test_multi_select.rb

=begin
Notes
=====
Labels: On the label you should put a "for" attribute if you're not using something like simple_form
This helps capybara to find your field
e.g. <label for="my_field_id">Some label</label>
=end

field = "Label on my field"
value = "existing option in list"

# Find the field
field = find_field(field_name)

# Open the Chosen drop down
page.execute_script(%Q!$("##{field[:id]}_chzn").mousedown()!)
# Simulate text being typed
typed_text = ""
value.chars.each do |char|
  typed_text += char
  # Put a value in the search field
  page.execute_script(%Q!$("##{field[:id]}_chzn input").val("#{typed_text}")!)
  # Fire the search via a keyup
  page.execute_script(%Q!$("##{field[:id]}_chzn input").keyup()!)
end

# Do the selection via firing a keyup on the Enter key when you have the exact text for the option
page.execute_script(%Q!$("##{field[:id]}_chzn input").trigger(jQuery.Event("keyup", { keyCode: $.ui.keyCode.ENTER }))!)

# OR

# Do the selection via firing a mouse up on the option when you have partial text for the option
page.execute_script(%Q!$("##{field[:id]}_chzn .chzn-results li:contains('#{value}')").mouseup()!)

test_single_select.rb

=begin
Notes
=====
Labels: On the label you should put a "for" attribute if you're not using something like simple_form
This helps capybara to find your field
e.g. <label for="my_field_id">Some label</label>
=end

field = "Label on my field"
value = "partial text for an existing option in list"

# Find the field
field = find_field(field_name)
# Open the Chosen drop down
page.execute_script(%Q!$("##{field[:id]}_chzn").mousedown()!)
# Simulate text being typed
typed_text = ""
value.chars.each do |char|
  typed_text += char
  # Put a value in the search field
  page.execute_script(%Q!$("##{field[:id]}_chzn input").val("#{typed_text}")!)
  # Fire the search via a keyup
  page.execute_script(%Q!$("##{field[:id]}_chzn input").keyup()!)
end

# If you're using Ajax Chosen then wait for the Ajax callback
sleep 1
start_time = Time.now
page.evaluate_script('jQuery.isReady&&jQuery.active==0').class.should_not eql(String) until page.evaluate_script('jQuery.isReady&&jQuery.active==0') or (start_time + 5.seconds) < Time.now do
  sleep 1
end

# Do the selection via firing a mouse up on the option
page.execute_script(%Q!$("##{field[:id]}_chzn .chzn-results li:contains('#{value}')").mouseup()!)

# Check that the selection has been made
# Webkit
select_option_text = find_field(field_name).find("option[@value='#{selected_value}']").text
# Selenium
select_option_text = find_field(field_name).find("option[@value='#{selected_value}']")[:text]