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rails--rails/actionmailer/test/asset_host_test.rb
Cameron Cundiff 9a74c7b99b Do not generate default alt text in image tags
- Auto-generating content from the filename of an image is not suitable
  alternative text; alt text that isn't fully considered can be
  distracting and fatiguing for screen readers users (blind, low vision,
  dyslexic people).
- Setting a filename fallback short circuits screen reader default
  behavior and configuration for blank descriptions.
- Setting poor defaults also creates false negatives for accessibility
  linting and testing software, that makes it harder to improve
  application accessibility.

***

- After this change, if authors leave images without alt text, screen
  readers will fallback to default behavior for missing alt text.
- Also with this change, Automated linting and testing tools will
  correctly generate warnings.

[Fixes #30096]
2017-08-17 16:13:15 -04:00

39 lines
1 KiB
Ruby

# frozen_string_literal: true
require "abstract_unit"
require "action_controller"
class AssetHostMailer < ActionMailer::Base
def email_with_asset
mail to: "test@localhost",
subject: "testing email containing asset path while asset_host is set",
from: "tester@example.com"
end
end
class AssetHostTest < ActionMailer::TestCase
def setup
AssetHostMailer.configure do |c|
c.asset_host = "http://www.example.com"
end
end
def teardown
restore_delivery_method
end
def test_asset_host_as_string
mail = AssetHostMailer.email_with_asset
assert_dom_equal '<img src="http://www.example.com/images/somelogo.png" />', mail.body.to_s.strip
end
def test_asset_host_as_one_argument_proc
AssetHostMailer.config.asset_host = Proc.new { |source|
if source.starts_with?("/images")
"http://images.example.com"
end
}
mail = AssetHostMailer.email_with_asset
assert_dom_equal '<img src="http://images.example.com/images/somelogo.png" />', mail.body.to_s.strip
end
end