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93 lines
2.8 KiB
93 lines
2.8 KiB
import React from 'react';
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import { shallow } from 'enzyme';
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import sinon from 'sinon';
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import AmountMaxButton from './amount-max-button.component';
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describe('AmountMaxButton Component', () => {
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let wrapper;
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let instance;
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const propsMethodSpies = {
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setAmountToMax: sinon.spy(),
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setMaxModeTo: sinon.spy(),
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};
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const MOCK_EVENT = { preventDefault: () => undefined };
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beforeAll(() => {
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sinon.spy(AmountMaxButton.prototype, 'setMaxAmount');
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});
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beforeEach(() => {
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wrapper = shallow(
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<AmountMaxButton
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balance="mockBalance"
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gasTotal="mockGasTotal"
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maxModeOn={false}
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sendToken={{ address: 'mockTokenAddress' }}
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setAmountToMax={propsMethodSpies.setAmountToMax}
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setMaxModeTo={propsMethodSpies.setMaxModeTo}
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tokenBalance="mockTokenBalance"
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/>,
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{
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context: {
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t: (str) => `${str}_t`,
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metricsEvent: () => undefined,
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},
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},
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);
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instance = wrapper.instance();
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});
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afterEach(() => {
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propsMethodSpies.setAmountToMax.resetHistory();
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propsMethodSpies.setMaxModeTo.resetHistory();
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AmountMaxButton.prototype.setMaxAmount.resetHistory();
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});
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afterAll(() => {
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sinon.restore();
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});
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describe('setMaxAmount', () => {
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it('should call setAmountToMax with the correct params', () => {
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expect(propsMethodSpies.setAmountToMax.callCount).toStrictEqual(0);
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instance.setMaxAmount();
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expect(propsMethodSpies.setAmountToMax.callCount).toStrictEqual(1);
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expect(propsMethodSpies.setAmountToMax.getCall(0).args).toStrictEqual([
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{
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balance: 'mockBalance',
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gasTotal: 'mockGasTotal',
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sendToken: { address: 'mockTokenAddress' },
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tokenBalance: 'mockTokenBalance',
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},
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]);
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});
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});
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describe('render', () => {
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it('should render an element with a send-v2__amount-max class', () => {
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expect(wrapper.find('.send-v2__amount-max')).toHaveLength(1);
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});
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it('should call setMaxModeTo and setMaxAmount when the checkbox is checked', () => {
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const { onClick } = wrapper.find('.send-v2__amount-max').props();
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expect(AmountMaxButton.prototype.setMaxAmount.callCount).toStrictEqual(0);
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expect(propsMethodSpies.setMaxModeTo.callCount).toStrictEqual(0);
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onClick(MOCK_EVENT);
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expect(AmountMaxButton.prototype.setMaxAmount.callCount).toStrictEqual(1);
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expect(propsMethodSpies.setMaxModeTo.callCount).toStrictEqual(1);
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expect(propsMethodSpies.setMaxModeTo.getCall(0).args).toStrictEqual([
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true,
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]);
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});
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it('should render the expected text when maxModeOn is false', () => {
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wrapper.setProps({ maxModeOn: false });
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expect(wrapper.find('.send-v2__amount-max').text()).toStrictEqual(
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'max_t',
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);
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});
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});
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});
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