mocha unexpected token export

If however, esm is loaded too late, then mocha will use the built-in require , and which will throw the SyntaxError: Unexpected token { when trying to require test files with import/export syntax. To get a GitHub token, visit the developer settings page of your account and generate one. I know Mocha is not ready for esm, unfortunately I have no experience with esm. The equal sign shouldn't be a problem because yargs is able to parse them both into exactly the same result, but mocha must be doing it's own process.argv checking and butchering/overriding yargs output args object. EDIT: --require is also a node flag, so we could put --require esm directly into nodeArgs. I'm really confused, many topics here on stackoverflow have this error, but they are all about babel presets and transpiling the code. Mocha is a feature-rich JavaScript test framework running on Node.js and in the browser, making asynchronous testing simple and fun.Mocha tests run serially, allowing for flexible and accurate reporting, while mapping uncaught exceptions to the correct test cases. anyway--until we track this down, we should revert that change. Since handleRequires is called in the .check validation (below). Loading esm via args must be done exactly one way: mocha --require esm works A story as old as time, not all the stories involve computers and peripherals, but the tale is known by all do-it-your-selfers, home-depot-excursioners, and other fixers-of-small-things. Now if we try to exacute the above, we'd get 'unexpected token "export"' appearing. In your second example: where do you set the reporter to 'nyan'? Learn more, Possible Bug with mocha new configuration file, * The implementation relies on Node's `require` to execute. [duplicate]. If there already have been calls to the native node require, esm fails unless we spawn a child-process. The parsing result should be the same, independently of wether options have been supplied by RC file or CLI (except the reporter). NetBeans IDE - ClassNotFoundException: net.ucanaccess.jdbc.UcanaccessDriver, CMSDK - Content Management System Development Kit, sort function breaks in the presence of NaN, except when it doesn't, Hovering effects other s in table, Twig render layout and include template not working, ImportError: Could not find 'cudnn64_7.dll' , while importing tensorflow. @JaseP88 @flinders-corey Do you have some time left? they're used to log you in. We use essential cookies to perform essential website functions, e.g. Chai. @benquinteros_twitter have you installed nyc in your local repo ? The data export or copy to clipboard functions have been changed. privacy statement. Dropdown menu not working after I've added cookie, How can I check collisions between actors in pygame using “actor.collidepoint(pos)” [duplicate], How to query data from database from using query string values, Paging Library v3 is not sending any data to my PagingDataAdapter, I am attempting to have a scroll-able "dialogue" modal component from Material Design appear when a certain li is clickedThis would be appearing inside of a modal itself, I have a HANA table with 2 columns and I am trying to update one column for instanceI am really new to jSON/HANA and I am trying to parse a json array by using a SQL query to loop through the json object and update my table with the updated values. simple, flexible, fun. @Ryukote: Hello everyone. For this test it does not really matter which node flag you choose. Mocha is a feature-rich JavaScript test framework running on Node.js and in the browser, making asynchronous testing simple and fun.Mocha tests run serially, allowing for flexible and accurate reporting, while mapping uncaught exceptions to the correct test cases. NodeJS plans to support import/export es6 (es2015) modules 1 answer nodejs 8 import module - require or import? Anyway require(modpath); throws an error when the module is not found. When I debug this weird case, I can see that esm is loaded in the main process, since there is an entry in require.cache. if (Object.keys(nodeArgs).length || mochaArgs.require && mochaArgs.require.includes('esm')) {. yargs must be running .check() sooner on process.argv's args vs those passed in via yargs.config(). - Something I don't do. Now if we try to exacute the above, we'd get 'unexpected token "export"' appearing. We’ll need to install the babel-core package to get access to its require hook: Once complete, you’ll need to i… This confused me. If your project is hosted on travis-ci.org, remove the --pro flag. almost the same as the \"program\" and \"args\" sections of the debugger config esm overrides node's require function to extend functionality. I would like to figure this out together because there's definitely something weird going on. When I add on L13 following line: ==> it works without spawning a child-process For example: I'm not sure if these two issues are related or not. When a child-process is spawned, the environment is inherited and esm is already loaded. If yes, please patch "bin/mocha" as per #3983 and tell me wether your case is working correctly? When I change "bin/mocha" the same way on L13 / L156: ==> it fails. Mocha runs if I have this in my package.json file: Mocha fails to run if I have this in my package.json file: Interestingly it runs successfully if I have this: I need to understand first why it works via CLI and - with the identical parsing result - does not work via configuration file. How to get the date/time of the email when it has been submitted through the the form? I'm having trouble getting mocha-sidebar to work. The require modules are loaded here: lib/cli/run-helpers.js. They have some amazing debugging features, but I was having a really hard time getting it to work with… Sorry if I sound rude. I had a similar issue to this happen to me earlier today. You