require 'test/unit'
require 'test/unit/assertions'
module ActionController
module Assertions
module RoutingAssertions
# Asserts that the routing of the given path was handled correctly and that the parsed options match.
#
# assert_recognizes({:controller => 'items', :action => 'index'}, 'items')
#
# Pass a hash in the second argument to specify the request method. This is useful for routes
# requiring a specific method.
#
# assert_recognizes({:controller => 'items', :action => 'create'}, {:path => 'items', :method => :post})
#
def assert_recognizes(expected_options, path, extras={}, message=nil)
if path.is_a? Hash
request_method = path[:method]
path = path[:path]
else
request_method = nil
end
clean_backtrace do
ActionController::Routing::Routes.reload if ActionController::Routing::Routes.empty?
request = recognized_request_for(path, request_method)
expected_options = expected_options.clone
extras.each_key { |key| expected_options.delete key } unless extras.nil?
expected_options.stringify_keys!
routing_diff = expected_options.diff(request.path_parameters)
msg = build_message(message, "The recognized options <?> did not match <?>, difference: <?>",
request.path_parameters, expected_options, expected_options.diff(request.path_parameters))
assert_block(msg) { request.path_parameters == expected_options }
end
end
# Asserts that the provided options can be used to generate the provided path.
def assert_generates(expected_path, options, defaults={}, extras = {}, message=nil)
clean_backtrace do
expected_path = "/#{expected_path}" unless expected_path[0] == ?/
# Load routes.rb if it hasn't been loaded.
ActionController::Routing::Routes.reload if ActionController::Routing::Routes.empty?
generated_path, extra_keys = ActionController::Routing::Routes.generate_extras(options, extras)
found_extras = options.reject {|k, v| ! extra_keys.include? k}
msg = build_message(message, "found extras <?>, not <?>", found_extras, extras)
assert_block(msg) { found_extras == extras }
msg = build_message(message, "The generated path <?> did not match <?>", generated_path,
expected_path)
assert_block(msg) { expected_path == generated_path }
end
end
# Asserts that path and options match both ways; in other words, the URL generated from
# options is the same as path, and also that the options recognized from path are the same as options
def assert_routing(path, options, defaults={}, extras={}, message=nil)
assert_recognizes(options, path, extras, message)
controller, default_controller = options[:controller], defaults[:controller]
if controller && controller.include?(?/) && default_controller && default_controller.include?(?/)
options[:controller] = "/#{controller}"
end
assert_generates(path, options, defaults, extras, message)
end
private
def recognized_request_for(path, request_method = nil)
path = "/#{path}" unless path.first == '/'
# Assume given controller
request = ActionController::TestRequest.new({}, {}, nil)
request.env["REQUEST_METHOD"] = request_method.to_s.upcase if request_method
request.path = path
ActionController::Routing::Routes.recognize(request)
request
end
end
end
end