The Rails server starts on a different port every time you run the system tests.
Is there any way to specify which port this should be and not have it change on every run?
I would like to test clicking a link from an ActionMailer message in my system test. I need to specify a host in my test environment config file for this and I need a static port number for that.
Already answered here: https://stackoverflow.com/a/6807498/338859
If using Capybara you can set the port in the spec_helper.rb like so:
Capybara.server_port = 1234
Also see this blog post, it also has some mentions for emails: System of a test: Proper browser testing in Ruby on Rails