diff --git a/cms/static/karma_cms.conf.js b/cms/static/karma_cms.conf.js
index 956c7c65b0..78bc1818fd 100644
--- a/cms/static/karma_cms.conf.js
+++ b/cms/static/karma_cms.conf.js
@@ -5,10 +5,10 @@
 /*jshint -W079 */
 'use strict';
 var path = require('path');
-var _ = require('underscore');
 var configModule = require(path.join(__dirname, '../../common/static/common/js/karma.common.conf.js'));
 
-var libraryFiles = [
+var files = {
+    libraryFiles: [
     {pattern: 'xmodule_js/common_static/coffee/src/ajax_prefix.js', included: false},
     {pattern: 'xmodule_js/common_static/js/src/utility.js', included: false},
     {pattern: 'xmodule_js/common_static/js/vendor/jquery.min.js', included: false},
@@ -67,58 +67,36 @@ var libraryFiles = [
     {pattern: 'edx-ui-toolkit/js/**/*.js', included: false},
 
     {pattern: 'common/js/utils/require-serial.js', included: true}
-];
+    ],
 
-// Paths to source JavaScript files
-var sourceFiles = [
+    sourceFiles: [
     {pattern: 'coffee/src/**/!(*spec).js', included: false},
     {pattern: 'js/**/!(*spec).js', included: false},
     {pattern: 'common/js/**/!(*spec).js', included: false}
-];
+    ],
 
-// Paths to spec (test) JavaScript files
-var specFiles = [
+    specFiles: [
     {pattern: 'coffee/spec/**/*spec.js', included: false},
     {pattern: 'js/spec/**/*spec.js', included: false},
     {pattern: 'js/certificates/spec/**/*spec.js', included: false}
-];
+    ],
 
-// Paths to fixture files
-var fixtureFiles = [
+    fixtureFiles: [
     {pattern: 'coffee/fixtures/**/*.underscore', included: false},
     {pattern: 'templates/**/*.underscore', included: false},
     {pattern: 'common/templates/**/*.underscore', included: false}
-];
+    ],
 
-// override fixture path and other config.
-var runAndConfigFiles = [
+    runAndConfigFiles: [
     {pattern: path.join(configModule.appRoot, 'common/static/common/js/jasmine.common.conf.js'), included: true},
     'coffee/spec/main.js'
-];
-
-// do not include tests or libraries
-// (these files will be instrumented by Istanbul)
-var preprocessors = configModule.getPreprocessorObject(_.flatten([sourceFiles, specFiles]));
-
-module.exports = function (config) {
-    var commonConfig = configModule.getConfig(config),
-        files = _.flatten([libraryFiles, sourceFiles, specFiles, fixtureFiles, runAndConfigFiles]),
-        localConfig;
-
-    // add nocache in files if coverage is not set
-    if (!config.coverage) {
-        files.forEach(function (f) {
-            if (_.isObject(f)) {
-                f.nocache = true;
-            }
-        });
-    }
-
-    localConfig = {
-        files: files,
-        preprocessors: preprocessors
-    };
-
-    config.set(_.extend(commonConfig, localConfig));
+    ]
+};
+
+module.exports = function (config) {
+    configModule.configure({
+        config: config,
+        files: files
+    });
 };
 
diff --git a/cms/static/karma_cms_squire.conf.js b/cms/static/karma_cms_squire.conf.js
index fbd4c04986..b5baa05714 100644
--- a/cms/static/karma_cms_squire.conf.js
+++ b/cms/static/karma_cms_squire.conf.js
@@ -5,10 +5,10 @@
 /*jshint -W079 */
 'use strict';
 var path = require('path');
-var _ = require('underscore');
 var configModule = require(path.join(__dirname, '../../common/static/common/js/karma.common.conf.js'));
 
