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require 'abstract_unit'
uses_mocha 'dispatcher tests' do
class DispatcherTest < Test::Unit::TestCase
Dispatcher = ActionController::Dispatcher
def setup
@output = StringIO.new
ENV['REQUEST_METHOD'] = 'GET'
# Clear callbacks as they are redefined by Dispatcher#define_dispatcher_callbacks
Dispatcher.instance_variable_set("@prepare_dispatch_callbacks", ActiveSupport::Callbacks::CallbackChain.new)
Dispatcher.instance_variable_set("@before_dispatch_callbacks", ActiveSupport::Callbacks::CallbackChain.new)
Dispatcher.instance_variable_set("@after_dispatch_callbacks", ActiveSupport::Callbacks::CallbackChain.new)
Dispatcher.stubs(:require_dependency)
@dispatcher = Dispatcher.new(@output)
end
def teardown
ENV.delete 'REQUEST_METHOD'
end
def test_clears_dependencies_after_dispatch_if_in_loading_mode
ActiveSupport::Dependencies.expects(:clear).once
dispatch(@output, false)
end
def test_reloads_routes_before_dispatch_if_in_loading_mode
ActionController::Routing::Routes.expects(:reload).once
dispatch(@output, false)
end
def test_clears_asset_tag_cache_before_dispatch_if_in_loading_mode
ActionView::Helpers::AssetTagHelper::AssetTag::Cache.expects(:clear).once
dispatch(@output, false)
end
def test_leaves_dependencies_after_dispatch_if_not_in_loading_mode
ActionController::Routing::Routes.expects(:reload).never
ActiveSupport::Dependencies.expects(:clear).never
dispatch
end
# Stub out dispatch error logger
class << Dispatcher
def log_failsafe_exception(status, exception); end
end
def test_failsafe_response
CGI.expects(:new).raises('some multipart parsing failure')
Dispatcher.expects(:log_failsafe_exception)
assert_nothing_raised { dispatch }
assert_equal "Status: 400 Bad Request\r\nContent-Type: text/html\r\n\r\n<html><body><h1>400 Bad Request</h1></body></html>", @output.string
end
def test_prepare_callbacks
a = b = c = nil
Dispatcher.to_prepare { |*args| a = b = c = 1 }
Dispatcher.to_prepare { |*args| b = c = 2 }
Dispatcher.to_prepare { |*args| c = 3 }
# Ensure to_prepare callbacks are not run when defined
assert_nil a || b || c
# Run callbacks
@dispatcher.send :run_callbacks, :prepare_dispatch
assert_equal 1, a
assert_equal 2, b
assert_equal 3, c
# Make sure they are only run once
a = b = c = nil
@dispatcher.send :dispatch
assert_nil a || b || c
end
def test_to_prepare_with_identifier_replaces
a = b = nil
Dispatcher.to_prepare(:unique_id) { |*args| a = b = 1 }
Dispatcher.to_prepare(:unique_id) { |*args| a = 2 }
@dispatcher.send :run_callbacks, :prepare_dispatch
assert_equal 2, a
assert_equal nil, b
end
private
def dispatch(output = @output, cache_classes = true)
controller = mock
controller.stubs(:process).returns(controller)
controller.stubs(:out).with(output).returns('response')
ActionController::Routing::Routes.stubs(:recognize).returns(controller)
Dispatcher.define_dispatcher_callbacks(cache_classes)
Dispatcher.dispatch(nil, {}, output)
end
def assert_subclasses(howmany, klass, message = klass.subclasses.inspect)
assert_equal howmany, klass.subclasses.size, message
end
end
end
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