CODEWITHSUNDEEP
javascriptnode.jsmocha.jsvisual-studio-code
GutiMac
GutiMac

Reputation: 2472

How to debug with visual studio code a mocha test in javascript?

If you are using node, it is easy to debug:

//.vscode/launch.json
"configurations": [
    {
        "name": "Launch",
        "type": "node",
        "request": "launch",
        ...

But if I am using mocha tests, how can I debug it?

I have tried to use:

"configurations": [
    {
        "name": "Launch",
        "type": "mocha",
        "request": "launch",

But it is not valid. Does anyone have any idea?

Upvotes: 1

Views: 2051

Answers (1)

GutiMac
GutiMac

Reputation: 2472

  1. Create this new debug target in .vscode/launch.json

    {
    "name": "Unit tests",
    "type": "node",
    "program": "${workspaceRoot}/mocha.js",
    "stopOnEntry": true,
    "args": ["${workspaceRoot}/TESTTODEBUG.js"],
    "runtimeExecutable": null,
    "env": {
        "NODE_ENV": "test"
     }

  2. Create the file mocha.js

    'use strict';

// Dependencies
var Mocha = require('mocha');

// Determine which tests to run based on argument passed to runner
var args = process.argv.splice(2);
//var args = ["./tests/unit/services/supra-statement.service.test.js"];
var files;



//Define Mocha
var mocha = new Mocha({
  timeout: 60000,
  reporter: 'spec',
  globals: ['Associations', 'CREATE_TEST_WATERLINE', 'DELETE_TEST_WATERLINE']
});

args.forEach(mocha.addFile.bind(mocha));

//Run unit tests
mocha.run(function (failures) {
    process.exit(failures);
});

  3. Run the debugger with the Unit test Option

Upvotes: 4

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