-var libraryFiles = [
+var files = {
+    libraryFiles: [
     {pattern: 'xmodule_js/common_static/js/vendor/requirejs/require.js', included: false},
     {pattern: 'xmodule_js/common_static/coffee/src/ajax_prefix.js', included: false},
     {pattern: 'xmodule_js/common_static/js/src/utility.js', included: false},
@@ -52,59 +52,37 @@ var libraryFiles = [
     },
     {pattern: 'xmodule_js/common_static/js/vendor/requirejs/text.js', included: false},
     {pattern: 'common/js/utils/require-serial.js', included: true}
-];
+    ],
 
-// Paths to source JavaScript files
-var sourceFiles = [
+    sourceFiles: [
     {pattern: 'coffee/src/**/*.js', included: false},
     {pattern: 'js/collections/**/*.js', included: false},
     {pattern: 'js/models/**/*.js', included: false},
     {pattern: 'js/utils/**/*.js', included: false},
     {pattern: 'js/views/**/*.js', included: false},
     {pattern: 'common/js/**/*.js', included: false}
-];
+    ],
 
-// Paths to spec (test) JavaScript files
-var specFiles = [
+    specFiles: [
     {pattern: 'coffee/spec/**/*.js', included: false},
     {pattern: 'js/spec/**/*.js', included: false}
-];
+    ],
 
-// Paths to fixture files
-var fixtureFiles = [
+    fixtureFiles: [
     {pattern: 'coffee/fixtures/**/*.*', included: false},
     {pattern: 'templates/**/*.*', included: false},
     {pattern: 'common/templates/**/*.*', included: false}
-];
+    ],
 
-// override fixture path and other config.
-var runAndConfigFiles = [
+    runAndConfigFiles: [
     {pattern: path.join(configModule.appRoot, 'common/static/common/js/jasmine.common.conf.js'), included: true},
     'coffee/spec/main_squire.js'
-];
-
-// do not include tests or libraries
-// (these files will be instrumented by Istanbul)
-var preprocessors = configModule.getPreprocessorObject(_.flatten([sourceFiles, specFiles]));
+    ]
+};
 
 module.exports = function (config) {
-    var commonConfig = configModule.getConfig(config),
-        files = _.flatten([libraryFiles, sourceFiles, specFiles, fixtureFiles, runAndConfigFiles]),
-        localConfig;
-
-    // add nocache in files if coverage is not set
-    if (!config.coverage) {
-        files.forEach(function (f) {
-            if (_.isObject(f)) {
-                f.nocache = true;
-            }
-        });
-    }
-
-    localConfig = {
-        files: files,
-        preprocessors: preprocessors
-    };
-
-    config.set(_.extend(commonConfig, localConfig));
+    configModule.configure({
+        config: config,
+        files: files
+    });
 };
diff --git a/common/lib/xmodule/xmodule/js/karma_xmodule.conf.js b/common/lib/xmodule/xmodule/js/karma_xmodule.conf.js
index b3ee098cdc..80f52b8d3f 100644
--- a/common/lib/xmodule/xmodule/js/karma_xmodule.conf.js
+++ b/common/lib/xmodule/xmodule/js/karma_xmodule.conf.js
@@ -6,11 +6,10 @@
 
 'use strict';
 var path = require('path');
-var _ = require('underscore');
 var configModule = require(path.join(__dirname, 'common_static/common/js/karma.common.conf.js'));
 
-var libraryFiles = [
-    // override fixture path and other config.
+var files = {
+    libraryFiles: [
     {pattern: path.join(configModule.appRoot, 'common/static/common/js/jasmine.common.conf.js'), included: true},
 
     {pattern: 'common_static/js/vendor/jquery.min.js', included: true},
@@ -46,62 +45,32 @@ var libraryFiles = [
     {pattern: 'common_static/edx-pattern-library/js/modernizr-custom.js', included: false},
     {pattern: 'common_static/edx-pattern-library/js/afontgarde.js', included: false},
     {pattern: 'common_static/edx-pattern-library/js/edx-icons.js', included: false}
-];
+    ],
 