signed in with another tab or window. I'm unable to reproduce this in a way that makes much sense. they're used to gather information about the pages you visit and how many clicks you need to accomplish a task. How to parse json object to update HANA table? Already on GitHub? My theory for a longterm fix has to do with at what point the mocha function handleRequires starts loading esm. Hmm but surely child process executes the requires inside at top of cli.js + run.js before it finally requires esm via handleRequires (i.e. By default, if Jest sees a Babel config, it will use that to transform your files, ignoring "node_modules". Vue Unit Testing with Jest - Unexpected Token Export i'm trying to test my vue app with jest and vue test utils. If you’re having trouble upgrading to Babel 6, start with Six Things You Need To Know About Babel 6.. Specifically using the following in my package.json file. I'm having trouble getting mocha-sidebar to work. Unexpected token export. For example: Warning: Cannot find any files matching pattern "esm". Currently supported in modern browsers and Node.js for many months now, ES Modules will over time render various ad-hoc module systems currently in use obsolete. We have two options at this point, we can rewrite our code so that we actually use the CommonJS module syntax: console.log(args.require). As I found this thread via a Google search to work out what was wrong, I thought it worth mentioning. Was unsure what was meant by "main module". And I would like to utilize the configuration file, otherwise when I go debug and run individual spec and individual pieces of mocha's describe and it block I have to copy and paste required modules into my IDE. @flinders-corey could you run one test for me, please? child or main would have same problem)? Chalking it down to quirk of esm so happy to accept letting node handle it despite not completely understanding why. No `describe` or `it` My source code is transpiled from ES to CJS but libraries in `node_modules appear not to be. I wonder wether this could make a difference. in the sideBar-test output i'm currently getting an exception about exporting a method with SyntaxError: Unexpected token export. Below are examples to clarify the syntax. Thank you! Would appreciate any … But since it's working one way (CLI), it should work the other way (RC file) as well. Do you use more than one config file? [duplicate] 1 answer The problem I am running into is that I use the lodash-es library which appears to only export ES2015 code. ... Mocha is definitely doing some funky with process.argv internally. have you installed nyc in your local repo ? I'm trying to learn how to set up Mocha testing. The parsing of .mocharc.js works correctly, I just checked that. Just put your code to do those things directly in the `beforeEach` callback. @maty21. Mocha fits in nicely with SuperTest, helping you organize your tests in your team's preferred way. It's not loaded in the main module, so probably too late and the main process fails. Can I propose an alternative, softer revert. Odd. Using version 6.1.4 I was able to use mocha with esm with the following sections in my package.json file: Post upgrade to mocha 6.2.0 this did not work. @juergba I can confirm that with the patch applied as per #3983 my use case works. GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. So I have no explanation for now. now, back in my mochajs/mocha working copy: The above only works if I fix a bug; module.paths is being set in (inexplicably) two places (cli.js and lib/mocha.js) and not doing much of anything. # mocha.opts --require babel-register … Also, make sure you vet your trainers. create package dir mkdir /tmp/foo && cd /tmp/foo, run node_modules/.bin/mocha -r esm test.js; success. Millions of developers and companies build, ship, and maintain their software on GitHub — the largest and most advanced development platform in the world. It is saying it can't find module scripts/myfile.My directory structure looks like public/scripts/myfile but I thought setting NODE_PATH=public would account for this and let me import straight from scripts. The reason behind this is simple - Node.js uses the CommonJS Module syntax which assumes two other keywords: require() and module.exports. Successfully merging a pull request may close this issue. I am getting. unexpected token import in mocha when running from nodejs (no babel) [duplicate], typescript: tsc is not recognized as an internal or external command, operable program or batch file, In Chrome 55, prevent showing Download button for HTML 5 video, RxJS5 - error - TypeError: You provided an invalid object where a stream was expected. So you’ve written a useful little app with ES6, and being the excellent developer that you are, you want to test it. I would like for the configuration file to work so I don't have to manually set the options in my IDE mocha test plugin for each spec file. NodeJS plans to support import/export es6 (es2015) modules 1 answer nodejs 8 import module - require or import? The ES Module standard defines a way to build and assemble JavaScript modules. moving the call in cli.js to within the handleRequires function means I can require a local esm while running mocha from an arbitrary location. (4) I received the same error, but my webpack/babel configs looked correct. You can either start over or choose tutorials from the Mocha AE help menu and look at the tutorial that explains the new features. Sign in You should have looked at the tutorials that were offered when you first launched Mocha AE. check if a point is inside a polygon from a list of lists in javascript, Make a button that every one can click ones, NodeJS plans to support import/export es6 (es2015) modules, nodejs 8 import module - require or import? We use optional third-party analytics cookies to understand how