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- import * as React from 'react';
- import * as TestRenderer from 'react-test-renderer';
- import TestClass from '../TestClass';
- import TestHoc from '../TestHoc';
- let renderer: TestRenderer.ReactTestRenderer;
- describe("Test Component state change without HOC", () => {
- beforeAll(() => {
- renderer = TestRenderer.create(
- <TestClass />
- );
- });
- it("should have counter element", () => {
- let root = renderer.root;
- const counter = root.findAll(
- (el) => el.props.testID === 'counter' && el.type === 'Text'
- );
- expect(counter).toHaveLength(1);
- });
- it("should count 0 as a default", () => {
- let root = renderer.root;
- const counter = root.findAll(
- (el) => el.props.testID === 'counter' && el.type === 'Text'
- );
- expect(counter[0].children).toEqual(['0']);
- });
- it("should setState the counter to 1", () => {
- let root = renderer.root;
- const instance = root.instance;
- instance.setState({ count: 1 })
- const counter = root.findAll(
- (el) => el.props.testID === 'counter' && el.type === 'Text'
- );
- expect(counter[0].children).toEqual(['1']);
- });
- });
- describe('Set preps With HOC', () => {
- it("should preset counter to 2", () => {
- const CountFactory = TestHoc({ count: 2 })(TestClass);
- renderer = TestRenderer.create(
- <CountFactory />
- );
- let root = renderer.root;
- const counter = root.findAll(
- (el) => el.props.testID === 'counter' && el.type === 'Text'
- );
- expect(counter[0].children).toEqual(['2']);
- });
- });
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