QA/Fennec/Add option to load cached pages when offline

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Overview

Purpose

The purpose of this wiki is to serve as a general test plan for verifying that cached pages can be loaded when being offline

Ownership

Developer contacts: Mark Finkle (:mfinkle)

QA: Teodora Vermesan (:TeoVermesan)

Overall Status

[LANDED] Nightly 46: first landed on - 2016-01-07

[LANDED] Aurora 46: first landed on - 2016-01-26

[LANDED] Beta: first landed on 27-04-2016

Testing Summary

Scope of testing

The testing will be focus on

  • verifying that a cached version of a webpage when being offline is shown
  • verifying that when page was loaded in cache, user goes offline, next time opening the tab, it tries to reload the page. Instead of showing the network error *message, it will now show the cached version.
  • verifying that a snackbar toast will be displayed at the bottom
  • verifying that an offline version of a page I recently visited is available

Environments

Testing will be performed on following devices:

  • Phones
    • 4.x
    • 5.x
    • 6.0
  • Tablet
    • 4.x
    • 5.x
    • 6.0

Specifications

  • Show users automatically a cached version of a webpage when being offline.
  • Covers the use case that a page was loaded in cache, user goes offline, next time opening the tab, it (as usual) tries to reload the page. Instead of showing the network error *message, it will now show the cached version, if available, with a snackbar at the bottom
  • Times where it will not work
    • browser cache is already full, occupied with other tabs/pages
    • HTML page includes meta no-cache header

User stories

  • As a user, I want to able to view a page I visited previously when offline instead of seeing a 'network error' page, in order to have a more seamless browsing experience
  • As a user, I want to be informed if an offline version of a page I recently visited is available
  • As a user, when clicking on the offline version, I can view the page in Reader View, if Reader view is available

Acceptance Criteria

  • When user is offline, the user is presented with a notification, after they've (re)loaded the page, explaining that they currently are viewing a cached version of the page.
  • If cached version is available offline and reader view icon is present, user can switch between reader view and non-reader view without retrieving an error page.

Additional Info

  • This data is already currently being cached / stored by Firefox. With this feature, we aren't collecting or storing anything new from our current experience, ie we're not saving anything over-and-above what we do today. Instead, we're using the information that is currently stored in a usable and delightful way.
  • The cached page is scrollable.

Testing details

Test Cases

Testing days

Date:07-01-2015

  • Load mozilla.org, cut off wifi, close and reopen Firefox and from history choose mozilla.org, the page load correctly and a snackbar is displayed at the bottom of the page: "Loading page from offline storage".
  • Loading page from offline storage





Date:01-02-2015

  • Load mozilla.org, cut off wifi, close and reopen Firefox and from history choose mozilla.org, the page load correctly and a snackbar is displayed at the bottom of the page: "Loading page from offline storage".

Date:12-04-2016 (Mid- Aurora testing)

Date:04-04-2016(47beta 2)

  • offline cache feature is disabled

Date:08-06-2016

  • nightly 50, aurora 49:
    • Load mozilla.org, cut off wifi, close and reopen Firefox and from history choose mozilla.org, the page load correctly and a snackbar is displayed at the bottom of the page: "Showing offline version".
Loading page from offline storage





  • beta 48b1:
      • Load mozilla.org, cut off wifi, close and reopen Firefox and from history choose mozilla.org, the page load correctly and a snackbar is displayed at the bottom of the page: "Loading page from offline storage".
  • Loading page from offline storage






Bug Work

Tracking bugs

  • bugs to track the feature

ex:

Full Query
ID Summary Priority Status
935190 Try to show cached pages when Fennec is offline -- RESOLVED
1064611 Allow requesting cached content from nsIWebNavigation -- NEW
1236616 Enable "browser.tabs.useCache" by default -- RESOLVED

3 Total; 1 Open (33.33%); 2 Resolved (66.67%); 0 Verified (0%);


Still issues

[NEW] Bug 1064611 - Allow requesting cached content from nsIWebNavigation
[NEW] Bug 1233250 - Indicate cached version of site is being displayed
[NEW] Bug 1236130 - Network change notification issue causes a caching problem, (some) sites do not update anymore
[NEW] Bug 1258428 - Page loaded from cache snackbar appears for pages that have never been visited

Bug fixed

[RESOLVED FIXED] Bug 935190 - Try to show cached pages when Fennec is offline

↳ 2016-01-07: verified fixed on Firefox for Android 46.0a1 (2016-01-06) using Samsung Galaxy S4 (Android 5.0);

[RESOLVED FIXED] Bug 1236616 - Enable "browser.tabs.useCache" by default
[RESOLVED FIXED] Bug 1253598 - Disable offline cache feature on release

Signoff

Criteria

  • All test cases should be executed
  • All blockers, criticals must be fixed and verified or have an agreed-upon timeline for being fixed

Results

Nightly testing

  • load a page, go offline, close and reopen Firefox and from history choose the page=> the page is load correctly
  • a snackbar toast is displayed at the bottom
  • the cached version of site is not being displayed

Aurora testing

  • load a page, go offline, close and reopen Firefox and from history choose the page=> the page is load correctly
  • a snackbar toast is displayed at the bottom
  • the cached version of site is not being displayed

Beta testing

  • load a page, go offline, close and reopen Firefox and from history choose the page=> the page is load correctly
  • a snackbar toast is displayed at the bottom
  • the cached version of site is not being displayed
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