Karma-browserify tests failing or not generating report

I'm trying to use karma-jamine for unit testing an Angular project which leverages browserify. However is seems, the karma.config either runs the tests or generates the coverage report using karma-istanbul. In the scenario that the tests run (karma.config.js as below) the coverage report shows 100% no matter what. If I include istanbul (commented in the code below) it shows bundle error and test don't run, the report therefore shows 0% for all tests. Please could you help. Hi

` // Karma configuration

'use strict';

var istanbul = require('browserify-istanbul'); module.exports = function (config) {

config.set({

    // base path that will be used to resolve all patterns (eg. files, exclude)
    basePath: './',

    // frameworks to use
    // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
    frameworks: ['jasmine','browserify'],

    // list of files / patterns to load in the browser
    files: [
        'bower_components/angular/angular.js',
        'bower_components/angular-mocks/angular-mocks.js', // for angular.mock.module and inject.
        'app/**/*.js'
    ],

    // list of files to exclude
    exclude: [],

    // preprocess matching files before serving them to the browser
    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
    preprocessors: {
        'app/**/*.js':['browserify','coverage'],
        'app/*.spec.js':['browserify']

    },

    // karma-browserify configuration

    browserify: {
       debug: true,
         transform: ['debowerify','partialify', istanbul({
             'ignore': ['./**/*.spec.js', './bower_components/**']
         })],
        //transform: ['debowerify','partialify'],
        // don't forget to register the extensions
        extensions: ['.js']
    },

    // test results reporter to use
    // possible values: 'dots', 'progress', 'spec'
    // available reporters: https://npmjs.org/browse/keyword/karma-reporter
    reporters: ['spec', 'coverage'],

    coverageReporter: {
        //type: 'text',
        //dir: './reports/coverage'
        reporters: [
            { type: 'html', dir: 'reports/coverage'}
           // { type: 'text' },
          ],
          instrumenterOptions: {
            istanbul: {
              noCompact: true
            }
          },
          instrumenter: {
            'app/*.spec.js': 'istanbul'
          },
          includeAllSources: true
    },

    // web server port
    port: 9876,

    // enable / disable colors in the output (reporters and logs)
    colors: true,

    // level of logging
    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
    logLevel: config.LOG_INFO,

    // enable / disable watching file and executing tests whenever any file changes
    autoWatch: true,

    // start these browsers
    // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
    browsers: [
         'Chrome'
       // 'PhantomJS'
    ],

    // Continuous Integration mode
    // if true, Karma captures browsers, runs the tests and exits
    singleRun: false

});

}; `

nikku / karma-browserify

Karma-browserify tests failing or not generating report #186