javascript - Typescript + Angular2 test fails because of a JS library dependency -

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i use jsfeat javascript library in angular2 project.

i put @ beginning of .ts , .spec.ts files:

declare var jsfeat: any;

i included jsfeat.js in index.html.

now want run angular2 tests, get:

referenceerror: jsfeat not defined

the test code is:

describe('myobj instance', function () {   it('should instantiate myobj', () => {     expect(new myobj()).tobedefined('whoopie!');   }); });

1) install jsfeat npm (optional):

npm install -g jsfeat

2) edit karma.conf.js:

  config.set({

[...]

files: [   // system.js module loading   'node_modules/systemjs/dist/system.src.js',    // polyfills   'node_modules/core-js/client/shim.js',    // reflect , zone.js   'node_modules/reflect-metadata/reflect.js',   'node_modules/zone.js/dist/zone.js',   'node_modules/zone.js/dist/jasmine-patch.js',   'node_modules/zone.js/dist/async-test.js',   'node_modules/zone.js/dist/fake-async-test.js',

[...]

add jsfeat:

  'node_modules/jsfeat/build/jsfeat.js',

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