assert.equal(handleChangeSpy.callCount, 1)
})
})
})
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