-// Paths to source JavaScript files
-var sourceFiles = [
-    {pattern: 'src/xmodule.js', included: true, skipInstrument: true},
+    sourceFiles: [
+    {pattern: 'src/xmodule.js', included: true, ignoreCoverage: true},
     {pattern: 'src/**/*.js', included: true}
-];
+    ],
 
-// Paths to spec (test) JavaScript files
-var specFiles = [
-    {pattern: 'spec/helper.js', included: true, skipInstrument: true},
+    specFiles: [
+    {pattern: 'spec/helper.js', included: true, ignoreCoverage: true},
     {pattern: 'spec/**/*.js', included: true}
-];
+    ],
 
-// Paths to fixture files
-var fixtureFiles = [
+    fixtureFiles: [
     {pattern: 'fixtures/*.*', included: false, served: true}
-];
+    ],
 
-var runAndConfigFiles = [
+    runAndConfigFiles: [
     {pattern: 'karma_runner.js', included: true}
-];
-
-// do not include tests or libraries
-// (these files will be instrumented by Istanbul)
-var preprocessors = (function () {
-    var preprocessFiles = {};
-    _.flatten([sourceFiles, specFiles]).forEach(function (file) {
-        var pattern = _.isObject(file) ? file.pattern : file;
-
-        if (!file.skipInstrument) {
-            preprocessFiles[pattern] = ['coverage'];
-        }
-    });
-
-    return preprocessFiles;
-}());
+    ]
+};
 
 module.exports = function (config) {
-    var commonConfig = configModule.getConfig(config, false),
-        files = _.flatten([libraryFiles, sourceFiles, specFiles, fixtureFiles, runAndConfigFiles]),
-        localConfig;
-
-    // add nocache in files if coverage is not set
-    if (!config.coverage) {
-        files.forEach(function (f) {
-            if (_.isObject(f)) {
-                f.nocache = true;
-            }
-        });
-    }
-
-    localConfig = {
+    configModule.configure({
+        config: config,
         files: files,
-        preprocessors: preprocessors
-    };
-
-    config.set(_.extend(commonConfig, localConfig));
+        normalizePathsForCoverageFunc: function(appRoot, pattern) { return pattern; },
+        useRequireJs: false
+    });
 };
diff --git a/common/static/common/js/karma.common.conf.js b/common/static/common/js/karma.common.conf.js
index 7d678adae4..6533e5b6e3 100644
--- a/common/static/common/js/karma.common.conf.js
+++ b/common/static/common/js/karma.common.conf.js
@@ -124,26 +124,60 @@ function junitSettings(config) {
     };
 }
 
-var getPreprocessorObject = function (files) {
-    var preprocessFiles = {};
+var normalizePathsForCoverage = function(files, normalize_func) {
+    var filesForCoverage = {};
 
     files.forEach(function (file) {
+        if (_.isObject(file) && file.ignoreCoverage) { return; }
+
         var pattern = _.isObject(file) ? file.pattern : file;
-
-        if (pattern.match(/^common\/js/)) {
-            pattern = path.join(appRoot, '/common/static/' + pattern);
-        } else if (pattern.match(/^xmodule_js\/common_static/)) {
-            pattern = path.join(appRoot, '/common/static/' +
-                pattern.replace(/^xmodule_js\/common_static\//, ''));
+        if (normalize_func) {
+            pattern = normalize_func(appRoot, pattern);
+        } else {
+            if (pattern.match(/^common\/js/)) {
+                pattern = path.join(appRoot, '/common/static/' + pattern);
+            } else if (pattern.match(/^xmodule_js\/common_static/)) {
+                pattern = path.join(appRoot, '/common/static/' +
+                  pattern.replace(/^xmodule_js\/common_static\//, ''));
+            }
         }
-
-        preprocessFiles[pattern] = ['coverage'];
+        filesForCoverage[pattern] = ['coverage'];
     });
 
-    return preprocessFiles;
+    return filesForCoverage;
 };
 
