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require 'abstract_unit'
class DispatcherTest < Test::Unit::TestCase
Dispatcher = ActionController::Dispatcher
def setup
ENV['REQUEST_METHOD'] = 'GET'
Dispatcher.middleware = ActionDispatch::MiddlewareStack.new do |middleware|
middlewares = File.expand_path(File.join(File.dirname(__FILE__), "../../lib/action_controller/dispatch/middlewares.rb"))
middleware.instance_eval(File.read(middlewares))
end
# 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)
end
def teardown
ENV.delete 'REQUEST_METHOD'
end
def test_clears_dependencies_after_dispatch_if_in_loading_mode
ActiveSupport::Dependencies.expects(:clear).once
dispatch(false)
end
def test_reloads_routes_before_dispatch_if_in_loading_mode
ActionController::Routing::Routes.expects(:reload).once
dispatch(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
Dispatcher.any_instance.expects(:_call).raises('b00m')
ActionDispatch::Failsafe.any_instance.expects(:log_failsafe_exception)
assert_nothing_raised do
assert_equal [
500,
{"Content-Type" => "text/html"},
"<html><body><h1>500 Internal Server Error</h1></body></html>"
], dispatch
end
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.run_prepare_callbacks
assert_equal 1, a
assert_equal 2, b
assert_equal 3, c
# Make sure they are only run once
a = b = c = nil
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.run_prepare_callbacks
assert_equal 2, a
assert_equal nil, b
end
private
def dispatch(cache_classes = true)
ActionController::Routing::RouteSet.any_instance.stubs(:call).returns([200, {}, 'response'])
Dispatcher.define_dispatcher_callbacks(cache_classes)
Dispatcher.new.call({'rack.input' => StringIO.new('')})
end
def assert_subclasses(howmany, klass, message = klass.subclasses.inspect)
assert_equal howmany, klass.subclasses.size, message
end
end
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