Files
react-native/Libraries/NewAppScreen/components/Header.js
T
Nick Gerleman 41f145fa47 Add testID to NewAppScreen Header Component (#31652)
Summary:
The RN OSS release process includes manual testing that a new template app can be started under various platforms, JS engines, etc. This should ideally be automated, to help reduce wasted engineer-time, and to allow reliably increasing release velocity.

`react-native-windows` does already have tests to create and build template projects across our matrix, but they do not do any runtime validation on the newly created app. Adding a `testID` to the new app screen header gives us something to search for in black-box testing to validate that the app started successfully. This should help catch cases where a sample project in repo has changes not reflected in a newly created template app.

## Changelog

<!-- Help reviewers and the release process by writing your own changelog entry. For an example, see:
https://github.com/facebook/react-native/wiki/Changelog
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[Internal] [Added] - Add testID to NewAppScreen Header Component

Pull Request resolved: https://github.com/facebook/react-native/pull/31652

Test Plan: Did not manually validate the change, though did check that `ImageBackground` forwards props to `Image`, and that `Image` is aware of `testID` and will forward to the native component.

Reviewed By: kacieb

Differential Revision: D28907197

Pulled By: p-sun

fbshipit-source-id: db3974294afba25878383f1955cad37b69d95da3
2021-06-04 13:14:48 -07:00

74 lines
1.7 KiB
JavaScript

/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @flow strict-local
* @format
*/
import type {Node} from 'react';
import {ImageBackground, StyleSheet, Text, useColorScheme} from 'react-native';
import React from 'react';
import Colors from './Colors';
import HermesBadge from './HermesBadge';
const Header = (): Node => {
const isDarkMode = useColorScheme() === 'dark';
return (
<ImageBackground
accessibilityRole="image"
testID="new-app-screen-header"
source={require('./logo.png')}
style={[
styles.background,
{
backgroundColor: isDarkMode ? Colors.darker : Colors.lighter,
},
]}
imageStyle={styles.logo}>
<HermesBadge />
<Text
style={[
styles.text,
{
color: isDarkMode ? Colors.white : Colors.black,
},
]}>
Welcome to
{'\n'}
React Native
</Text>
</ImageBackground>
);
};
const styles = StyleSheet.create({
background: {
paddingBottom: 40,
paddingTop: 96,
paddingHorizontal: 32,
},
logo: {
opacity: 0.2,
overflow: 'visible',
resizeMode: 'cover',
/*
* These negative margins allow the image to be offset similarly across screen sizes and component sizes.
*
* The source logo.png image is 512x512px, so as such, these margins attempt to be relative to the
* source image's size.
*/
marginLeft: -128,
marginBottom: -192,
},
text: {
fontSize: 40,
fontWeight: '700',
textAlign: 'center',
},
});
export default Header;