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Diffstat (limited to 'finished-application/frontend/__tests__/CreateItem.test.js')
| -rw-r--r-- | finished-application/frontend/__tests__/CreateItem.test.js | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/finished-application/frontend/__tests__/CreateItem.test.js b/finished-application/frontend/__tests__/CreateItem.test.js new file mode 100644 index 0000000..56c3f10 --- /dev/null +++ b/finished-application/frontend/__tests__/CreateItem.test.js @@ -0,0 +1,132 @@ +import React from 'react'; +import { mount } from 'enzyme'; +import toJSON from 'enzyme-to-json'; +import Router from 'next/router'; +import { MockedProvider } from 'react-apollo/test-utils'; +import CreateItem, { CREATE_ITEM_MUTATION } from '../components/CreateItem'; +import wait from 'waait'; +import { fakeItem } from '../lib/testUtils'; + +const dogImage = 'https://dog.com/dog.jpg'; + +// Mock fetch to resolve data +global.fetch = jest.fn().mockResolvedValue({ + json: () => ({ + secure_url: dogImage, + eager: [{ secure_url: dogImage }], + }), +}); + +describe('<Createitem/>', () => { + it('renders and matches snapshot', () => { + const wrapper = mount( + <MockedProvider> + <CreateItem /> + </MockedProvider> + ); + const form = wrapper.find('form[data-test]'); + expect(toJSON(form)).toMatchSnapshot(); + }); + + it('uploads a file when changed', async () => { + const wrapper = mount( + <MockedProvider> + <CreateItem /> + </MockedProvider> + ); + const component = wrapper.find('CreateItem').instance(); + + const input = wrapper.find('input[type="file"]'); + // internally this does some setState() calls + input.simulate('change', { currentTarget: { files: ['fakedog.jpg'] } }); + await wait(0); + expect(component.state.image).toEqual(dogImage); + expect(component.state.largeImage).toEqual(dogImage); + }); + + it('handles state updating', async () => { + const wrapper = mount( + <MockedProvider> + <CreateItem /> + </MockedProvider> + ); + + wrapper.find('#title').simulate('change', { target: { value: 'Testing', name: 'title' } }); + wrapper.find('#price').simulate('change', { + target: { + value: 50000, + name: 'price', + type: 'number', + }, + }); + wrapper.find('#description').simulate('change', { + target: { + value: 'This is a really nice item', + name: 'description', + }, + }); + const component = wrapper.find('CreateItem').instance(); + expect(component.state).toMatchObject({ + title: 'Testing', + description: 'This is a really nice item', + image: '', + largeImage: '', + price: 50000, + }); + }); + + it('creates an item when form is submitted', async () => { + const item = fakeItem(); + const mocks = [ + { + request: { + query: CREATE_ITEM_MUTATION, + variables: { + title: item.title, + description: item.description, + image: '', + largeImage: '', + price: item.price, + }, + }, + result: { + data: { + createItem: { + ...fakeItem(), + __typeName: 'Item', + }, + }, + }, + }, + ]; + + const wrapper = mount( + <MockedProvider mocks={mocks}> + <CreateItem /> + </MockedProvider> + ); + + wrapper.find('#title').simulate('change', { target: { value: item.title, name: 'title' } }); + wrapper.find('#price').simulate('change', { + target: { + value: item.price, + name: 'price', + type: 'number', + }, + }); + wrapper.find('#description').simulate('change', { + target: { + value: item.description, + name: 'description', + }, + }); + + Router.router = { push: jest.fn() }; + // it submits and matches the mocks + wrapper.find('form').simulate('submit'); + // it routes to the item page + await wait(50); + expect(Router.router.push).toHaveBeenCalled(); + expect(Router.router.push).toHaveBeenCalledWith({ pathname: '/item', query: { id: '123' } }); + }); +}); |
