photoprism/frontend/karma.conf.js

const path = require('path');

process.env.CHROME_BIN = require('puppeteer').executablePath()

module.exports = (config) => {
    config.set({
        frameworks: ['mocha'],

        browsers: ['PhotoPrism'],

        customLaunchers: {
            PhotoPrism: {
                base: 'ChromeHeadless',
                flags: ['--disable-translate', '--disable-extensions', '--no-sandbox', '--disable-web-security'],
            }
        },

        files: [
            {pattern: 'tests/**/*_test.js', watched: false}
        ],

        // Preprocess through webpack
        preprocessors: {
            'tests/**/*_test.js': ['webpack']
        },

        reporters: ['progress', 'html'],

        htmlReporter: {
            outputFile: 'tests/result.html'
        },

        webpack: {
            mode: 'development',

            resolve: {
                modules: [
                    path.join(__dirname, 'src'),
                    path.join(__dirname, 'node_modules'),
                    path.join(__dirname, 'tests'),
                ],
                alias: {
                    vue: 'vue/dist/vue.js'
                }
            },
            module: {
                rules: [
                    {
                        test: /\.js$/,
                        loader: 'babel-loader',
                        exclude: file => (
                            /node_modules/.test(file)
                        ),
                        query: {
                            presets: ['@babel/preset-env'],
                            compact: false
                        },
                    },
                ]
            }
        },

        singleRun: true,
    });
};