-var getConfig = function (config, useRequireJs) {
+/**
+ * Sets nocache on each file in the list.
+ * @param {Object} files
+ * @param {Bool} enable
+ * @return {Object}
+ */
+var setNocache = function (files, enable) {
+    files.forEach(function (f) {
+        if (_.isObject(f)) {
+            f.nocache = enable;
+        }
+    });
+    return files;
+};
+
+/**
+ * Sets defaults for each file pattern.
+ * @param {Object} files
+ * @return {Object}
+ */
+var setDefaults = function (files) {
+    return files.map(function (f) {
+        var file = _.isObject(f) ? f : {pattern: f};
+        if (!file.included) {
+            f.included = false;
+        }
+        return file;
+    });
+};
+
+var getBaseConfig = function (config, useRequireJs) {
     useRequireJs = useRequireJs === undefined ? true : useRequireJs;
 
     var getFrameworkFiles = function () {
@@ -257,8 +291,43 @@ var getConfig = function (config, useRequireJs) {
     };
 };
 
+var configure = function(data) {
+    var baseConfig = getBaseConfig(data.config, data.useRequireJs);
+
+    var files = _.flatten(
+      _.map(
+            ['libraryFiles', 'sourceFiles', 'specFiles', 'fixtureFiles', 'runAndConfigFiles'],
+            function(item) { return data.files[item]; }
+        )
+    );
+
+    files = setDefaults(files);
+
+    // With nocache=true, Karma always serves the latest files from disk.
+    // However, that prevents coverage tracking from working.
+    // So we only set it if coverage tracking is off.
+    setNocache(files, !data.config.coverage);
+
+    var filesForCoverage = _.flatten(
+      _.map(
+            ['sourceFiles', 'specFiles'],
+            function(item) { return data.files[item]; }
+        )
+    );
+
+    var preprocessors = _.extend(
+      {},
+      data.preprocessors,
+      normalizePathsForCoverage(filesForCoverage, data.normalizePathsForCoverageFunc)
+    );
+
+    data.config.set(_.extend(baseConfig, {
+        files: files,
+        preprocessors: preprocessors
+    }));
+};
+
 module.exports = {
-    getConfig: getConfig,
-    getPreprocessorObject: getPreprocessorObject,
+    configure: configure,
     appRoot: appRoot
 };
diff --git a/common/static/karma_common.conf.js b/common/static/karma_common.conf.js
index d9864bdc58..43e3ac96e8 100644
--- a/common/static/karma_common.conf.js
+++ b/common/static/karma_common.conf.js
@@ -5,12 +5,10 @@
 /*jshint -W079 */
 'use strict';
 var path = require('path');
-var _ = require('underscore');
 var configModule = require(path.join(__dirname, '../../common/static/common/js/karma.common.conf.js'));
 
-// Files to load by Karma
-var libraryFiles = [
-    // override fixture path and other config.
+var files = {
+    libraryFiles: [
     {pattern: path.join(configModule.appRoot, 'common/static/common/js/jasmine.common.conf.js'), included: true},
 
     {pattern: 'js/vendor/jquery.min.js', included: true},
@@ -34,62 +32,40 @@ var libraryFiles = [
     {pattern: 'edx-pattern-library/js/modernizr-custom.js', included: true},
     {pattern: 'edx-pattern-library/js/afontgarde.js', included: true},
     {pattern: 'edx-pattern-library/js/edx-icons.js', included: true}
-];
+    ],
 
-// Paths to source JavaScript files
-var sourceFiles = [
+    sourceFiles: [
     {pattern: 'js/xblock/**/*.js', included: true},
     {pattern: 'coffee/src/**/*.js', included: true},
     {pattern: 'js/src/**/*.js', included: true},
     {pattern: 'js/capa/src/**/*.js', included: true}
-];
+    ],
 
-// Paths to spec (test) JavaScript files
-var specFiles = [
+    specFiles: [
     {pattern: 'coffee/spec/**/*.js', included: true},
     {pattern: 'js/spec/**/*.js', included: true},
     {pattern: 'js/capa/spec/**/*.js', included: true}
-];
+    ],
 