you use GitHub.com so we can build better products. Learn more, We use analytics cookies to understand how you use our websites so we can make them better, e.g. @juergba that fixed it for me. If however, esm is loaded too late, then mocha will use the built-in require, and which will throw the SyntaxError: Unexpected token { when trying to require test files with import/export syntax. [duplicate] 1 answer Hello, I can't get mocha-sidebar to run and I suspect it's because I'm using mocha cakes on top of mocha in order to have given/when/then type of scenarios. Otherwise in node_modules\mocha\lib\cli\cli.js add in L38: So once again, the easiest fix is to just require("esm") before mocha/lib/mocha.js is even loaded so that it won't hold on to a reference of the old builtin require rather it'll inherit the new one. This way Node has been extended with esm before Mocha is launched (in a child process) and we are on the safe side. I only have 1 config file in the root. ive installed it according to the documentation but when running a test it throws this error: In my debugging I can see an esm entry inside require.cache at beginning of loadFiles (i.e. Now mocha should run in a child process, not in the main process. Debugging ES Modules in Node.js and Mocha Using VS Code 2019-01-17T18:30:00.000Z. One of the cool things about Mocha is it allows you to write your tests in different styles like BDD (it, describe, etc.) As I mention it is able to find the config file and set a lot of the other flags just fine. Anyways my .mocharc.js file is in the root directory of my project and its content is. We’ll occasionally send you account related emails. This question already has an answer here: I am receiving an error on running the test through npm test. My codebase is written in typescript, but some modules seem to be javascript, which causes this error: C:\work\three\node_modules\three\examples\jsm\loaders\GLTFLoader.js:1 import { ^^^^^ SyntaxError: Cannot use import statement outside a module My setup is: package.json (4) I received the same error, but my webpack/babel configs looked correct. This guide is part of The Complete Guide to ES6 with Babel 6 series. When I change "bin/_mocha" as proposed by @jdalton in #3703 ==> it works. Jani Hartikainen gets you started with unit testing your JavaScript — an important, but often overlooked part of development — using Mocha and Chai. ‍♂. Noobie in javascript, trying to have a select button [closed], Display and autoplay youtube video in popup on document load, How to use get method in raspberry pi3? I apologize if I am going through the wrong avenue for help. js: line 1: `var http = require('http'); my code is var http = require('http'); http. I don't think this helps though. to your account, Hi, I need help with an issue with mocha new configuration file. I am unable to use coverage button in sidebar. A possible hotfix would be to temporarily revert #3827 so that all processes launched from CLI load in a child process. # login to travis travis login --pro # use this if you’re using two factor authentication travis login --pro --github-token enter-github-token-here. Test suite failed to run Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e.g. Without the .babelrc all 14 tests are failing. That is some excellent detective work mobalt! I'll see if I can find any work around. Anyways my .mocharc.js file is in the root directory of my project and its content is, when i run the cli mocha "./test/**/*.spec.tsx" I get an unexpected token export in one of my node_modules dependencies, when I specify explicitly through the cli mocha -r ts-node/register -r esm --file "./test/testSetup.ts" --ui bdd "./test/**/*.spec.tsx" it is able to run the test just fine. The child runs successfully without depending on the require esm in handleRequires. For more information, see our Privacy Statement. Ionic 2 - how to make ion-button with icon and text on two lines? --compilerOptions wont’ work.. What you need to do is customize how you register ts-node.My case was a little bit different from yours, I wanted it to use test/tsconfig.json, which contained settings needed by my test code.If I just used --require ts-node/register, it was using a default configuration that did not contain the settings needed to run my tests. It is a st… Can anyone confirm that this sidebar is incompatible with mocha cakes? Skip this section if you’ve already installed Babel 6 and any required presets/plugins. The esm module wasn't being called. It can't be the parsing since there is no difference. It's not yargs which does the CLI and config file parsing, this job is done earlier by yargs-parser in "lib/cli/options.js". Package 'esm': spawn child-process for correct loading, Mocha 6.2.0 gives error "Cannot find module esm", `--require esm` works as command-line arg, but not in `mocha.opts`. Learn more. Debugging ES Modules in Node.js and Mocha Using VS Code 2019-01-17T18:30:00.000Z. * the test interface functions and will be subject to its cache. oh, the file ../../api/helpers/JobCountNumber.js does exist. Babel 6 CLI: Unexpected token export? Empty import (TypeScript, ES6) Some modules do not export any variables and only have side-effects, such as mutating the global window (global variables) or prototypes (e.g. Have a question about this project? --compilerOptions wont’ work.. What you need to do is customize how you register ts-node.My case was a little bit different from yours, I wanted it to use test/tsconfig.json, which contained settings needed by my test code.If I just used --require ts-node/register, it was using a default configuration that did not contain the settings needed to run my tests. mocha --require=esm does not work. So I have no explanation why CLI should work and RC file does not. Currently supported in modern browsers and Node.js for many months now, ES Modules