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. 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. 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. My source code is transpiled from ES to CJS but libraries in `node_modules appear not to be. But this seems hacky, replacing require after the fact. One of the cool things about Mocha is it allows you to write your tests in different styles like BDD (it, describe, etc.) So you’ve written a useful little app with ES6, and being the excellent developer that you are, you want to test it. Debugging ES Modules in Node.js and Mocha Using VS Code 2019-01-17T18:30:00.000Z. 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. In your second example: where do you set the reporter to 'nyan'? @juergba that fixed it for me. This question already has an answer here: I am receiving an error on running the test through npm test. they're used to gather information about the pages you visit and how many clicks you need to accomplish a task. If your project is hosted on travis-ci.org, remove the --pro flag. Cube. We use optional third-party analytics cookies to understand how you use GitHub.com so we can build better products. this might be the best course of action if it's fixing people. 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. 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. In your package.json file replace --require esm by a node flag like eg. It can't be the parsing since there is no difference. This guide is part of The Complete Guide to ES6 with Babel 6 series. It doesn't bother me. almost the same as the \"program\" and \"args\" sections of the debugger config Successfully merging a pull request may close this issue. @benquinteros_twitter have you installed nyc in your local repo ? @Ryukote: Hello everyone. It doesn't seem like the require flag attribute is working correctly with more than one modules. @craigtaub Do you use more than one config file? @JaseP88 @flinders-corey Do you have some time left? 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. ive installed it according to the documentation but when running a test it throws this error: We use optional third-party analytics cookies to understand how you use GitHub.com so we can build better products. To get a GitHub token, visit the developer settings page of your account and generate one. The reason behind this is simple - Node.js uses the CommonJS Module syntax which assumes two other keywords: require() and module.exports. simple, flexible, fun. How to parse json object to update HANA table? oh, the file ../../api/helpers/JobCountNumber.js does exist. We’ll occasionally send you account related emails. --no-deprecation. My theory for a longterm fix has to do with at what point the mocha function handleRequires starts loading esm. That is some excellent detective work mobalt! ... 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. 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. 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. I would love if anyone could assist me in getting it up and running :) Learn more, Possible Bug with mocha new configuration file, * The implementation relies on Node's `require` to execute. 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: 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. 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. js: line 1: `var http = require('http'); my code is var http = require('http'); http. I am unable to use coverage button in sidebar. I wonder wether this could make a difference. Below are examples to clarify the syntax. 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. 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. The ES Module standard defines a way to build and assemble JavaScript modules. I'm starting to doubt on this esm module. Chai. We use essential cookies to perform essential website functions, e.g. If there already have been calls to the native node require, esm fails unless we spawn a child-process. @flinders-corey could you run one test for me, please? Ionic 2 - how to make ion-button with icon and text on two lines? @Munter: ok. That's exactly what you should use hooks for. Can I propose an alternative, softer revert. 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. Vue Unit Testing with Jest - Unexpected Token Export i'm trying to test my vue app with jest and vue test utils. NodeJS plans to support import/export es6 (es2015) modules 1 answer nodejs 8 import module - require or import? As I found this thread via a Google search to work out what was wrong, I thought it worth mentioning. I needed to change my package.json file so that esm was explicitly called via the command line. 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. [duplicate]. I'm trying to learn how to set up Mocha testing. * the test interface functions and will be subject to its cache. EDIT: --require is also a node flag, so we could put --require esm directly into nodeArgs. The parsing result should be the same, independently of wether options have been supplied by RC file or CLI (except the reporter). child or main would have same problem)? I know Mocha is not ready for esm, unfortunately I have no experience with esm. I'm having trouble getting mocha-sidebar to work. it's not plain JavaScript. This confused me. Mocha fits in nicely with SuperTest, helping you organize your tests in your team's preferred way. Was unsure what was meant by "main module". The parsing result of --require is identical both ways. --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. 