Rails time comparison workaround

spec_support_time_precision_patch.rb

module RemoveTimePrecisionGranularity
  def self.included(mod)
    mod.class_eval do
      extend ClassMethods
      alias_method :orig_equals, :==
    end
  end

  module ClassMethods
    def equals_method_ignore_1_second_granularity!
      alias_method :==, :__patched_eql?
    end

    def revert_to_original_equals_method!
      alias_method :==, :orig_equals
    end
  end

  # Use 1-second granularity when comparing times.
  # See http://blog.solanolabs.com/rails-time-comparisons-devil-details-etc/
  def __patched_eql?(other)
    to_i == other.to_i
  end
end

class ActiveSupport::TimeWithZone
  include RemoveTimePrecisionGranularity
end

class Time
  include RemoveTimePrecisionGranularity
end

RSpec.configure do |config|
  config.before :each, :ignore_ruby_time_precision do
    ActiveSupport::TimeWithZone.equals_method_ignore_1_second_granularity!
    Time.equals_method_ignore_1_second_granularity!
  end

  config.after :each, :ignore_ruby_time_precision do
    ActiveSupport::TimeWithZone.revert_to_original_equals_method!
    Time.revert_to_original_equals_method!
  end
end