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require 'rexml/document'
require 'html/document'
module ActionController
module Assertions
# A small suite of assertions that test responses from Rails applications.
module ResponseAssertions
# Asserts that the response is one of the following types:
#
# * <tt>:success</tt> - Status code was 200
# * <tt>:redirect</tt> - Status code was in the 300-399 range
# * <tt>:missing</tt> - Status code was 404
# * <tt>:error</tt> - Status code was in the 500-599 range
#
# You can also pass an explicit status number like assert_response(501)
# or its symbolic equivalent assert_response(:not_implemented).
# See ActionController::StatusCodes for a full list.
#
# ==== Examples
#
# # assert that the response was a redirection
# assert_response :redirect
#
# # assert that the response code was status code 401 (unauthorized)
# assert_response 401
#
def assert_response(type, message = nil)
clean_backtrace do
if [ :success, :missing, :redirect, :error ].include?(type) && @response.send("#{type}?")
assert_block("") { true } # to count the assertion
elsif type.is_a?(Fixnum) && @response.response_code == type
assert_block("") { true } # to count the assertion
elsif type.is_a?(Symbol) && @response.response_code == ActionController::StatusCodes::SYMBOL_TO_STATUS_CODE[type]
assert_block("") { true } # to count the assertion
else
if @response.error?
exception = @response.template.instance_variable_get(:@exception)
exception_message = exception && exception.message
assert_block(build_message(message, "Expected response to be a <?>, but was <?>\n<?>", type, @response.response_code, exception_message.to_s)) { false }
else
assert_block(build_message(message, "Expected response to be a <?>, but was <?>", type, @response.response_code)) { false }
end
end
end
end
# Assert that the redirection options passed in match those of the redirect called in the latest action.
# This match can be partial, such that assert_redirected_to(:controller => "weblog") will also
# match the redirection of redirect_to(:controller => "weblog", :action => "show") and so on.
#
# ==== Examples
#
# # assert that the redirection was to the "index" action on the WeblogController
# assert_redirected_to :controller => "weblog", :action => "index"
#
# # assert that the redirection was to the named route login_url
# assert_redirected_to login_url
#
def assert_redirected_to(options = {}, message=nil)
clean_backtrace do
assert_response(:redirect, message)
return true if options == @response.redirected_to
ActionController::Routing::Routes.reload if ActionController::Routing::Routes.empty?
begin
url = {}
original = { :expected => options, :actual => @response.redirected_to.is_a?(Symbol) ? @response.redirected_to : @response.redirected_to.dup }
original.each do |key, value|
if value.is_a?(Symbol)
value = @controller.respond_to?(value, true) ? @controller.send(value) : @controller.send("hash_for_#{value}_url")
end
unless value.is_a?(Hash)
request = case value
when NilClass then nil
when /^\w+:\/\// then recognized_request_for(%r{^(\w+://.*?(/|$|\?))(.*)$} =~ value ? $3 : nil)
else recognized_request_for(value)
end
value = request.path_parameters if request
end
if value.is_a?(Hash) # stringify 2 levels of hash keys
if name = value.delete(:use_route)
route = ActionController::Routing::Routes.named_routes[name]
value.update(route.parameter_shell)
end
value.stringify_keys!
value.values.select { |v| v.is_a?(Hash) }.collect { |v| v.stringify_keys! }
if key == :expected && value['controller'] == @controller.controller_name && original[:actual].is_a?(Hash)
original[:actual].stringify_keys!
value.delete('controller') if original[:actual]['controller'].nil? || original[:actual]['controller'] == value['controller']
end
end
if value.respond_to?(:[]) && value['controller']
value['controller'] = value['controller'].to_s
if key == :actual && value['controller'].first != '/' && !value['controller'].include?('/')
new_controller_path = ActionController::Routing.controller_relative_to(value['controller'], @controller.class.controller_path)
value['controller'] = new_controller_path if value['controller'] != new_controller_path && ActionController::Routing.possible_controllers.include?(new_controller_path) && @response.redirected_to.is_a?(Hash)
end
value['controller'] = value['controller'][1..-1] if value['controller'].first == '/' # strip leading hash
end
url[key] = value
end
@response_diff = url[:actual].diff(url[:expected]) if url[:actual]
msg = build_message(message, "expected a redirect to <?>, found one to <?>, a difference of <?> ", url[:expected], url[:actual], @response_diff)
assert_block(msg) do
url[:expected].keys.all? do |k|
if k == :controller then url[:expected][k] == ActionController::Routing.controller_relative_to(url[:actual][k], @controller.class.controller_path)
else parameterize(url[:expected][k]) == parameterize(url[:actual][k])
end
end
end
rescue ActionController::RoutingError # routing failed us, so match the strings only.
msg = build_message(message, "expected a redirect to <?>, found one to <?>", options, @response.redirect_url)
url_regexp = %r{^(\w+://.*?(/|$|\?))(.*)$}
eurl, epath, url, path = [options, @response.redirect_url].collect do |url|
u, p = (url_regexp =~ url) ? [$1, $3] : [nil, url]
[u, (p.first == '/') ? p : '/' + p]
end.flatten
assert_equal(eurl, url, msg) if eurl && url
assert_equal(epath, path, msg) if epath && path
end
end
end
# Asserts that the request was rendered with the appropriate template file.
#
# ==== Examples
#
# # assert that the "new" view template was rendered
# assert_template "new"
#
def assert_template(expected = nil, message=nil)
clean_backtrace do
rendered = expected ? @response.rendered_file(!expected.include?('/')) : @response.rendered_file
msg = build_message(message, "expecting <?> but rendering with <?>", expected, rendered)
assert_block(msg) do
if expected.nil?
!@response.rendered_with_file?
else
expected == rendered
end
end
end
end
private
# Recognizes the route for a given path.
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
# Proxy to to_param if the object will respond to it.
def parameterize(value)
value.respond_to?(:to_param) ? value.to_param : value
end
end
end
end
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