在我的Rails Coveralls上安装了4.2.7.1 gem，并将下面的代码添加到spec/spec_helper.rb的顶部：
require 'coveralls'
require 'simplecov'
SimpleCov.formatters = [
SimpleCov::Formatter::HTMLFormatter,
Coveralls::SimpleCov::Formatter
]
Coveralls.wear!
这会导致连身裤发射两次（如下图所示，更完整地显示in this gist）。
[Coveralls] Set up the SimpleCov formatter.
[Coveralls] Using SimpleCov's default settings.
cocktail
user can create a cocktail
ingredients
user can create ingredients
User can sign in and out
user not signed in and on the homepage
should see a 'sign in' link and a 'sign up' link
should not see 'sign out' link
user signed in on the homepage
should see 'sign out' link
should not see a 'sign in' link and a 'sign up' link
Cocktail
should have many ingredients
example at ./spec/models/cocktail_spec.rb:5
Finished in 0.25632 seconds (files took 1.62 seconds to load)
10 examples, 0 failures, 0 pending
[Coveralls] Outside the CI environment, not sending data.
[Coveralls] Some handy coverage stats:
* app/controllers/application_controller.rb => 100%
* app/controllers/cocktails_controller.rb => 100%
* app/controllers/home_controller.rb => 100%
* app/controllers/ingredients_controller.rb => 75%
...
[Coveralls] Set up the SimpleCov formatter.
[Coveralls] Using SimpleCov's default settings.
cocktail
user can create a cocktail
ingredients
user can create ingredients
User can sign in and out
user not signed in and on the homepage
should see a 'sign in' link and a 'sign up' link
should not see 'sign out' link
user signed in on the homepage
should see 'sign out' link
should not see a 'sign in' link and a 'sign up' link
Cocktail
should have many ingredients
example at ./spec/models/cocktail_spec.rb:5
Finished in 0.26228 seconds (files took 1.6 seconds to load)
10 examples, 0 failures, 0 pending
[Coveralls] Outside the CI environment, not sending data.
[Coveralls] Some handy coverage stats:
* app/controllers/application_controller.rb => 100%
* app/controllers/cocktails_controller.rb => 100%
* app/controllers/home_controller.rb => 100%
* app/controllers/ingredients_controller.rb => 75%
* app/helpers/application_helper.rb => 100%
* app/helpers/cocktails_helper.rb => 100%
* app/helpers/home_helper.rb => 100%
* app/helpers/ingredients_helper.rb => 100%
ex.html.erb_spec.rb => 100%
知道怎么解决吗？