```ruby
$:.unshift(File.expand_path("../lib", File.dirname(__FILE__)))
require "cuba"

prepare { Cuba.reset! }

def assert_response(body, expected)
  arr = []
  body.each { |line| arr << line }

  flunk "#{arr.inspect} != #{expected.inspect}" unless arr == expected
end
```

Add a print for assert_response success.
user
```ruby
$:.unshift(File.expand_path("../lib", File.dirname(__FILE__)))
require "cuba"

prepare { Cuba.reset! }

def assert_response(body, expected)
  arr = []
  body.each { |line| arr << line }

  flunk "#{arr.inspect} != #{expected.inspect}" unless arr == expected
  print "."
end
```
assistant