QA/FLAC support

From MozillaWiki
< QA
Jump to: navigation, search

FLAC support

Revision History

This section describes the modifications that have been made to this wiki page. A new row has been completed each time the content of this document is updated (small corrections for typographical errors do not need to be recorded). The description of the modification contains the differences from the prior version, in terms of what sections were updated and to what extent.

Date Version Author Description
2016-09-16 1.0 Ciprian Georgiu Created first draft



Detail the purpose of this document. For example:

  • The test scope, focus areas and objectives
  • The test responsibilities
  • The test strategy for the levels and types of test for this release
  • The entry and exit criteria
  • The basis of the test estimates
  • Any risks, issues, assumptions and test dependencies
  • The test schedule and major milestones
  • The test deliverables


This wiki details the testing that will be performed by the project team for the FLAC support project. It defines the overall testing requirements and provides an integrated view of the project test activities. Its purpose is to document:

  • what will be tested,
  • how testing will be performed.


Engineering contact(s):

QA contact(s):

Testing summary

Scope of Testing

In Scope

Testing efforts will be focused on confirming that FLAC support is working as expected for eligible audio content.

Out of Scope

The full functionality of the FLAC (Free Lossless Audio Codec) is not included in the testing efforts. Only Firefox support for the FLAC audio feature is tested. Although, a smoke will be run on the functionality part.

Requirements for testing


Full testing will be done on following OSes:

  • Windows 7
  • Windwos 10
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS
  • Mac OS X 10.11 or greater

What is FLAC?

FLAC stands for Free Lossless Audio Codec, an audio format similar to MP3, but lossless, meaning that audio is compressed in FLAC without any loss in quality. This is similar to how Zip works, except with FLAC you will get much better compression because it is designed specifically for audio, and you can play back compressed FLAC files in your favorite player (or your car or home stereo) just like you would an MP3 file.

FLAC stands out as the fastest and most widely supported lossless audio codec, and the only one that at once is non-proprietary, is unencumbered by patents, has an open-source reference implementation, has a well documented format and API, and has several other independent implementations.

Test Objectives

This section details the progression test objectives that will be covered. Please note that this is at a high level. For large projects, a suite of test cases would be created which would reference directly back to this master. This could be documented in bullet form or in a table similar to the one below.

Ref Function Test Objective Evaluation Criteria Test Type Owners
1 FLAC support core functionality is intact on web sites with eligible content Verify that all the core functionality associated to FLAC support works properly The options available for this file format work as expected Manual Desktop Team


This section should contain links for builds with the feature:

The feature is available on Firefox 51 starting with 2016-08-23.

  • Links for Nightly builds - available since 23-08-2016 link

Test Execution Schedule

The following table identifies the anticipated testing period available for test execution.

Project phase Start Date End Date
Start project 2016-08-23 TBA
Study documentation/specs received from developers 2016-09-15 2016-09-16
QA - Test plan creation 2016-09-16 2016-09-16
QA - Test cases/Env preparation 2016-09-19 2016-09-23
QA - Nightly Testing 2016-09-22 2016-09-23
QA - Aurora Testing 2016-10-11 2016-10-12
QA - Beta Testing 2017-01-11 2017-01-12
Release Date tba

Testing Tools

Detail the tools to be used for testing, for example see the following table:

Process Tool
Test plan creation Mozilla wiki
Test case creation Google docs/ Test Rail
Test case execution TestRail
Bugs management Bugzilla


First released in Nightly in 08-23-2016 starting with build]
Track the dates and build number where feature was merged to Aurora
Track the dates and build number where feature was merged to Release/Beta

Risk analysis

  • Identify the high-risk assumptions.
  • Identify existing bugs on the feature with high risk.
  • Identify if other areas are affected by the fix.
  • List and links for specs


Test cases can be found also on TestRail at: [TBA link]

Test Areas Covered Details
Private Window Yes
Multi-Process Enabled Yes
Multi-process Disabled Yes
Mouse-only operation Yes
Keyboard-only operation Yes
Display (HiDPI) Yes
Interraction (scroll, zoom) Yes
Usability and/or discoverability testing Yes Is this feature user friendly
Does this affect partner builds? Partner build testing Yes yes/no options, add comment with details about who will lead testing
Web Compatibility depends on the feature
Testing against target sites Yes
Survey of many sites for compatibility Yes
Interoperability depends on the feature
Common protocol/data format with other software: specification available. Interop testing with other common clients or servers. Yes
Coordinated testing/interop across the Firefox products: Desktop, Android, iOS
Interaction of this feature with other browser features Yes

Test suite

FLAC support for Firefox - Sign off (Fx51) testsuite in [1] (need Testrail account)

Bug Work

Tracking bug – meta bug 1195723

Bug fix verification

Bugzilla query error

error, http-bad-status, Array

Logged bugs
Full Query
ID Summary Status Resolution
1305029 [FLAC sample] The audio progress bar skips final seconds NEW

1 Total; 1 Open (100%); 0 Resolved (0%); 0 Verified (0%);


Check list

  • All test cases should be executed
SignOff Criteria - Small feature
Nightly to Aurora Open Bugs Severity Number of Open Bugs
Blocker 0
Critical 2
Major 4
Normal 12
Minor+Enh 15


Nightly testing

List of OSes that will be covered by testing

  • Link for the tests run
    • Full Test suite if testcase ca be found on TestRail at link

Merge to Aurora Sign-off List of OSes that will be covered by testing

  • Link for the tests run
    • Full Test suite


Exit Criteria Status Notes/Details
Testing Prerequisites (specs, use cases) [DONE]
Testing Infrastructure setup [DONE]
Test Plan Creation [DONE]
Test Cases Creation [DONE]
Full Functional Tests Execution [DONE]
Automation Coverage TBD
Performance Testing N/A
All Defects Logged [DONE]
Critical/Blockers Fixed and Verified [DONE]
Metrics/Telemetry N/A
QA Signoff - Nightly Release [DONE] (Green) Sign off email sent on September 23
QA Aurora - Full Testing [DONE] (Green) Sign off email sent on October 12
QA Signoff - Aurora Release [DONE] (Green) Sign off email sent on November 11
QA Beta - Full Testing [DONE]
QA Signoff - Beta Release [DONE] (Green) Sign off email sent on January 12