-// Paths to fixture files
-var fixtureFiles = [
+    fixtureFiles: [
     {pattern: 'js/fixtures/**/*.html', included: false},
     {pattern: 'js/capa/fixtures/**/*.html', included: false},
     {pattern: 'common/templates/**/*.underscore', included: false}
-];
+    ],
 
-// do not include tests or libraries
-// (these files will be instrumented by Istanbul)
-var preprocessors = (function () {
-    var preprocessFiles = {};
+    runAndConfigFiles: [
+    ]
+};
 
-    _.flatten([sourceFiles, specFiles]).forEach(function (file) {
-        var pattern = _.isObject(file) ? file.pattern : file;
-        pattern = path.join(configModule.appRoot, '/common/static/' + pattern);
-        preprocessFiles[pattern] = ['coverage'];
-    });
-
-    return preprocessFiles;
-}());
+var normalizePathsForCoverageFunc = function (appRoot, pattern) {
+    return path.join(appRoot, '/common/static/' + pattern);
+};
 
 module.exports = function (config) {
-    var commonConfig = configModule.getConfig(config, false),
-        files = _.flatten([libraryFiles, sourceFiles, specFiles, fixtureFiles]),
-        localConfig;
-
-    // add nocache in files if coverage is not set
-    if (!config.coverage) {
-        files.forEach(function (f) {
-            if (_.isObject(f)) {
-                f.nocache = true;
-            }
-        });
-    }
-
-    localConfig = {
+    configModule.configure({
+        config: config,
         files: files,
-        preprocessors: preprocessors
-    };
-
-    config.set(_.extend(commonConfig, localConfig));
+        normalizePathsForCoverageFunc: normalizePathsForCoverageFunc,
+        useRequireJs: false
+    });
 };
diff --git a/common/static/karma_common_requirejs.conf.js b/common/static/karma_common_requirejs.conf.js
index b06bb38837..f50e59c975 100644
--- a/common/static/karma_common_requirejs.conf.js
+++ b/common/static/karma_common_requirejs.conf.js
@@ -6,10 +6,10 @@
 
 'use strict';
 var path = require('path');
-var _ = require('underscore');
 var configModule = require(path.join(__dirname, '../../common/static/common/js/karma.common.conf.js'));
 
-var libraryFiles = [
+var files = {
+    libraryFiles: [
     {pattern: 'js/vendor/jquery.min.js', included: false},
     {pattern: 'js/vendor/jasmine-imagediff.js', included: false},
     {pattern: 'js/libs/jasmine-stealth.js', included: false},
@@ -30,61 +30,34 @@ var libraryFiles = [
     {pattern: 'js/vendor/requirejs/text.js', included: false},
     {pattern: 'js/vendor/sinon-1.17.0.js', included: false},
     {pattern: 'common/js/utils/require-serial.js', included: true}
-];
+    ],
 
-// Paths to source JavaScript files
-var sourceFiles = [
+    sourceFiles: [
     {pattern: 'common/js/**/!(*spec).js', included: false}
-];
+    ],
 
-// Paths to spec (test) JavaScript files
-var specFiles = [
+    specFiles: [
     {pattern: 'common/js/spec/**/*spec.js', included: false}
-];
+    ],
 
-// Paths to fixture files
-var fixtureFiles = [
+    fixtureFiles: [
     {pattern: 'common/templates/**/*.*', included: false}
-];
+    ],
 
-// override fixture path and other config.
-var runAndConfigFiles = [
+    runAndConfigFiles: [
     {pattern: path.join(configModule.appRoot, 'common/static/common/js/jasmine.common.conf.js'), included: true},
     'common/js/spec/main_requirejs.js'
-];
+    ]
+};
 
