Try system testing image upload in comments

test/system/comment_test.rb

@@ -0,0 +1,58 @@
+require "application_system_test_case"
+# https://guides.rubyonrails.org/testing.html#implementing-a-system-test
+
+class SearchTest < ApplicationSystemTestCase
+  Capybara.default_max_wait_time = 60
+
+  def setup
+    activate_authlogic
+  end
+
+  test 'adding an image into a comment box' do
+
+    # log in
+    visit '/'
+    click_on 'Login'
+    fill_in("username-login", with: "Bob")
+    fill_in("password-signup", with: "secretive")
+    click_on "Log in"
+    # assert_selector('h1', text: "Dashboard")
+
+    visit nodes(:blog).path
+
+    # we could see if an image gets created:
+    # assert_no_difference 'Image.count' do
+
+      # note this would be more complex with more than one comment bc of "reply" form
+      attach_file('fileinput', "#{Rails.root.to_s}/public/images/pl.png", visible: false)
+
+    # end
+
+    wait_for_ajax # wait for it to upload and re-appear
+    assert_selector('textarea#text-input', text: '![](/some/imageid.png)')
+
+    # click_button 'Preview'
+    # assert_equal 1, page.evaluate_script("$('.comment-form div#preview').is(':visible')")
+
+    click_button 'Publish'
+
+    assert_selector('.comment-form textarea#text-input', text: '') # the textarea should clear
+
+    # assert some javascript:
+    # assert_equal 1, page.evaluate_script("$('.typeahead.dropdown-menu').find('li').length")
+
+  end
+end
+
+# https://stackoverflow.com/questions/36536111/waiting-for-ajax-with-capybara-poltergeist
+def wait_for_ajax
+  Timeout.timeout(Capybara.default_max_wait_time) do
+    loop until finished_all_ajax_requests?
+  end
+end
+
+def finished_all_ajax_requests?
+  request_count = page.evaluate_script("$.active").to_i
+  request_count && request_count.zero?
+rescue Timeout::Error
+end