Best JavaScript code snippet using jest
index.js
Source:index.js
...28 * case-insensitive environment variable access. On other platforms, case29 * sensitivity matters. This method creates an empty "`process.env`" object30 * type that works for all platforms.31 */32function createProcessEnv(...sources) {33 return Object.assign(utils_terminal_1.TERMINAL_INFO.windows ? utils_object_1.createCaseInsensitiveObject() : {}, ...sources);34}35exports.createProcessEnv = createProcessEnv;36/**37 * Split a PATH string into path parts.38 */39function getPathParts(envpath = process.env.PATH || '') {40 return envpath.split(pathlib.delimiter);41}42exports.getPathParts = getPathParts;43/**44 * Resolves when the given amount of milliseconds has passed.45 */46async function sleep(ms) {...
create_process_object.js
Source:create_process_object.js
...11// The "process.env" object has a bunch of particularities: first, it does not12// directly extend from Object; second, it converts any assigned value to a13// string; and third, it is case-insensitive in Windows. We use a proxy here to14// mimic it (see https://nodejs.org/api/process.html#process_process_env).15function createProcessEnv() {16 if (typeof Proxy === 'undefined') {17 return deepCyclicCopy(process.env);18 }19 // $FlowFixMe: Apparently Flow does not understand that this is a prototype.20 const proto: Object = Object.getPrototypeOf(process.env);21 const real = Object.create(proto);22 const lookup = {};23 const proxy = new Proxy(real, {24 deleteProperty(target, key) {25 for (const name in real) {26 if (real.hasOwnProperty(name)) {27 if (typeof key === 'string' && process.platform === 'win32') {28 if (name.toLowerCase() === key.toLowerCase()) {29 delete real[name];30 delete lookup[name.toLowerCase()];31 }32 } else {33 if (key === name) {34 delete real[name];35 delete lookup[name];36 }37 }38 }39 }40 return true;41 },42 get(target, key) {43 if (typeof key === 'string' && process.platform === 'win32') {44 return lookup[key in proto ? key : key.toLowerCase()];45 } else {46 return real[key];47 }48 },49 set(target, key, value) {50 const strValue = '' + value;51 if (typeof key === 'string') {52 lookup[key.toLowerCase()] = strValue;53 }54 real[key] = strValue;55 return true;56 },57 });58 return Object.assign(proxy, process.env);59}60export default function() {61 const process = require('process');62 const newProcess = deepCyclicCopy(process, {63 blacklist: BLACKLIST,64 keepPrototype: true,65 });66 newProcess[Symbol.toStringTag] = 'process';67 // Sequentially execute all constructors over the object.68 let proto = process;69 while ((proto = Object.getPrototypeOf(proto))) {70 if (typeof proto.constructor === 'function') {71 proto.constructor.call(newProcess);72 }73 }74 newProcess.env = createProcessEnv();75 return newProcess;...
createProcessObject.js
Source:createProcessObject.js
...11// The "process.env" object has a bunch of particularities: first, it does not12// directly extend from Object; second, it converts any assigned value to a13// string; and third, it is case-insensitive in Windows. We use a proxy here to14// mimic it (see https://nodejs.org/api/process.html#process_process_env).15function createProcessEnv() {16 if (typeof Proxy === 'undefined') {17 return deepCyclicCopy(process.env);18 }19 const proto: Object = Object.getPrototypeOf(process.env);20 const real = Object.create(proto);21 const lookup = {};22 const proxy = new Proxy(real, {23 deleteProperty(target, key) {24 for (const name in real) {25 if (real.hasOwnProperty(name)) {26 if (typeof key === 'string' && process.platform === 'win32') {27 if (name.toLowerCase() === key.toLowerCase()) {28 delete real[name];29 delete lookup[name.toLowerCase()];30 }31 } else {32 if (key === name) {33 delete real[name];34 delete lookup[name];35 }36 }37 }38 }39 return true;40 },41 get(target, key) {42 if (typeof key === 'string' && process.platform === 'win32') {43 return lookup[key in proto ? key : key.toLowerCase()];44 } else {45 return real[key];46 }47 },48 set(target, key, value) {49 const strValue = '' + value;50 if (typeof key === 'string') {51 lookup[key.toLowerCase()] = strValue;52 }53 real[key] = strValue;54 return true;55 },56 });57 return Object.assign(proxy, process.env);58}59export default function() {60 const process = require('process');61 const newProcess = deepCyclicCopy(process, {62 blacklist: BLACKLIST,63 keepPrototype: true,64 });65 newProcess[Symbol.toStringTag] = 'process';66 // Sequentially execute all constructors over the object.67 let proto = process;68 while ((proto = Object.getPrototypeOf(proto))) {69 if (typeof proto.constructor === 'function') {70 proto.constructor.call(newProcess);71 }72 }73 newProcess.env = createProcessEnv();74 newProcess.send = () => {};75 return newProcess;...
dev.js
Source:dev.js
...3const { build } = require("./base")4const { parsed: parsedEnv } = dotenv.config({5 path: path.join(__dirname, "../../../.env")6})7function createProcessEnv(env) {8 if (env) {9 const result = {}10 for (const [key, value] of Object.entries(env)) {11 result[`process.env.${key}`] = JSON.stringify(value)12 }13 return result14 } else {15 return {}16 }17}18const devConfig = {19 sourcemap: "inline",20 define: {21 ...createProcessEnv(parsedEnv),22 "process.env.NODE_ENV": JSON.stringify("development")23 },24 inject: [path.join(__dirname, "sourcemaps.js")]25}...
LambdaTest’s Jest Testing Tutorial covers step-by-step guides around Jest with code examples to help you be proficient with the Jest framework. The Jest tutorial has chapters to help you learn right from the basics of Jest framework to code-based tutorials around testing react apps with Jest, perform snapshot testing, import ES modules and more.
|<p>it('check_object_of_Car', () => {</p><p>
expect(newCar()).toBeInstanceOf(Car);</p><p>
});</p>|
| :- |
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