Merge pull request #165 from rubycdp/fix-163-timeout-error

Fix #163 improve timeout error description

Author: route

lib/ferrum.rb

@@ -47,7 +47,7 @@ class ProcessTimeoutError < Error
 
     def initialize(timeout, output)
       @output = output
-      super("Browser did not produce websocket url within #{timeout} seconds")
+      super("Browser did not produce websocket url within #{timeout} seconds, try to increase `:process_timeout`. See https://github.com/rubycdp/ferrum#customization")
     end
   end
 

spec/browser_spec.rb

@@ -60,7 +60,7 @@ module Ferrum
         Browser.new(browser_path: path, process_timeout: 2)
       }.to raise_error(
         Ferrum::ProcessTimeoutError,
-        "Browser did not produce websocket url within 2 seconds"
+        "Browser did not produce websocket url within 2 seconds, try to increase `:process_timeout`. See https://github.com/rubycdp/ferrum#customization"
       )
     end