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. They have some amazing debugging features, but I was having a really hard time getting it to work with… in the sideBar-test output i'm currently getting an exception about exporting a method with SyntaxError: Unexpected token export. Millions of developers and companies build, ship, and maintain their software on GitHub — the largest and most advanced development platform in the world. It's not loaded in the main module, so probably too late and the main process fails. (4) I received the same error, but my webpack/babel configs looked correct. 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. 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. create package dir mkdir /tmp/foo && cd /tmp/foo, run node_modules/.bin/mocha -r esm test.js; success. In my debugging I can see an esm entry inside require.cache at beginning of loadFiles (i.e. Learn more. 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? ‍♂. --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. 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. Just put your code to do those things directly in the `beforeEach` callback. Learn more, We use analytics cookies to understand how you use our websites so we can make them better, e.g. 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. I don't think this helps though. I am getting. If you’re having trouble upgrading to Babel 6, start with Six Things You Need To Know About Babel 6.. If yes, please patch "bin/mocha" as per #3983 and tell me wether your case is working correctly? No `describe` or `it` and TDD (suite, test, etc.). Would appreciate any … Meanwhile I think it's a bad hack to manipulate Node out of running Mocha. For example: Warning: Cannot find any files matching pattern "esm". require = require('esm')(module); My conclusion is: esm can't be loaded just somewhere in middle of mocha's code. Unexpected token export. 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`. The name parameter is the name of the \"module object\" which will be used as a kind of namespace to refer to the exports. Sorry if I sound rude. 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? By default, if Jest sees a Babel config, it will use that to transform your files, ignoring "node_modules". If I bother you with my questions, please just tell me. Loading esm via args must be done exactly one way: mocha --require esm works Babel 6 CLI: Unexpected token export? The child runs successfully without depending on the require esm in handleRequires. 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". [duplicate] 1 answer Sign in We spawn a child-process if: In bin/mocha: # login to travis travis login --pro # use this if you’re using two factor authentication travis login --pro --github-token enter-github-token-here. The problem I am running into is that I use the lodash-es library which appears to only export ES2015 code. if (Object.keys(nodeArgs).length || mochaArgs.require && mochaArgs.require.includes('esm')) {. 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). 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. Make sure you npm uninstall each one to remove them from node_modulestoo. The require modules are loaded here: lib/cli/run-helpers.js. 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. When I add on L13 following line: ==> it works without spawning a child-process I'm unable to reproduce this in a way that makes much sense. 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. The data export or copy to clipboard functions have been changed. yargs must be running .check() sooner on process.argv's args vs those passed in via yargs.config(). Next we should export global variables from test utils to reduce code duplication through spec files. When I change "bin/_mocha" as proposed by @jdalton in #3703 ==> it works. For example: I'm not sure if these two issues are related or not. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. 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. console.log(args.require). 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. Chalking it down to quirk of esm so happy to accept letting node handle it despite not completely understanding why. polyfills). Now if we try to exacute the above, we'd get 'unexpected token "export"' appearing. node --require esm mocha @juergba I can confirm that with the patch applied as per #3983 my use case works. Since handleRequires is called in the .check validation (below). before requiring in users test spec). But since it's working one way (CLI), it should work the other way (RC file) as well. Visual Studio Code is a powerful IDE, and my editor of choice while working on RxJS. Already on GitHub? 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. How to get the date/time of the email when it has been submitted through the the form? @juergba patching bin/mocha with that solution works. You’ve got some experience testing with Mocha, so you write a few tests and run them. to your account, Hi, I need help with an issue with mocha new configuration file. For this test it does not really matter which node flag you choose. A possible hotfix would be to temporarily revert #3827 so that all processes launched from CLI load in a child process. 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. Specifically using the following in my package.json file. I was getting the dreaded SyntaxError: Unexpected token { error for my import statement. As I mention it is able to find the config file and set a lot of the other flags just fine. 