QA/Firefox3.5/TestPlan/Script Defer

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Feature Script Defer Test Plan

Overview

Script defer is a feature that has been in IE and other browsers for years since the HTML 4 spec. Basically this is an attribute for the <script> tag where we can defer loading one or more scripts so the page content will load without waiting for large or cross-domain scripts.

Test Strategy

• defer loading of script and verify page loads
• queuing of local scripts
  • queue 2 scripts, 1 doesn't exist, other still loads
  • queue a script that references other scripts

• queuing of remote scripts
  • remote scripts will be deferred
  • mixed local/remote scripts will be deferred

• accessing variables / functions from deferred script
  • have inline script call function in deferred script
  • have inline script update variable in deferred script

test cases will be developed using mochitests

Schedule Scoping

• Landed in September
• Available in 3.1
• Many test cases included in bug
• Estimate 1 full day to develop and execute test cases

References

• [bug 28293]
• [WHATWG spec]