-// do not include tests or libraries
-// (these files will be instrumented by Istanbul)
-var preprocessors = (function () {
-    var preprocessFiles = {};
-
-    _.flatten([sourceFiles, specFiles]).forEach(function (file) {
-        var pattern = _.isObject(file) ? file.pattern : file;
-        pattern = path.join(configModule.appRoot, '/common/static/' + pattern);
-        preprocessFiles[pattern] = ['coverage'];
-    });
-
-    return preprocessFiles;
-}());
+var normalizePathsForCoverageFunc = function (appRoot, pattern) {
+    return path.join(appRoot, '/common/static/' + pattern);
+};
 
 module.exports = function (config) {
-    var commonConfig = configModule.getConfig(config),
-        files = _.flatten([libraryFiles, sourceFiles, specFiles, fixtureFiles, runAndConfigFiles]),
-        localConfig;
-
-    // add nocache in files if coverage is not set
-    if (!config.coverage) {
-        files.forEach(function (f) {
-            if (_.isObject(f)) {
-                f.nocache = true;
-            }
-        });
-    }
-
-    localConfig = {
+    configModule.configure({
+        config: config,
         files: files,
-        preprocessors: preprocessors
-    };
-
-    config.set(_.extend(commonConfig, localConfig));
+        normalizePathsForCoverageFunc: normalizePathsForCoverageFunc
+    });
 };
diff --git a/lms/static/karma_lms.conf.js b/lms/static/karma_lms.conf.js
index b49932ec74..cec0b85250 100644
--- a/lms/static/karma_lms.conf.js
+++ b/lms/static/karma_lms.conf.js
@@ -5,10 +5,10 @@
 /*jshint -W079 */
 'use strict';
 var path = require('path');
-var _ = require('underscore');
 var configModule = require(path.join(__dirname, '../../common/static/common/js/karma.common.conf.js'));
 
-var libraryFiles = [
+var files = {
+    libraryFiles: [
     {pattern: 'xmodule_js/common_static/js/test/i18n.js', included: false},
     {pattern: 'xmodule_js/common_static/coffee/src/ajax_prefix.js', included: false},
     {pattern: 'xmodule_js/common_static/js/src/logger.js', included: false},
@@ -57,10 +57,9 @@ var libraryFiles = [
     {pattern: 'xmodule_js/common_static/js/libs/jasmine-waituntil.js', included: true},
     {pattern: 'xmodule_js/common_static/js/libs/jasmine-extensions.js', included: true},
     {pattern: 'common/js/utils/require-serial.js', included: true}
-];
+    ],
 
-// Paths to source JavaScript files
-var sourceFiles = [
+    sourceFiles: [
     {pattern: 'js/**/!(*spec).js', included: false},
     {pattern: 'coffee/src/**/*.js', included: false},
     {pattern: 'common/js/**/*.js', included: false},
@@ -69,17 +68,15 @@ var sourceFiles = [
     {pattern: 'support/js/**/!(*spec).js', included: false},
     {pattern: 'teams/js/**/!(*spec).js', included: false},
     {pattern: 'xmodule_js/common_static/coffee/**/*.js', included: false}
-];
+    ],
 
-// Paths to spec (test) JavaScript files
-var specFiles = [
+    specFiles: [
     {pattern: 'js/spec/**/*spec.js', included: false},
     {pattern: 'teams/js/spec/**/*spec.js', included: false},
     {pattern: 'support/js/spec/**/*spec.js', included: false}
-];
+    ],
 
-// Paths to fixture files
-var fixtureFiles = [
+    fixtureFiles: [
     {pattern: 'js/fixtures/**/*.html', included: false},
     {pattern: 'templates/instructor/instructor_dashboard_2/**/*.*', included: false},
     {pattern: 'templates/dashboard/**/*.*', included: false},
@@ -103,36 +100,17 @@ var fixtureFiles = [
     {pattern: 'templates/ccx/**/*.*', included: false},
     {pattern: 'templates/commerce/receipt.underscore', included: false},
     {pattern: 'templates/api_admin/**/*.*', included: false}
-];
+    ],
 
