add helper generator

.autotest

@@ -0,0 +1,5 @@
+Autotest.add_hook(:initialize) do |at|
+  at.add_mapping(%r{bin/(.*)}, true) do |filename, matches|
+    at.files_matching(%r{spec/bin/#{matches[1]}_spec\.rb})
+  end
+end

bin/backbone-generator

@@ -72,6 +72,11 @@ class BackboneGenerator < Thor
     @name = name
     %w{model view collection collection_view}.each { |which| send("generate_#{which}") }
   end
+
+  desc 'spec-helper', "Generate a spec helper for Backbone things"
+  def spec_helper
+    template('spec_helper.js.erb', 'spec/javascripts/helpers/backbone_spec_helper.js')
+  end
 end
 
 BackboneGenerator.start

spec/bin/backbone-generator_spec.rb

@@ -93,4 +93,12 @@ describe 'backbone-generator' do
       should_generate_collection_view
     end
   end
+
+  describe 'spec helper' do
+    it "should generate a spec helper" do
+      system %{bin/backbone-generator spec-helper}
+
+      File.file?(collection = 'spec/javascripts/helpers/backbone_spec_helper.js').should be_true
+    end
+  end
 end

templates/collection_spec.js.erb

@@ -1,21 +1,16 @@
 describe('<%= object_name %>s', function() {
-  var collection, server;
+  var collection;
 
-  beforeEach(function() {
-    server = sinon.fakeServer().create();
-  });
-
-  afterEach(function() {
-    server.restore();
-  });
+  withServer();
 
   it('should fetch records from the API', function() {
     collection = new <%= object_name %>s();
 
-    server.respondWith('GET', '<%= underscore_name %>', [ 200, { 'Content-type': 'application/json' }, "[{id: 1}]" ]);
+    this.server.respondWith('GET', '<%= underscore_name %>', this.validJSONResponse([{id: 1}]));
     collection.fetch()
-    server.respond();
+    this.server.respond();
 
     expect(collection.length).toEqual(1);
   });
-}s);
+});
+

templates/spec_helper.js.erb

@@ -0,0 +1,22 @@
+/* Backbone helpers. Requires json2 and sinon-server or the full-blown sinon. */
+
+var withServer = function() {
+  jasmine.getEnv().currentSpec.withServer();
+};
+if (isCommonJS) exports.withServer = withServer;
+
+jasmine.Env.prototype.withServer = function() {
+  this.currentSuite.beforeEach(function() {
+    this.server = sinon.fakeServer().create();
+  });
+
+  this.currentSuite.afterEach(function() {
+    this.server.restore();
+  });
+};
+
+beforeEach(function() {
+  this.validJSONResponse = function(data) {
+    return [ 200, { 'Content-type': 'application/json' }, JSON.stringify(data) ];
+  };
+});