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uldza/Rails, Capybara and Timecop test time sensitive javascript code with sinon.js

Last active October 6, 2018 07:55
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Rails, Capybara and Timecop test time sensitive javascript code with sinon.js
# Add sinon.js gem to your `group :development, :test`
gem 'sinon-rails'
# Add code to stub javascript time in your application.haml (.erb) layout file, at the same time you are using Timecop.travel
- if defined?(Timecop) && Timecop.top_stack_item
= javascript_include_tag "sinon"
- unix_millis = (Time.now.to_f * 1000.0).to_i
:javascript
sinon.useFakeTimers(#{unix_millis});
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