Angular 2 for TypeScript-app testing - spesifikasjoner vises flere ganger i Jasmine

Jeg har fulgt denne veiledningen for å teste en Angular 2-app: https://angular.io/docs/ts/latest/guide/testing.html

Etter å ha fullført First app test-delen og gikk til unit-tests.html så jeg at spesifikasjonsrapportene mine dukket opp flere ganger:

<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="content-type" content="text/html;charset=utf-8">
    <title>Ng App Unit Tests</title>

    <link rel="stylesheet" href="node_modules/jasmine-core/lib/jasmine-core/jasmine.css">

    <script src="node_modules/jasmine-core/lib/jasmine-core/jasmine.js"></script>
    <script src="node_modules/jasmine-core/lib/jasmine-core/jasmine-html.js"></script>
    <script src="node_modules/jasmine-core/lib/jasmine-core/boot.js"></script>
</head>
<body>
<!-- #1. add the system.js library -->
<script src="node_modules/systemjs/dist/system-polyfills.js"></script>
<script src="node_modules/systemjs/dist/system.src.js"></script>

<script>
    // #2. Configure systemjs to use the .js extension
    //     for imports from the app folder
    System.config({
        packages: {
            'app': {defaultExtension: 'js'}
        }
    });

    // #3. Import the spec file explicitly
    System.import('app/hero.spec')

    // #4. wait for all imports to load ...
    //     then re-execute `window.onload` which
    //     triggers the Jasmine test-runner start
    //     or explain what went wrong.
            .then(window.onload)
            .catch(console.error.bind(console));
</script>
</body>

</html>

hero.spec.ts

import {Hero} from './hero';

describe('Hero', () => {
    it('has name', () => {
        let hero:Hero = {id: 1, name: 'Super Cat'};
        expect(hero.name).toEqual('Super Cat');
    });
    it('has id', () => {
        let hero:Hero = {id: 1, name: 'Super Cat'};
        expect(hero.id).toEqual(1);
    });
});

Noen idé om hva som kan ha gått galt?

Svar #1

Siden min forrige kommentar er merket som slettet, skriver jeg ned min endelige løsning for å løse problemet. Denne løsningen fungerer, og det eneste problemet er at første gang den viser HTML-siden med teksten «No specs found», men når alle moduler er lastet, viser den alle spesifikasjoner og resultatene deres.

Denne løsningen er hentet fra boken «Angular 2 Development with TypeScript v7 MEAP» fra Manning Early Access Program:

<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="content-type" content="text/html;charset=utf-8">
    <title>Unit Tests</title>
    <link rel="stylesheet" href="node_modules/jasmine-core/lib/jasmine-core/jasmine.css">
    <!-- #1. Polyfills -->
    <script src="node_modules/reflect-metadata/Reflect.js"></script>
    <!-- #2. Zone.js dependencies -->
    <script src="node_modules/zone.js/dist/zone.js"></script>
    <script src="node_modules/zone.js/dist/async-test.js"></script>
    <script src="node_modules/zone.js/dist/fake-async-test.js"></script>
    <!-- #3. Add specs dependencies -->
    <script src="app/treeNode.spec.ts"></script>
    <script src="app/template.spec.ts"></script>
    <script src="app/services/tree.side.service.spec.ts"></script>
    <script src="app/services/tree.service.spec.ts"></script>
    <!-- #4. Add Jasmine dependencies -->
    <script src="node_modules/jasmine-core/lib/jasmine-core/jasmine.js"></script>
    <script src="node_modules/jasmine-core/lib/jasmine-core/jasmine-html.js"></script>
    <script src="node_modules/jasmine-core/lib/jasmine-core/boot.js"></script>
    <script src="node_modules/jasmine-expect/dist/jasmine-matchers.js"></script>
    <!-- #5. Add the system.js library -->
    <script src="node_modules/systemjs/dist/system.src.js"></script>
    <script>System.packageWithIndex = true;</script>
    <script src="systemjs.config.js"></script>

    <script>
        // #6. Configure SystemJS to use the .js extension for imports from the app folder
        System.config({
            packages: {
                'app': {defaultExtension: 'js'}
            }
        });

        var SPEC_MODULES = [
            'app/treeNode.spec',
            'app/template.spec',
            'app/services/tree.side.service.spec',
            'app/services/tree.service.spec'
        ];

        /**
         * #7. Import the spec files explicitly
         */
        Promise.all([
            System.import('@angular/core/testing'),
            System.import('@angular/platform-browser-dynamic/testing')
        ])
        .then(function (modules) {
            var testing = modules[0];
            var testingBrowser = modules[1];
            testing.TestBed.initTestEnvironment(testingBrowser.BrowserDynamicTestingModule, testingBrowser.platformBrowserDynamicTesting());
            return Promise.all(SPEC_MODULES.map(function (module) {
                return System.import(module);
            }));
        })
        .then(window.onload)
        .catch(console.error.bind(console));
    </script>
</head>
<body>
</body>
</html>

Jeg håper du finner denne løsningen nyttig.

Svar #2

Jeg kan ikke gjenskape problemet ditt. Se denne plunkr: https://plnkr.co/edit/viMSZD?p=preview.

Den eneste forskjellen jeg ser er at jeg inkluderte SystemJS-biblioteksfiler før Jasmine-filene:

<script src="https://code.angularjs.org/tools/system-polyfills.js"></script>
<script src="https://code.angularjs.org/tools/system.js"></script>

<script src="https://cdnjs.cloudflare.com/ajax/libs/jasmine/2.4.1/jasmine.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jasmine/2.4.1/jasmine-html.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jasmine/2.4.1/boot.js"></script>

Relaterte artikler