```ruby
require 'listen'

ENV["TEST_LATENCY"] ||= "0.25"

Dir["#{File.dirname(__FILE__)}/support/**/*.rb"].each { |f| require f }

# See http://rubydoc.info/gems/rspec-core/RSpec/Core/Configuration
RSpec.configure do |config|
  config.color_enabled = true
  config.order = :random
  config.filter_run :focus => true
  config.treat_symbols_as_metadata_keys_with_true_values = true
  config.run_all_when_everything_filtered = true
end

def test_latency
  ENV["TEST_LATENCY"].to_f
end
```

Add the ability to skip tests
user
```ruby
require 'listen'

ENV["TEST_LATENCY"] ||= "0.25"

Dir["#{File.dirname(__FILE__)}/support/**/*.rb"].each { |f| require f }

# See http://rubydoc.info/gems/rspec-core/RSpec/Core/Configuration
RSpec.configure do |config|
  config.color_enabled = true
  config.order = :random
  config.filter_run :focus => true
  config.treat_symbols_as_metadata_keys_with_true_values = true
  config.run_all_when_everything_filtered = true
  config.filter_run_excluding :broken => true
end

def test_latency
  ENV["TEST_LATENCY"].to_f
end
```
assistant