1323161 - [PointerEvents][web-platform-tests] Fail to get expect result status when running "pointerevent_suppress_compat_events_on_drag_mouse-manual"

Status: RESOLVED DUPLICATE of bug 1323158

(Core :: DOM: Events, defect, P3)

Description

[Cynthia Tang [:cynthiatang]]

Test Description: 
When a pointerdown is canceled, a mouse drag shouldn't fire any compatibility mouse events.

Steps to reproduce:
 1. Launch Firefox with Pointer Events
 2. Go to http://w3c-test.org/pointerevents/pointerevent_suppress_compat_events_on_drag_mouse-manual.html
 3. Start the manual
    (1) Drag mouse within Target0 & release.
    (2) Drag mouse within Target1 & release.
    (3) Click Done.

Expected result:
 - Return result status is "PASS".

Actual result:
 - 3 PASS
 - 1 FAIL
   - Test Name: Event log
   - Error Message: 
     assert_equals: expected ""mousedown@target1, mousemove@target1, mouseup@target1"" but got ""mousedown@target0, mousemove@target0, mouseup@target0, mousedown@target1, mousemove@target1, mouseup@target1""
     end_of_interaction/<@http://w3c-test.org/pointerevents/pointerevent_suppress_compat_events_on_drag_mouse-manual.html:33:15 
     Test.prototype.step@http://w3c-test.org/resources/testharness.js:1406:20 
     test@http://w3c-test.org/resources/testharness.js:501:9 
     end_of_interaction@http://w3c-test.org/pointerevents/pointerevent_suppress_compat_events_on_drag_mouse-manual.html:32:11 
     EventListener.handleEvent*on_event@http://w3c-test.org/resources/testharness.js:665:9 
     run@http://w3c-test.org/pointerevents/pointerevent_suppress_compat_events_on_drag_mouse-manual.html:41:11 
     onload@http://w3c-test.org/pointerevents/pointerevent_suppress_compat_events_on_drag_mouse-manual.html:1:1 

Environment:
 - Devices: Surface 3
 - OS: Windows 10 Pro. (64-bit)
 - Firefox: 53.0a1 (2016-11-30) (64-bit)