Requirejs do not add “.js” for modules using karma

I have simple test, that must work in webstorm using karma and requirejs.

The problem is that for some reason requirejs do not add ".js" for modules i was loading for tests. So it crashed trying to load "../ts/mamats/mama", while "../ts/mamats/mama.js" exists

Test (main.jasmine.js):

define(["require", "exports", "../ts/mamats/mama"], function(require, exports, mama) {
    describe("first test", function () {
        it("should be true", function () {
            var object = new mama.block();
            expect(object instanceof mama.block).toBe(true);
        });
    });
});
//# sourceMappingURL=main.jasmine.js.map

every thing works correctly when i replace "../ts/mamats/mama" with "../ts/mamats/mama.js"

sourceMappingURL here because javaScript file generated from typeScript source file, and because of that i cannot add ".js" for modules manually

Test starts with this entry point (main-test.js):

var tests = Object.keys(window.__karma__.files).filter(function (file) {
    return (/\.jasmine\.js$/).test(file);
});
requirejs.config({
    baseUrl: '/base',
    deps: tests,
    callback: window.__karma__.start
});

Why requirejs don't add ".js" for modules here?

Karma conf file:

module.exports = function(config) {
  config.set({
    basePath: '../',
    frameworks: ['jasmine', 'requirejs'],
    files: [
      'static-tests/main-test.js',
      { pattern: 'static/**/*', included: false },
      { pattern: 'static-tests/**/*', included: false }
    ],
    exclude: [],
    preprocessors: {},
    reporters: ['progress'],
    port: 9876,
    colors: true,
    logLevel: config.LOG_INFO,
    autoWatch: false,
    browsers: ['Chrome'],
    singleRun: false
  });
};

Here is an interesting read on how RequireJs handles this:

http://requirejs.org/docs/api.html#jsfiles

Reading that makes it seem like an issue with RequireJS, but there seems to be some debate on whether or not that is true. Regardless, this gist seems to solve the issue.

var tests = Object.keys(window.__karma__.files).filter(function (file) {
  return /\.spec\.js$/.test(file);
}).map(function(file){
  return file.replace(/^\/base\/src\/js\/|\.js$/g,'');
});

require.config({
  baseUrl: '/base/src/js'
});

require(tests, function(){
  window.__karma__.start();
});

It looks like trouble in require.js

The problem is in next: 1. When in deps appear absolute path - requirejs stop add ".js" for any require call 2. When in deps appear file with extension, for some reason requirejs again stop add ".js" for modules

Other Solution here - to replace bathUrl and add it to requirejs conf do not help.

For me solution is next:

var tests = Object.keys(window.__karma__.files).filter(function (file) {
    return (/\-jasmine\.js$/).test(file);
}).map(function (file) {
    return file.replace(/^\/|\.js$/g, '');
});

and