ErrorPro

diff --git a/node_modules/lottie-ios/lottie-swift/src/Private/LayerContainers/CompLayers/CompositionLayer.swift b/node_modules/lottie-ios/lottie-swift/src/Private/LayerContainers/CompLayers/CompositionLayer.swift
index dd947ec..bc234e6 100644
--- a/node_modules/lottie-ios/lottie-swift/src/Private/LayerContainers/CompLayers/CompositionLayer.swift
+++ b/node_modules/lottie-ios/lottie-swift/src/Private/LayerContainers/CompLayers/CompositionLayer.swift
@@ -143,7 +143,7 @@ class CompositionLayer: CALayer, KeypathSearchable {
   }

   func updateRenderScale() {
-    self.contentsScale = self.renderScale
+    /// To be overridden by subclass

ErrorPro

1. Algorithms
2. software design patterns

• observer (redux)
• adapter(carrying)

3. testing

• jest
• enzyme

4. javascript

• es5/es6/es7(stage 1, stage 0)
• const vs let

ErrorPro

// create a graphlhttp middleware
const middleware = graphqlHTTP({
  schema,
  rootValue: {
    id: 'viewer',
    loaders: {
      countries: () => countriesMock,
    },
  },
});

ErrorPro

import RelayQueryResponseCache from 'relay-runtime/lib/RelayQueryResponseCache';

const cache = new RelayQueryResponseCache({ size: 250, ttl: 60 * 5 * 1000 });

export default new Environment({
  network: Network.create(fetchQuery),
  store: new Store(new RecordSource()),
});

const fetchQuery = async function wrappedFetchQuery(

ErrorPro

`
  query UserQuery {
    user {
      firstName
      lastName
    }
  }
`

ErrorPro

import React from 'react';
import Button from './Button';
import renderer from 'react-test-renderer';

/* other tests */

test('renders with 0 as an initial state of counter', () => {
  const component = renderer.create(
    <Button onClick={() => {}} label="this is test label" />
  );

ErrorPro

import React from 'react';
import Button from './Button';
import renderer from 'react-test-renderer';

test('renders button with passed props', () => {
  const component = renderer.create(
    <Button onClick={() => {}} label="test label" />
  );

  expect(component.toJSON()).toMatchSnapshot();

ErrorPro

import React from 'react';
import Button from './Button';
import renderer from 'react-test-renderer';
import Enzyme, { mount } from 'enzyme';
import Adapter from 'enzyme-adapter-react-16';

Enzyme.configure({ adapter: new Adapter() });

/* other tests */

ErrorPro

import React from 'react';
import Dump from './Dump';
import renderer from 'react-test-renderer';

test('dump components renders initially', () => {
  const component = renderer.create(
    <Dump onChange={() => {}} label="Hi i am a dump component" />
  );

  expect(component.toJSON()).toMatchSnapshot();

ErrorPro

import sum from './sum';

test('pure function returns the same output for the same input', () => {
  expect(sum(2, 2)).toBe(4);
});