Restart PhantomJS on timeout errors. #4662issue_4662

1 files changed, 31 insertions, 0 deletions

diff --git a/spec/support/capybara_helpers.rb b/spec/support/capybara_helpers.rb
index 9b5c3065eed..a8ba786c130 100644
--- a/spec/support/capybara_helpers.rb
+++ b/spec/support/capybara_helpers.rb
@@ -29,6 +29,37 @@ module CapybaraHelpers
   end
 end
 
+# See: https://github.com/teampoltergeist/poltergeist/issues/375#issuecomment-54171533
+def restart_phantomjs
+  puts "-> Restarting phantomjs: iterating through capybara sessions..."
+  session_pool = Capybara.send('session_pool')
+  session_pool.each do |mode,session|
+    msg = "  => #{mode} -- "
+    driver = session.driver
+    if driver.is_a?(Capybara::Poltergeist::Driver)
+      msg += "restarting"
+      driver.restart
+    else
+      msg += "not poltergeist: #{driver.class}"
+    end
+    puts msg
+  end
+end
+
+CAPYBARA_TIMEOUT_RETRIES = 3
+
 RSpec.configure do |config|
   config.include CapybaraHelpers, type: :feature
+
+  config.around(:each, type: :feature) do |ex|
+    example = RSpec.current_example
+    CAPYBARA_TIMEOUT_RETRIES.times do |i|
+      example.instance_variable_set('@exception', nil)
+      self.instance_variable_set('@__memoized', nil) # clear let variables
+      ex.run
+      break unless example.exception.is_a?(Capybara::Poltergeist::TimeoutError)
+      puts("\nCapybara::Poltergeist::TimeoutError at #{example.location}\n   Restarting phantomjs and retrying...")
+      restart_phantomjs
+    end
+  end
 end