feat: include jest serializer

Author: bcarroll22

cleanup-after-each.js

@@ -5,5 +5,6 @@ module.exports = Object.assign(jestPreset, {
     ...jestPreset.transformIgnorePatterns,
     'node_modules/(?!(react-native.*|@?react-navigation.*)/)',
   ],
+  snapshotSerializers: [require.resolve('./dist/preset/serializer.js')],
   setupFiles: [...jestPreset.setupFiles, require.resolve('./dist/preset/setup.js')],
 });

jest-preset.js

@@ -4,6 +4,7 @@ const ignores = ['/node_modules/', '/__tests__/helpers/', '__mocks__'];
 
 module.exports = Object.assign(jestPreset, {
   collectCoverageFrom: ['**/src/lib/**/*.js', '!**/src/preset/**/*.js'],
+  snapshotSerializers: [require.resolve('./src/preset/serializer.js')],
   setupFiles: [...jestPreset.setupFiles, require.resolve('./src/preset/setup.js')],
   testPathIgnorePatterns: [...ignores],
   transformIgnorePatterns: ['node_modules/(?!(react-native.*|@?react-navigation.*)/)'],

jest.config.js

@@ -7,7 +7,6 @@
   "files": [
     "dist",
     "typings",
-    "cleanup-after-each.js",
     "jest-preset.js"
   ],
   "engines": {

package.json

@@ -2,7 +2,13 @@
 
 exports[`Fetch makes an API call and displays the greeting when load-greeting is clicked 1`] = `
 <View
-  testID="ntl-container"
+  collapsable={true}
+  pointerEvents="box-none"
+  style={
+    Object {
+      "flex": 1,
+    }
+  }
 >
   <View>
     <TouchableOpacity

src/__tests__/__snapshots__/fetch.js.snap

@@ -2,9 +2,7 @@ import React from 'react';
 import 'jest-native/extend-expect';
 import { Button } from 'react-native';
 
-import { cleanup, render, fireEvent } from '../';
-
-afterEach(cleanup);
+import { render, fireEvent } from '../';
 
 test('render calls useEffect immediately', () => {
   const effectCb = jest.fn();

src/__tests__/act.js

@@ -1,9 +1,7 @@
 import React from 'react';
 import { Text, View } from 'react-native';
 
-import { cleanup, render, queryAllByProp } from '../';
-
-afterEach(cleanup);
+import { render, queryAllByProp } from '../';
 
 // This is to ensure custom queries can be passed to render. In most cases, you
 // wouldn't/shouldn't need to do this, but we do allow it so we'll test to

src/__tests__/bugs.js

@@ -1,9 +1,7 @@
 import React from 'react';
 import { Text } from 'react-native';
 
-import { cleanup, render } from '../';
-
-afterEach(cleanup);
+import { render } from '../';
 
 beforeEach(() => {
   jest.spyOn(console, 'log').mockImplementation(() => {});
@@ -13,7 +11,7 @@ afterEach(() => {
   console.log.mockRestore();
 });
 
-test('debug pretty prints the testRenderer', () => {
+test('debug pretty prints the baseElement', () => {
   const HelloWorld = () => <Text>Hello World</Text>;
   const { debug } = render(<HelloWorld />);
   debug();

src/__tests__/debug.js

@@ -2,9 +2,7 @@ import React from 'react';
 import 'jest-native/extend-expect';
 import { Text } from 'react-native';
 
-import { cleanup, render, wait } from '../';
-
-afterEach(cleanup);
+import { render, wait } from '../';
 
 const fetchAMessage = () =>
   new Promise(resolve => {

src/__tests__/end-to-end.js

@@ -2,9 +2,7 @@ import React from 'react';
 import 'jest-native/extend-expect';
 import { Button, Image, Text, TextInput, TouchableHighlight } from 'react-native';
 
-import { cleanup, render, fireEvent, eventMap, NativeEvent, getEventHandlerName, wait } from '../';
-
-afterEach(cleanup);
+import { render, fireEvent, eventMap, NativeEvent, getEventHandlerName, wait } from '../';
 
 Object.keys(eventMap).forEach(key => {
   const handlerName = getEventHandlerName(key);
@@ -15,14 +13,17 @@ Object.keys(eventMap).forEach(key => {
     config.validTargets.forEach(element => {
       const spy = jest.fn();
 
-      const { getByTestId } = render(
+      const {
+        container: {
+          children: [button],
+        },
+      } = render(
         React.createElement(element, {
           [handlerName]: spy,
         }),
       );
 
-      const target = getByTestId('ntl-container').children[0];
-      fireEvent[key](target);
+      fireEvent[key](button);
 
       expect(spy).toHaveBeenCalledTimes(1);
     });
@@ -31,9 +32,13 @@ Object.keys(eventMap).forEach(key => {
 
 test('onChange works', () => {
   const handleChange = jest.fn();
-  const { getByTestId } = render(<TextInput onChange={handleChange} />);
-  const target = getByTestId('ntl-container').children[0];
-  fireEvent.change(target, { target: { value: 'a' } });
+  const {
+    container: {
+      children: [input],
+    },
+  } = render(<TextInput onChange={handleChange} />);
+
+  fireEvent.change(input, { target: { value: 'a' } });
   expect(handleChange).toHaveBeenCalledTimes(1);
 });
 
@@ -75,10 +80,9 @@ test('assigns target properties', async () => {
 
 test('calling `fireEvent` directly works too', () => {
   const handleEvent = jest.fn();
-  const { getByTestId } = render(<Button onPress={handleEvent} title="test" />);
+  const { container } = render(<Button onPress={handleEvent} title="test" />);
 
-  const target = getByTestId('ntl-container').children[0];
-  fireEvent(target, new NativeEvent('press'));
+  fireEvent(container.children[0], new NativeEvent('press'));
   expect(handleEvent).toBeCalledTimes(1);
 });
 
@@ -87,9 +91,13 @@ test('calling a custom event works as well', () => {
   const onMyEvent = jest.fn(({ nativeEvent }) => expect(nativeEvent).toEqual({ value: 'testing' }));
   const MyComponent = ({ onMyEvent }) => <TextInput value="test" onChange={onMyEvent} />;
 
-  const { getByTestId } = render(<MyComponent onMyEvent={onMyEvent} />);
-  const target = getByTestId('ntl-container').children[0];
-  fireEvent(target, new NativeEvent('myEvent', event));
+  const {
+    container: {
+      children: [input],
+    },
+  } = render(<MyComponent onMyEvent={onMyEvent} />);
+
+  fireEvent(input, new NativeEvent('myEvent', event));
 
   expect(onMyEvent).toHaveBeenCalledWith({
     nativeEvent: { value: 'testing' },