在测试中将JSX转换为h()
的问题。所有配置文件与create-react-app类似,不包括TypeScript
和preact
的更改
我通过create-react-app my-app --script=react-scripts-ts
创建应用程序 - 用于TypeScript项目。然后弹出并将react
更改为preact
(不要使用preact-compat
)。
要迁移到preact
我要将package.json
添加到babel.plugins section
新插件["babel-plugin-transform-react-jsx", { pragma: "h"}]
中 - 以便将<JSX />
转换为h(JSX)
函数调用,而不是默认React.createElement(JSX)
(迁移指南https://preactjs.com/guide/switching-to-preact)。
这很好用。
但是测试具有不同的转换<JSX />
配置:它转换为React.createElement(JSX)
是默认的。在测试中我收到错误ReferenceError: React is not defined at Object.<anonymous> (src/Linkify/Linkify.test.tsx:39:21)
。如果我在测试和测试文件中手动将<JSX />
更改为h(SomeComponent)
- 它可以正常工作。
如何将<JSX />
转换为h(JSX)
进行测试?
// typescriptTransform.js
// Copyright 2004-present Facebook. All Rights Reserved.
'use strict';
const fs = require('fs');
const crypto = require('crypto');
const tsc = require('typescript');
const tsconfigPath = require('app-root-path').resolve('/tsconfig.json');
const THIS_FILE = fs.readFileSync(__filename);
let compilerConfig = {
module: tsc.ModuleKind.CommonJS,
jsx: tsc.JsxEmit.React,
};
if (fs.existsSync(tsconfigPath)) {
try {
const tsconfig = tsc.readConfigFile(tsconfigPath).config;
if (tsconfig && tsconfig.compilerOptions) {
compilerConfig = tsconfig.compilerOptions;
}
} catch (e) {
/* Do nothing - default is set */
}
}
module.exports = {
process(src, path, config, options) {
if (path.endsWith('.ts') || path.endsWith('.tsx')) {
let compilerOptions = compilerConfig;
if (options.instrument) {
// inline source with source map for remapping coverage
compilerOptions = Object.assign({}, compilerConfig);
delete compilerOptions.sourceMap;
compilerOptions.inlineSourceMap = true;
compilerOptions.inlineSources = true;
// fix broken paths in coverage report if `.outDir` is set
delete compilerOptions.outDir;
}
const tsTranspiled = tsc.transpileModule(src, {
compilerOptions: compilerOptions,
fileName: path,
});
return tsTranspiled.outputText;
}
return src;
},
getCacheKey(fileData, filePath, configStr, options) {
return crypto
.createHash('md5')
.update(THIS_FILE)
.update('\0', 'utf8')
.update(fileData)
.update('\0', 'utf8')
.update(filePath)
.update('\0', 'utf8')
.update(configStr)
.update('\0', 'utf8')
.update(JSON.stringify(compilerConfig))
.update('\0', 'utf8')
.update(options.instrument ? 'instrument' : '')
.digest('hex');
},
};
测试样本:
import { h, render } from 'preact';
import Linkify from './Linkify';
it('renders without crashing', () => {
const div = document.createElement('div');
render(<Linkify children={'text'} />, div);
});
答案 0 :(得分:0)
我找到了解决方案。
我在$my_keys = array_keys($Arr[0]);
// ---- This prevents PDO SQL Injection
$stmt=$pdo->prepare("DESC my_table");
$stmt->execute();
$whitelist_columns=$stmt->fetchAll(PDO::FETCH_COLUMN);
foreach($my_keys as $key){
if(!array_search($key,$whitelist_columns)){ echo "ERROR!"; }
}
// ---- End of prevention
$field_names = implode(",", $my_keys); // build column list
/** @JBH this foreach is needed otherwise the $q_markers will result not PDO placeholders like.
If this is missing, the query inserts all "" values, no matter if you'll adopt bindValue or bindParam**/
foreach($my_keys as &$key){
$key = ":".$key;
}
$q_markers = implode(",", $my_keys); // build PDO value markers
$stmt = $pdo->prepare("INSERT INTO my_table (".$field_names.") VALUES (".$q_markers.")");
foreach($Arr as $key => $val){
foreach($val as $bind_marker => &$bind_val){ /** @ JBH Without "&" here, it will work
only bindValue. Instead with "&", they work both bindParam and bindValue **/
$stmt->bindParam($bind_marker, $bind_val);
}
$stmt->execute();
}
部分babel.plugins
中错了 - 它没有使用。实际上,此pragma使用new plugin ["babel-plugin-transform-react-jsx", { pragma: "h"}]
- tsconfig.json
但是,该指令并未在"jsxFactory": "h"
中使用。
我扩展了编译器选项
typescriptTransform.js
希望它会有用。