will over time render various ad-hoc module systems currently in use obsolete. It doesn't bother me. and TDD (suite, test, etc.). @craigtaub Thank you. Next we should export global variables from test utils to reduce code duplication through spec files. I want to have a button on my page that count +1 every time but every person can click it ones on their pc or phoneHow do i make this? Then please tell me what you get for CLI and config file run. But this seems hacky, replacing require after the fact. Since mocha uses node's built-in requireto load test files, if esm is loaded early enough, mocha will use esm's require when loading the files. I would love if anyone could assist me in getting it up and running :) --no-deprecation. Hrmm thank you for your help. What should I configure in order to use it? require = require('esm')(module); My conclusion is: esm can't be loaded just somewhere in middle of mocha's code. Empty import (TypeScript, ES6) Some modules do not export any variables and only have side-effects, such as mutating the global window (global variables) or prototypes (e.g. hey @Revanth453.You are using the word import, which is not supported by the node environment you are running.To use features that are not supported yet you have to transpile the code before you run it as @ORESoftware mentions.. To run the babel transpiler with mocha for example, use babel-register as a first argument in the require mocha option. Now I'm not using a transpiler or a anything like it, as I saw that the node version (8.9) I use supports ES2015 almost completely (see here, only tail call optimization is absent). It doesn't seem like the require flag attribute is working correctly with more than one modules. The ES Module standard defines a way to build and assemble JavaScript modules. You can always update your selection by clicking Cookie Preferences at the bottom of the page. ... module, __filename, __dirname) { import React from 'react'; ^^^^^ SyntaxError: Unexpected token import at Object.exports.runInThisContext ... To circumvent it will need Babel ES2015 preset and a require hook to mocha-setup.js file. [closed], How to use a global variable in several files. The export parameters specify individual named exports, while the import * as name syntax imports all of them. @Fankohr_gitlab. @juergba patching bin/mocha with that solution works. @Munter: ok. That's exactly what you should use hooks for. Would appreciate any … If I bother you with my questions, please just tell me. Cube. My conclusion is: esm can't be loaded just somewhere in middle of mocha's code. it's not plain JavaScript. I needed to change my package.json file so that esm was explicitly called via the command line. simple, flexible, fun. Babel 6 CLI: Unexpected token export? The parsing result of --require is identical both ways. My thanks to you and the team for working on this issue. Note that when I add a .babelrc file the test suite passes for all but one test, where I get the same Unexpected Token Import, which seems bizarre considering there are a dozen passing tests that all use ES6 imports. We spawn a child-process if: In bin/mocha: The default extension is only set to js, you could add the extensions you need like ts /... and give it another try. We have two options at this point, we can rewrite our code so that we actually use the CommonJS module syntax: If you need this to import a module that has both a default export and named exports, then this module might not have one single responsibility. Make sure you npm uninstall each one to remove them from node_modulestoo. I know it is able to find my mocha config file. By clicking “Sign up for GitHub”, you agree to our terms of service and Here's another gem: If you specify require: esm somewhere in a config file (package.json, mocharc.yml, ...), having the standalone word "esm" present anywhere in the CLI args will be enough for it to work. We should treat --require esm as a Node flag and remove any esm loading out of Mocha. The reason behind this is simple - Node.js uses the CommonJS Module syntax which assumes two other keywords: require() and module.exports. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. I was getting the dreaded SyntaxError: Unexpected token { error for my import statement. Visual Studio Code is a powerful IDE, and my editor of choice while working on RxJS. this might be the best course of action if it's fixing people. // now no error will be thrown when loading index.spec.js. I'm starting to doubt on this esm module. In your package.json file replace --require esm by a node flag like eg. If you need this to import a module that has both a default export and named exports, then this module might not have one single responsibility. Meanwhile I think it's a bad hack to manipulate Node out of running Mocha. It's not loaded in the main module, so probably too late and the main process fails. The name parameter is the name of the \"module object\" which will be used as a kind of namespace to refer to the exports. Since mocha uses node's built-in requireto load test files, if esm is loaded early enough, mocha will use esm's require when loading the files. You’ve got some experience testing with Mocha, so you write a few tests and run them. We use optional third-party analytics cookies to understand how you use GitHub.com so we can build better products. Babel 6 doesn’t play well with its younger self, so start by removing any older Babel packages from package.json — babel, babel-core, etc. It is saying it can't find module scripts/myfile.My directory structure looks like public/scripts/myfile but I thought setting NODE_PATH=public would account for this and let me import straight from scripts. before requiring in users test spec). polyfills). node --require esm mocha polyfills).

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