This is a class that abstracts away an asserted response. It purposely does not inherit from Response because it doesn't need it. That means it does not have headers or a body.

Methods
C
N
Constants
GENERIC_RESPONSE_CODES = { # :nodoc: success: "2XX", missing: "404", redirect: "3XX", error: "5XX" }
 
Attributes
[R] code
[R] name
Class Public methods
new(code_or_name)

Accepts a specific response status code as an Integer (404) or String ('404') or a response status range as a Symbol pseudo-code (:success, indicating any 200-299 status code).

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/testing/assertion_response.rb, line 18
def initialize(code_or_name)
  if code_or_name.is_a?(Symbol)
    @name = code_or_name
    @code = code_from_name(code_or_name)
  else
    @name = name_from_code(code_or_name)
    @code = code_or_name
  end

  raise ArgumentError, "Invalid response name: #{name}" if @code.nil?
  raise ArgumentError, "Invalid response code: #{code}" if @name.nil?
end
Instance Public methods
code_and_name()

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/testing/assertion_response.rb, line 31
def code_and_name
  "#{code}: #{name}"
end