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import React from 'react'
import assert from 'assert'
import { shallow } from 'enzyme'
import sinon from 'sinon'
import AmountMaxButton from '../amount-max-button.component.js'
const propsMethodSpies = {
setAmountToMax: sinon.spy(),
setMaxModeTo: sinon.spy(),
}
const MOCK_EVENT = { preventDefault: () => {} }
sinon.spy(AmountMaxButton.prototype, 'setMaxAmount')
describe('AmountMaxButton Component', function () {
let wrapper
let instance
beforeEach(() => {
wrapper = shallow(<AmountMaxButton
balance={'mockBalance'}
gasTotal={'mockGasTotal'}
maxModeOn={false}
selectedToken={ { address: 'mockTokenAddress' } }
setAmountToMax={propsMethodSpies.setAmountToMax}
setMaxModeTo={propsMethodSpies.setMaxModeTo}
tokenBalance={'mockTokenBalance'}
/>, { context: { t: str => str + '_t' } })
instance = wrapper.instance()
})
afterEach(() => {
propsMethodSpies.setAmountToMax.resetHistory()
propsMethodSpies.setMaxModeTo.resetHistory()
AmountMaxButton.prototype.setMaxAmount.resetHistory()
})
describe('setMaxAmount', () => {
it('should call setAmountToMax with the correct params', () => {
assert.equal(propsMethodSpies.setAmountToMax.callCount, 0)
instance.setMaxAmount()
assert.equal(propsMethodSpies.setAmountToMax.callCount, 1)
assert.deepEqual(
propsMethodSpies.setAmountToMax.getCall(0).args,
[{
balance: 'mockBalance',
gasTotal: 'mockGasTotal',
selectedToken: { address: 'mockTokenAddress' },
tokenBalance: 'mockTokenBalance',
}]
)
})
})
describe('render', () => {
it('should render an element with a send-v2__amount-max class', () => {
assert(wrapper.exists('.send-v2__amount-max'))
})
it('should call setMaxModeTo and setMaxAmount when the send-v2__amount-max div is clicked', () => {
const {
onClick,
} = wrapper.find('.send-v2__amount-max').props()
assert.equal(AmountMaxButton.prototype.setMaxAmount.callCount, 0)
assert.equal(propsMethodSpies.setMaxModeTo.callCount, 0)
onClick(MOCK_EVENT)
assert.equal(AmountMaxButton.prototype.setMaxAmount.callCount, 1)
assert.equal(propsMethodSpies.setMaxModeTo.callCount, 1)
assert.deepEqual(
propsMethodSpies.setMaxModeTo.getCall(0).args,
[true]
)
})
it('should not render anything when maxModeOn is true', () => {
wrapper.setProps({ maxModeOn: true })
assert.ok(!wrapper.exists('.send-v2__amount-max'))
})
it('should render the expected text when maxModeOn is false', () => {
wrapper.setProps({ maxModeOn: false })
assert.equal(wrapper.find('.send-v2__amount-max').text(), 'max_t')
})
})
})
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