karma.conf.js

const webpack = require("webpack");
module.exports = function(config) {
    config.set({
        basePath: "",

        browserNoActivityTimeout: 60000,

        client: {
            mocha: {
                reporter: "html"
            }
        },

        frameworks: ["chai-sinon", "mocha"],

        files: ["test/polyfill.js", "test/**/*spec.js"],

        preprocessors: {
            "test/polyfill.js": ["webpack"],
            "test/**/*spec.js": ["webpack", "sourcemap"]
        },

        coverageReporter: {
            reporters: [
                {
                    type: "html",
                    subdir: "html"
                },
                {
                    type: "text"
                },
                {
                    type: "lcovonly",
                    subdir: "."
                }
            ]
        },

        webpack: {
            devtool: "inline-source-map",
            module: {
                loaders: [
                    {
                        test: /\.js$/,
                        exclude: /node_modules/,
                        loader: "babel"
                    },
                    {
                        test: /\.js$/,
                        // exclude this dirs from coverage
                        exclude: /(test|node_modules)\//,
                        loader: "isparta"
                    }
                ]
            },
            resolve: {
                extensions: ["", ".js"]
            },
            plugins: [
                new webpack.DefinePlugin({
                    "process.env.NODE_ENV": JSON.stringify("test")
                })
            ],
            watch: true
        },

        webpackServer: {
            noInfo: true
        },

        reporters: ["mocha", "coverage"],

        port: 9876,

        colors: true,

        logLevel: config.LOG_INFO,

        autoWatch: true,

        browsers: ["Chrome"],

        captureTimeout: 60000,

        singleRun: false
    });

    if (process.env.CI) {
        require("./karma.conf.ci.js")(config);
    }
};