karma-ng-html2js-preprocessor not creating modules

问题

Attempting to use the karma-ng-html2js-preprocessor. Karma has been finding all of my other stuff (javascript) fine, but when it comes to this html preprocessor it can't seem to find and generate a module from it.

Check out my options object below. As you can see, I've added a pattern to the files attribute and I'm using the generic name 'foo' for the module. In the test, karma throws an error whenever I try to call module('foo'); I really want to be able to use this so I don't have to hardcode templates into my unit tests or some other wacky solution.

    var options = {
        files: [].concat(
            bowerFiles,
            config.specHelpers,
            clientApp + '**/*.module.js',
            clientApp + '**/*.js',
            clientApp + '**/*.html',
            '*.html',
            temp + config.templateCache.file,
            config.serverIntegrationSpecs
            ),
        exclude: [],
        coverage: {
            dir: report + 'coverage',
            reporters: [
                // reporters not supporting the `file` property
                { type: 'html', subdir: 'report-html' },
                { type: 'lcov', subdir: 'report-lcov' },
                { type: 'text-summary' } //, subdir: '.', file: 'text-summary.txt'}
            ]
        },
        ngHtml2JsPreprocessor: {
            // strip this from the file path
            // stripPrefix: clientApp,
            moduleName: 'foo'
        },
        preprocessors: {}
    };
    options.preprocessors[clientApp + '**/*.html'] = ['ng-html2js'];
    options.preprocessors[clientApp + '**/!(*.spec)+(.js)'] = ['coverage'];
    return options;
}

回答1:

I know this doesn't necessarily answer your question and if more information comes to light, I'll add to this answer but I've found this strategy works well...

I find that the HTML template of a directive, route or state (if using ui-router) shouldn't come into play when unit testing. Unit testing is about testing the interface to your component; its publicly available methods and properties. Testing the interactions with the HTML document is really in the realm of end-to-end testing with something like Protractor.

With that in mind, here's how I prevent Karma from attempting to load template files during testing.

beforeEach(function() {
    module('module.name.of.the.testable.component');

    inject(function($templateCache) {
        $templateCache.put('path/to/template/as/it/appears/in/your/component.html',
            '<div></div>');
    });
});

来源：https://stackoverflow.com/questions/34301801/karma-ng-html2js-preprocessor-not-creating-modules