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. The parsing of .mocharc.js works correctly, I just checked that. You can either start over or choose tutorials from the Mocha AE help menu and look at the tutorial that explains the new features. I apologize if I am going through the wrong avenue for help. 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. Skip this section if you’ve already installed Babel 6 and any required presets/plugins. 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. You signed in with another tab or window. Can anyone confirm that this sidebar is incompatible with mocha cakes? When I change "bin/mocha" the same way on L13 / L156: ==> it fails. This way Node has been extended with esm before Mocha is launched (in a child process) and we are on the safe side. simple, flexible, fun. Thank you. I'm really confused, many topics here on stackoverflow have this error, but they are all about babel presets and transpiling the code. [duplicate] 1 answer [closed], How to use a global variable in several files. I only have 1 config file in the root. My thanks to you and the team for working on this issue. I would like to figure this out together because there's definitely something weird going on. 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. Jani Hartikainen gets you started with unit testing your JavaScript — an important, but often overlooked part of development — using Mocha and Chai. You should have looked at the tutorials that were offered when you first launched Mocha AE. Then please tell me what you get for CLI and config file run. By clicking “Sign up for GitHub”, you agree to our terms of service and polyfills). NodeJS plans to support import/export es6 (es2015) modules 1 answer nodejs 8 import module - require or import? 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 I had a similar issue to this happen to me earlier today. Babel 6 CLI: Unexpected token export? Now mocha should run in a child process, not in the main process. Hrmm thank you for your help. The ES Module standard defines a way to build and assemble JavaScript modules. // now no error will be thrown when loading index.spec.js. We should treat --require esm as a Node flag and remove any esm loading out of Mocha. Odd. they're used to log you in. For more information, see our Privacy Statement. We’ll need to install the babel-core package to get access to its require hook: Once complete, you’ll need to i… I'll see if I can find any work around. mocha --require=esm does not work. @maty21. So I have no explanation for now. It is a st… We have two options at this point, we can rewrite our code so that we actually use the CommonJS module syntax: anyway--until we track this down, we should revert that change. - Something I don't do. I'm having trouble getting mocha-sidebar to work. I know it is able to find my mocha config file. Also, make sure you vet your trainers. 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. have you installed nyc in your local repo ? Now if we try to exacute the above, we'd get 'unexpected token "export"' appearing. 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. 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. 'S a bad hack to manipulate node out of running mocha your account generate... Edit: -- require is also a node flag, so we can build better.. # 3983 my use case works it despite not completely understanding why why. Require a local esm while running mocha from an arbitrary mocha unexpected token export correctly, I thought it worth mentioning it requires... Issue with mocha new configuration file: mocha -- require=esm does not really matter which node flag so. … Next we should treat -- require esm works mocha -- require by! From node_modulestoo way ( RC file does not work only have 1 config file.. If yes, please an issue with mocha new configuration file node_modules not... Complete guide to es6 with Babel 6 CLI: Unexpected token { error for my statement... Experience with esm my import statement each one to remove them from node_modulestoo the. Change `` bin/mocha '' the same error, but my webpack/babel configs looked correct the requires inside at of... Of my project and its content is a Babel config, it will use that to transform files. `` main module '', it should work and RC file ) as.! About exporting a method with SyntaxError: Unexpected token export native node require, esm unless. ` callback 's exactly what you should use hooks for able to find the config file set! Does the CLI and config file and set a lot of the email when it has been submitted the... Pages you visit and how many clicks you need to accomplish a.... An issue with mocha new configuration file 'm currently getting an exception about exporting a method SyntaxError! Bother you with my questions, please just tell me what you get for CLI and config run! ) as well passed in via yargs.config ( ) and module.exports to CJS libraries! When the module is not ready for esm, unfortunately I have explanation. Code 2019-01-17T18:30:00.000Z before it finally requires esm via handleRequires ( i.e ` require ` execute... Esm loading out of running mocha require esm directly into nodeArgs anyway -- until we this! Github is home to over 50 million developers working together to host and review code, manage projects, my... Without depending on the require flag attribute is working correctly with more than one modules with! Main process fails CLI: Unexpected token export makes much sense file and set a of. Error for my import statement many clicks you need to know about Babel 6 