Setting up a Rake task for Jasmine/Karma

config/ng-test.conf.js

@@ -5,11 +5,11 @@ module.exports = function(config) {
     frameworks: ['jasmine'],
 
     files: [
+      APPLICATION_SPEC,
       'app/assets/javascripts/shared/jquery-1.8.0.js', // TODO: Can we link to Rails' jquery?
-      'app/assets/javascripts/shared/angular.js',
-      'app/assets/javascripts/shared/angular-*.js',
       'app/assets/javascripts/shared/jquery.timeago.js',
       'app/assets/javascripts/shared/mm-foundation-tpls-0.2.0-SNAPSHOT.js',
+      'app/assets/javascripts/shared/angular-local-storage.js',
 
       'app/assets/javascripts/admin/shared_directives.js.coffee',
       'app/assets/javascripts/admin/shared_services.js.coffee',
@@ -18,7 +18,6 @@ module.exports = function(config) {
       'app/assets/javascripts/admin/bulk_product_update.js.coffee',
       'app/assets/javascripts/darkswarm/*.js*',
       'app/assets/javascripts/darkswarm/**/*.js*',
-
       'spec/javascripts/unit/**/*.js*'
     ],
 

lib/tasks/karma.rake

@@ -0,0 +1,31 @@
+namespace :karma  do
+  task :start => :environment do
+    with_tmp_config :start
+  end
+
+  task :run => :environment do
+    with_tmp_config :start, "--single-run"
+  end
+
+  private
+
+  def with_tmp_config(command, args = nil)
+    Tempfile.open('karma_unit.js', Rails.root.join('tmp') ) do |f|
+      f.write unit_js(application_spec_files)
+      f.flush
+      system "karma #{command} #{f.path} #{args}"
+    end
+  end
+
+  def application_spec_files
+    sprockets = Rails.application.assets
+    sprockets.append_path Rails.root.join("spec/javascripts")
+    files = Rails.application.assets.find_asset("application_spec.js").to_a.map {|e| e.pathname.to_s }
+  end
+
+  def unit_js(files)
+    puts files
+    unit_js = File.open('config/ng-test.conf.js', 'r').read
+    unit_js.gsub "APPLICATION_SPEC", "\"#{files.join("\",\n\"")}\""
+  end
+end

spec/javascripts/application_spec.js

@@ -0,0 +1,5 @@
+//= require angular
+//= require angular-resource
+//= require angular-animate
+//= require angular-mocks
+//= require angular-cookies

spec/javascripts/unit/order_cycle_spec.js.coffee

@@ -828,4 +828,4 @@ describe 'OrderCycle services', ->
           expect(order_cycle.outgoing_exchanges[0].enterprise_fees).toEqual [{id: 3}, {id: 4}]
           expect(order_cycle.incoming_exchanges[0].enterprise_fee_ids).toBeUndefined()
           expect(order_cycle.outgoing_exchanges[0].enterprise_fee_ids).toBeUndefined()
-  
+