mediawiki-extensions-Multim.../tests/browser/features/step_definitions/basic_mmv_navigation_steps.rb
Gilles Dubuc 28b8f5095e Use cross-origin img attribute instead of data URI
After lots of experimenting with Wireshark and
current Chrome + Firefox on Ubuntu 13.10, this is my
current understanding of the caching when preloading images
with AJAX requests:

* on Chrome, the image request always comes from browser cache
* Firefox makes two separate requests by default
* Firefox with img.crossOrigin = 'anonymous' makes two separate
  requests, but the second one is a 304 (does not load the
  image twice)
* when the image has already been cached by the browser (but not in
  this session), Chrome skips both requests; Firefox skips the AJAX
  request, but sends the normal one, and it returns with 304.

"wish I knew this when I started" things:
* the Chrome DevTools has an option to disable cache. When this is
  enabled, requests in the same document context still come from
  cache (so if I load the page, fire an AJAX request, then without
  reloading the page, fire an AJAX request to the same URL, then the
  second request will be cached), but an AJAX request - image request
  pair is an exception from this.
* when using Ctrl-F5 in Firefox, requests on that page will never hit
  the cache (even AJAX request fired after user activity; even if
  two identical requests follow each other). When using clear cache
  + normal reload, this is not the case.
* if the image does not have an Allow-Origin header and is loaded
  with crossOrigin=true, Firefox will refuse to load it. Chrome will
  log an error in the console saying it refused to load it, but will
  actually load it.
* Wireshark rocks.

Pushed some tech debt (browser + domain whitelist) into other tickets:
https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/232
https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/233

Reverted commits:
    8a8d74f01d.
    63021d0b0e.

Change-Id: I84ab2f3ac0a9706926adf7fe8726ecd9e9f843e0
Bug: 61542
Mingle: https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/207
2014-02-24 07:56:40 +00:00

146 lines
5.8 KiB
Ruby

Given(/^I am at a wiki article with at least two embedded pictures$/) do
visit(LightboxDemoPage)
on(LightboxDemoPage).image1_in_article_element.should be_visible
end
When(/^I click on the first image in the article$/) do
on(LightboxDemoPage) do |page|
page.image1_in_article
end
end
When(/^I click the next arrow$/) do
on(LightboxDemoPage) do |page|
page.mmv_next_button_element.when_present.click
end
end
When(/^I click the previous arrow$/) do
on(LightboxDemoPage) do |page|
page.mmv_previous_button_element.when_present.click
end
end
When(/^I close MMV$/) do
on(LightboxDemoPage) do |page|
page.mmv_close_button_element.when_present.click
end
end
Then(/^I should be navigated back to the original wiki article$/) do
on(LightboxDemoPage) do |page|
page.image1_in_article_element.should be_visible
page.mmv_wrapper_element.should_not be_visible
end
end
Then(/^the image and metadata of the next image should appear$/) do
on(LightboxDemoPage) do |page|
# MMV was launched, article is not visible yet
page.image1_in_article_element.should_not be_visible
check_elements_in_viewer_for_image2(page)
end
end
Then(/^the image metadata and the image itself should be there$/) do
on(LightboxDemoPage) do |page|
# MMV was launched, article is not visible now
page.image1_in_article_element.should_not be_visible
check_elements_in_viewer_for_image1(page)
end
end
Then(/^the image and metadata of the previous image should appear$/) do
on(LightboxDemoPage) do |page|
# MMV was launched, article is not visible yet
page.image1_in_article_element.should_not be_visible
check_elements_in_viewer_for_image1(page)
end
end
# Helper function that verifies the presence of various elements in viewer
# while looking at image1 (Kerala)
def check_elements_in_viewer_for_image1(page)
# Check basic MMV elements are present
page.mmv_wrapper_element.should be_visible
page.mmv_image_div_element.should be_visible
# Check image content
page.mmv_image_div_element.image_element.attribute('src').should match /Kerala/
# Check basic metadata is present
# Title
page.mmv_metadata_title_element.when_present.text.should match /Sunrise over fishing boats in Kerala/
# License
page.mmv_metadata_license_element.when_present.attribute('href').should match /boats_in_Kerala.jpg$/
page.mmv_metadata_license_element.when_present.text.should match /CC BY-SA 3.0/
# Credit
page.mmv_metadata_credit_element.when_present.should be_visible
page.mmv_metadata_source_element.when_present.text.should match /Own work/
# Image metadata
page.mmv_image_metadata_wrapper_element.when_present.should be_visible
# Caption
page.mmv_image_metadata_caption_element.when_present.text.should match /Sunrise over fishing boats/
# Description
page.mmv_image_metadata_desc_element.when_present.text.should match /Sunrise over fishing boats on the beach south of Kovalam/
# Image metadata links
page.mmv_image_metadata_links_wrapper_element.when_present.should be_visible
# Repo link
page.mmv_image_metadata_repo_link_element.when_present.text.should match /Learn more on Wikimedia Commons/
page.mmv_image_metadata_repo_link_element.when_present.attribute('href').should match /boats_in_Kerala.jpg$/
# Category links
page.mmv_image_metadata_category_links_wrapper_element.when_present.should be_visible
# File usage
page.mmv_image_metadata_fileusage_wrapper_element.when_present.should be_visible
page.mmv_image_metadata_fileusage_wrapper_element.when_present.h3_element.text.should match /Used in [0-9] page/
page.mmv_image_metadata_fileusage_local_section_title_element.when_present.text.should match /On this site/
end
# Helper function that verifies the presence of various elements in viewer
# while looking at image2 (Aquarium)
def check_elements_in_viewer_for_image2(page)
# MMV was launched, article is not visible
page.image1_in_article_element.should_not be_visible
# Check basic MMV elements are present
page.mmv_wrapper_element.should be_visible
page.mmv_image_div_element.should be_visible
# Check image content
page.mmv_image_div_element.image_element.attribute('src').should match /Offsite/
# Check basic metadata is present
# Title
page.mmv_metadata_title_element.when_present.text.should match /All Hands Offsite/
# License
page.mmv_metadata_license_element.when_present.attribute('href').should match /All_Hands_Offsite.*\.jpg$/
page.mmv_metadata_license_element.when_present.text.should match /CC BY-SA 3.0/
# Credit
page.mmv_metadata_credit_element.when_present.should be_visible
page.mmv_metadata_source_element.when_present.text.should match /Wikimedia Foundation/
# Image metadata
page.mmv_image_metadata_wrapper_element.when_present.should be_visible
# Caption
page.mmv_image_metadata_caption_element.when_present.text.should match /Tropical Fish Aquarium/
# Description
page.mmv_image_metadata_desc_element.when_present.text.should match /Photo from Wikimedia Foundation/
# Image metadata links
page.mmv_image_metadata_links_wrapper_element.when_present.should be_visible
# Repo link
page.mmv_image_metadata_repo_link_element.when_present.text.should match /Learn more on Wikimedia Commons/
page.mmv_image_metadata_repo_link_element.when_present.attribute('href').should match /All_Hands_Offsite.*\.jpg$/
# Category links
page.mmv_image_metadata_category_links_wrapper_element.when_present.should be_visible
# File usage
page.mmv_image_metadata_fileusage_wrapper_element.when_present.should be_visible
page.mmv_image_metadata_fileusage_wrapper_element.when_present.h3_element.text.should match /Used in [0-9] page/
page.mmv_image_metadata_fileusage_local_section_title_element.when_present.text.should match /On this site/
end