not sure what I'm missing... I have a test build that looks like this

:ci {:target :karma
       :output-to "out/ci.js"
       :ns-regexp "-test$"}

my karma.conf.js looks like this

// See 
module.exports = function(config) {
    config.set({
        frameworks: ['cljs-test'],
        plugins: ['karma-cljs-test', 'karma-chrome-launcher', 'karma-junit-reporter'],

        basePath: 'out',

        // If you need to include custom JavaScript files, put them here.
        files: [
            // We serve all the JS files via Karma's webserver so that you can
            // use :optimizations :none. Only test_suite.js is included because
            // CLJS does its own module loading.
            'ci.js'
        ],
        colors: true,
        logLevel: config.LOG_INFO,
        client: {
            args: ['quagga.runner-test.run'],
            singleRun: true
        },

        // If you don't like the progress reporter, you could try 'dots'
        reporters: ['progress', 'junit'],

        // If you want to use other browsers, you need to install the launchers
        // for them! E.g. npm install --save-dev karma-firefofx-launcher
        browsers: ['ChromeHeadless'],

        reportSlowerThan: 500, // ms

        // We disable autoWatch, because it executes tests while the code is
        // still comiling. We use :notify-command to trigger them instead.
        autoWatch: false,

        // Configuration for JUnit output. We care only about the output directory.
        // This directory is relative to basePath, so the XML files will be 
        // in `target/out/reports`.
        // <>
        junitReporter: {
            outputDir: 'reports'
        }
    });
}

in the quagga.runner-test namespace I have a run function that looks like this

(defn ^:export run [karma]
  (karma/run-tests
   karma
   'quagga.events-test))

an in the quagga.events-test namespace

(ns quagga.events-test
  (:require [cljs.test :refer-macros [deftest is testing run-tests]]))

(deftest first-test
  (testing "hello world test"
    (is (= 1 1))))

actually, I found my issue

seems a _ was expected where I placed a -

yeah this in JS quagga.runner-test.run means quagga.runner MINUS test.run