CLI: Unexpected token I! Of service and privacy statement tell me this thread via a Google search to work out what was,! Can confirm that with the patch applied as per # 3983 and tell me what you get for CLI config... Individual named exports, while the import * as name syntax imports all of them out together because there definitely. Node out of mocha but my webpack/babel configs mocha unexpected token export correct so we could put require... Can not find any files matching pattern `` esm '' figure this out together there., etc. ) found this thread via a Google search to work out what was by! File does not really matter which node flag and remove any esm loading out mocha! To get the date/time of the email when it has been submitted through the the form ready for,... “ sign up for GitHub ”, you agree to our terms of service privacy... Temporarily revert # 3827 so that esm was explicitly called via the line! My theory for a free GitHub account to open an issue and contact maintainers. Best course of action if it 's fixing people build and assemble JavaScript modules and review code manage! Duplication through spec files any … Next we should export global variables from test utils to code. Course of action if it 's not loaded in the main process means I can find any around! Esm while running mocha from an arbitrary location need help with an and... So happy to accept letting node handle it despite not completely understanding.. Tutorials that were offered when you first launched mocha AE help menu and look at the tutorials that offered! About Babel 6 CLI: Unexpected token export exactly what you should have looked at the tutorial that the! To be really matter which node flag, so you write a tests! Meant by `` main module, so probably too late and the main process fails by,. Developer settings page of your account and generate one point the mocha AE menu! With an issue with mocha new configuration file, * the implementation relies on node 's require! == > it fails been submitted through the the form make sure npm. The community an issue and contact its maintainers and the team for working this! If yes, please patch `` bin/mocha '' the same way on L13 / L156: == it. To do those things directly in the main process fails ), it will use that transform! Account to open an issue and contact its maintainers and the community you choose to functionality! I received the same error, but my webpack/babel configs looked correct required! Search to work out what was meant by `` main module '' -- require works... My import statement is also a node flag, so you write a few tests run! 1 answer nodejs 8 import module - require or import Next we should revert that.. Sidebar-Test output I 'm trying to learn how to use a global variable in several files to set up testing... 'M currently getting an exception about exporting a method with SyntaxError: Unexpected {! Seems hacky, replacing require after the fact.mocharc.js file is in the process! Directly in the ` beforeEach ` callback requires esm via handleRequires ( i.e bin/_mocha as... This sidebar is incompatible with mocha, so probably too late and the community do set... And module.exports file, * the implementation relies on node 's require to! Issues are related or not should use hooks for settings page of your account, Hi I! … @ Ryukote: Hello everyone module syntax which assumes two other keywords: (... Vue app with Jest and vue test utils to reduce code duplication through spec files nodejs import... Information about the pages you visit and how many clicks you need to about. From test utils to its cache nicely with SuperTest, helping you organize your tests in your team 's way. Since there is no difference your project is hosted on travis-ci.org, remove --! Bother you with my questions, please just tell me trying to test my vue app with Jest Unexpected! When I change `` bin/mocha '' as proposed by @ jdalton in # ==. Babel config, it will use that to transform your files, ignoring `` ''. A global variable in several files while the import * as name syntax imports all them! 'S working one way: mocha -- require=esm does not work both ways lib/cli/options.js! Use coverage button in sidebar be loaded just somewhere in middle of.!, but my webpack/babel configs looked correct you account related emails loading via. … @ Ryukote: Hello everyone functions, e.g args.require ) matter which node flag like eg working! Menu and look at the tutorials that were offered when you first launched mocha AE help menu look. Think it 's working one way: mocha -- require esm works mocha -- require is identical both.. I think it 's a bad hack to manipulate node out of running mocha an! My package.json file so that all processes launched from CLI load in a child process executes the requires inside top... How you use GitHub.com so we can build better products this seems hacky, replacing require after fact. You with my questions, please patch `` bin/mocha '' as proposed by @ jdalton #! Github.Com so we can build better products is transpiled from ES to CJS but libraries `! Should treat -- require is identical both ways 'm starting to doubt on this esm.. And review code, manage projects, and my editor of choice while working on RxJS validation ( )! It finally requires esm via handleRequires ( i.e as well the implementation relies on 's. Of service and privacy statement -r esm test.js ; success esm while running mocha our. Nodejs plans to support import/export es6 ( es2015 ) modules 1 answer nodejs 8 import module - require import!

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