-// override fixture path and other config.
-var runAndConfigFiles = [
+    runAndConfigFiles: [
     {pattern: path.join(configModule.appRoot, 'common/static/common/js/jasmine.common.conf.js'), included: true},
     {pattern: 'js/spec/main.js', included: true}
-];
-
-// do not include tests or libraries
-// (these files will be instrumented by Istanbul)
-var preprocessors = configModule.getPreprocessorObject(_.flatten([sourceFiles, specFiles]));
+    ]
+};
 
 module.exports = function (config) {
-    var commonConfig = configModule.getConfig(config),
-        files = _.flatten([libraryFiles, sourceFiles, specFiles, fixtureFiles, runAndConfigFiles]),
-        localConfig;
-
-    // add nocache in files if coverage is not set
-    if (!config.coverage) {
-        files.forEach(function (f) {
-            if (_.isObject(f)) {
-                f.nocache = true;
-            }
-        });
-    }
-
-    localConfig = {
-        files: files,
-        preprocessors: preprocessors
-    };
-
-    config.set(_.extend(commonConfig, localConfig));
+    configModule.configure({
+        config: config,
+        files: files
+    });
 };
diff --git a/lms/static/karma_lms_coffee.conf.js b/lms/static/karma_lms_coffee.conf.js
index d15d212497..69b7ba2f72 100644
--- a/lms/static/karma_lms_coffee.conf.js
+++ b/lms/static/karma_lms_coffee.conf.js
@@ -6,14 +6,12 @@
 
 'use strict';
 var path = require('path');
-var _ = require('underscore');
 var configModule = require(path.join(__dirname, '../../common/static/common/js/karma.common.conf.js'));
 
-var libraryFiles = [
-    // override fixture path and other config.
+var files = {
+    libraryFiles: [
     {pattern: path.join(configModule.appRoot, 'common/static/common/js/jasmine.common.conf.js'), included: true},
 
-    // vendor files
     {pattern: 'xmodule_js/common_static/js/vendor/jquery.min.js', included: true},
     {pattern: 'xmodule_js/common_static/js/test/i18n.js', included: true},
     {pattern: 'xmodule_js/common_static/coffee/src/ajax_prefix.js', included: true},
@@ -43,45 +41,28 @@ var libraryFiles = [
     {pattern: 'xmodule_js/common_static/edx-pattern-library/js/modernizr-custom.js', included: false},
     {pattern: 'xmodule_js/common_static/edx-pattern-library/js/afontgarde.js', included: false},
     {pattern: 'xmodule_js/common_static/edx-pattern-library/js/edx-icons.js', included: false}
-];
+    ],
 
-// source files
-var sourceFiles = [
+    sourceFiles: [
     {pattern: 'coffee/src/**/*.js', included: true}
-];
+    ],
 
-// spec files
-var specFiles = [
+    specFiles: [
     {pattern: 'coffee/spec/**/*.js', included: true}
-];
+    ],
 
-// Fixtures
-var fixtureFiles = [
+    fixtureFiles: [
     {pattern: 'coffee/fixtures/**/*.*', included: true}
-];
+    ],
 
-// do not include tests or libraries
-// (these files will be instrumented by Istanbul)
-var preprocessors = configModule.getPreprocessorObject(_.flatten([sourceFiles, specFiles]));
+    runAndConfigFiles: [
+    ]
+};
 
 module.exports = function (config) {
-    var commonConfig = configModule.getConfig(config, false),
-        files = _.flatten([libraryFiles, sourceFiles, specFiles, fixtureFiles]),
-        localConfig;
-
-    // add nocache in files if coverage is not set
-    if (!config.coverage) {
-        files.forEach(function (f) {
-            if (_.isObject(f)) {
-                f.nocache = true;
-            }
-        });
-    }
-
-    localConfig = {
+    configModule.configure({
+        config: config,
         files: files,
-        preprocessors: preprocessors
-    };
-
-    config.set(_.extend(commonConfig, localConfig));
+        useRequireJs: false
+    });
 };