From b1600adec47a04f60e1da07d94a3ed3906ff5aee Mon Sep 17 00:00:00 2001
From: Wes Bos <wesbos@gmail.com>
Date: Thu, 14 Jun 2018 16:44:21 -0400
Subject: starter files

---
 .../frontend/__tests__/SingleItem.test.js          | 67 ++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 finished-application/frontend/__tests__/SingleItem.test.js

(limited to 'finished-application/frontend/__tests__/SingleItem.test.js')

diff --git a/finished-application/frontend/__tests__/SingleItem.test.js b/finished-application/frontend/__tests__/SingleItem.test.js
new file mode 100644
index 0000000..aeb8554
--- /dev/null
+++ b/finished-application/frontend/__tests__/SingleItem.test.js
@@ -0,0 +1,67 @@
+import React from 'react';
+import { mount } from 'enzyme';
+import wait from 'waait';
+import toJSON from 'enzyme-to-json';
+import SingleItem, { SINGLE_ITEM_QUERY } from '../components/SingleItem';
+import { MockedProvider } from 'react-apollo/test-utils';
+import { fakeItem, fakeUser } from '../lib/testUtils';
+import { CURRENT_USER_QUERY } from '../components/User';
+
+const data = {
+  items: [fakeItem()],
+};
+
+describe('<SingleItem/>', () => {
+  it('Renders with Proper Data', async () => {
+    const mocks = [
+      {
+        request: { query: SINGLE_ITEM_QUERY, variables: { id: '123' } },
+        result: { data },
+      },
+      {
+        request: { query: CURRENT_USER_QUERY },
+        result: { data: { me: fakeUser() } },
+      },
+    ];
+    const wrapper = mount(
+      <MockedProvider mocks={mocks}>
+        <SingleItem id="123" />
+      </MockedProvider>
+    );
+    // Check for loading state
+    expect(wrapper.text()).toContain('Loading...');
+
+    // wait for response and refresh
+    await wait(55);
+    wrapper.update();
+    // Grab the piece we want
+    expect(toJSON(wrapper.find('h2'))).toMatchSnapshot();
+    expect(toJSON(wrapper.find('img'))).toMatchSnapshot();
+    expect(toJSON(wrapper.find('p'))).toMatchSnapshot();
+  });
+
+  it('Errors with a not found Item', async () => {
+    const mocks = [
+      {
+        request: { query: SINGLE_ITEM_QUERY, variables: { id: '123' } },
+        delay: 50,
+        // we can return data and an error
+        result: { data, errors: [{ message: 'Item not found!' }] },
+        // or just an error!
+        // error: new Error('offline!'),
+      },
+    ];
+    const wrapper = mount(
+      <MockedProvider mocks={mocks}>
+        <SingleItem id="123" />
+      </MockedProvider>
+    );
+
+    // wait for response
+    await wait(55);
+    wrapper.update();
+
+    const Item = wrapper.find('[data-test="graphql-error"]');
+    expect(toJSON(Item)).toMatchSnapshot();
+  });
+});
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