From 331da87bd53bc1fb79063d142764c75df9f32170 Mon Sep 17 00:00:00 2001
From: Wes Bos <wesbos@gmail.com>
Date: Wed, 14 Mar 2018 12:19:54 -0400
Subject: tests

---
 frontend/__tests__/CreateItem.test.js | 85 +++++++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 frontend/__tests__/CreateItem.test.js

(limited to 'frontend/__tests__/CreateItem.test.js')

diff --git a/frontend/__tests__/CreateItem.test.js b/frontend/__tests__/CreateItem.test.js
new file mode 100644
index 0000000..0994d9c
--- /dev/null
+++ b/frontend/__tests__/CreateItem.test.js
@@ -0,0 +1,85 @@
+import React from 'react';
+import { shallow, mount } from 'enzyme';
+import toJSON from 'enzyme-to-json';
+import { CreateItem } from '../components/CreateItem';
+
+// Wait func
+const wait = amount => new Promise(resolve => setTimeout(resolve, amount));
+
+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 }],
+  }),
+});
+
+const fakeItem = {
+  title: 'Testing',
+  description: 'This is a really nice item',
+  image: dogImage,
+  largeImage: dogImage,
+  price: 50000,
+};
+
+describe('<Createitem/>', () => {
+  it('renders the form out', () => {
+    const createItemMutation = jest.fn();
+    const wrapper = shallow(<CreateItem createItemMutation={createItemMutation} />);
+    expect(toJSON(wrapper)).toMatchSnapshot();
+  });
+
+  it('uploads a file when changed', async () => {
+    const createItemMutation = jest.fn();
+    const wrapper = shallow(<CreateItem createItemMutation={createItemMutation} />);
+
+    const input = wrapper.find('input[type="file"]');
+    // internally this does some setState() calls
+    input.simulate('change', { currentTarget: { files: ['fakedog.jpg'] } });
+    await wait(0);
+    expect(wrapper.state('image')).toEqual(dogImage);
+    expect(wrapper.state('largeImage')).toEqual(dogImage);
+  });
+
+  it('handles state updating', async () => {
+    const createItemMutation = jest.fn();
+    const wrapper = shallow(<CreateItem createItemMutation={createItemMutation} />);
+
+    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',
+      },
+    });
+    expect(wrapper.state().item).toMatchObject({
+      title: 'Testing',
+      description: 'This is a really nice item',
+      image: '',
+      largeImage: '',
+      price: 50000,
+    });
+  });
+
+  it('creates an item with all the inputs', () => {
+    const createItemMutation = jest.fn(() => Promise.resolve({}));
+    const wrapper = shallow(<CreateItem createItemMutation={createItemMutation} />);
+    wrapper.setState({ item: fakeItem });
+    const form = wrapper.find('Form');
+    // console.log(form.debug());
+    form.simulate('submit', {
+      preventDefault() {},
+    });
+    expect(createItemMutation).toHaveBeenCalled();
+    expect(createItemMutation).toHaveBeenCalledWith({ variables: fakeItem });
+  });
+});
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