How can I assert that no route matches in a Rails integration test?
There is a similar way for checking this in Rails 4 by asserting on the UrlGenerationError exception:
def test_no_routes_match_when_neither_foo_nor_bar_exist assert_raises(ActionController::UrlGenerationError) do get '/category/this-is-neither-a-foo-nor-a-bar' endend
I ended up doing this:
def test_no_routes_match_when_neither_foo_nor_bar_exist assert_raises(ActionController::RoutingError) do assert_recognizes({}, '/category/this-is-neither-a-foo-nor-a-bar') end endSlightly silly, but it gets the job done.
Note that this does not work with Rails 4. See the answer below for a Rails 4 solution.
By calling #recognize_path you wont receive a false. Instead you'll get an error, but then you found the clue you were looking for.
test "No routes match when neither_foo_nor_ bar exist" do begin assert_not(Rails.application.routes.recognize_path( 'category/this-is-neither-a-foo-nor-a-bar')) rescue ActionController::RoutingError => error assert error.message.start_with? "No route matches" endend