Karma not seeing test files in nested folders

[Caleb Rogers]

Hello,

I delve into this issue on stackoverflow, so if you want free karma there feel free to post an answer there!

I have made karma run successfully with jasmin and karma-webpack, but only on files within `test/`. It will not run tests found in, for example, `test/models/`. 

**karma.conf.js**

    var webpackConfig = require('./config/webpack/webpack.test.conf.js');
     
    module.exports = function(config) {
      config.set({
        basePath: '',
        frameworks: ['jasmine'],
          { pattern: 'test/**/*.spec.js', watched: true },
          { pattern: 'test/models/*.spec.js', watched: true }
        ],
        exclude: [
        ],
        preprocessors: {
            'test/**/*.spec.js': ['webpack'],
            'test/models/*.spec.js': ['webpack']
        },
        webpack: webpackConfig,
        webpackMiddleware: {
            stats: 'errors-only'
        },
        reporters: ['progress'],
        port: 9876,
        colors: true,    
        logLevel: config.LOG_INFO,          
        autoWatch: true,      
        browsers: ['Chrome'],        
        singleRun: false,
        concurrency: Infinity
      })
    }

**test/test.spec.js** This file is seen

    describe("A suite", function () {
        it("contains spec with an expectation", function () {
            expect(true).toBe(true);
        });
    });
    describe("Another suite", function () {
        it("contains another spec with an expectation", function () {
            expect(true).toBe(false);
        });
    });

**test/models/devicegroup.spec.js** This file is not seen

    import backbone from 'backbone';
   
    describe("backbone", function () {
        it("containsasdfasdfasdfasdfspec with an expectation", function () {
            expect(true).toBe(false);
        });
    });

My folder structure is:

    - karma.conf.js
    - test/
    - - test.spec.js
    - - models/
    - - - devicegroup.spec.js
    - public/
    - - js/
    - - - app.js

I have also tried an explicit glob pattern, which did not work

    files: [
      { pattern: 'test/**/*.spec.js', watched: true },
      { pattern: 'test/*.spec.js', watched: true },
      { pattern: 'test/models/devicegroup.spec.js', watched: true }
    ],


    preprocessors: {
        'test/**/*.spec.js': ['webpack'],
        'test/*.spec.js': ['webpack'],
        'test/models/devicegroup.spec.js': ['webpack']
    },

How can I make karma see nested test folders? 

[Caleb Rogers]

I didn't copy my karma.conf over here properly, below is how it actually looks

var webpackConfig = require('./config/webpack/webpack.test.conf.js');

module.exports = function(config) {
  config.set({
    basePath: '',
    frameworks: ['jasmine'],

    files: [

      { pattern: 'test/**/*.spec.js', watched: true },
      { pattern: 'test/*.spec.js', watched: true }
    ],

    exclude: [

[Caleb Rogers]

Please see the stack overflow question for significant updates: https://stackoverflow.com/questions/50709191/karma-not-running-tests-that-have-import-statements-in-karma-webpack

It seems that the problem wasn't nested folders, it was the existence of an `import` statement. Having an `import` statement causes karma to ignore that entire test file.