218910 2020-11-13 09:49:10 -0800 Value of animation at time 0 does not match Firefox (or WPT test expectations) for color accumulate composite test 2022-09-12 07:12:27 -0700 1 1 1 Unclassified WebKit Animations WebKit Nightly Build Unspecified Unspecified RESOLVED CONFIGURATION CHANGED InRadar P2 Normal --- 189299 1 sam webkit-unassigned ahmad.saleem792 ap bfulgham dino graouts webkit-bug-importer oldest_to_newest 1707286 0 414056 sam 2020-11-13 09:49:10 -0800 Created attachment 414056 Reduced Test Case The value of animation at time 0 does not match Firefox (or WPT test expectations) for color accumulate composite test. Reduced test case attached. ` target.style[idlName] = 'rgb(128, 128, 128)'; const animation = target.animate({ [idlName]: ['rgb(255, 0, 0)', 'rgb(0, 0, 255)'] }, { duration: 1000, composite: 'accumulate' }); testAnimationSamples(animation, idlName, [{ time: 0, expected: 'rgb(255, 128, 128)' }]); ` This reduction was extracted from http://wpt.live/web-animations/animation-model/animation-types/accumulation-per-property-002.html 1709520 1 webkit-bug-importer 2020-11-20 09:50:15 -0800 <rdar://problem/71631573> 1709742 2 graouts 2020-11-21 00:38:47 -0800 Since we don't support composite operations (bug 189299), I expect instead of accumulating over the base value we are replacing it entirely. 1895921 3 ahmad.saleem792 2022-09-02 16:15:11 -0700 Attached test case show following for all browsers (Chrome Canary 107, Firefox Nightly 106 and Safari Technology Preview 152): PASS The value should be rgb(255, 128, 128) at 0ms The value is rgb(255, 128, 128) at 0ms Is anything else needed here? WPT Live link test still has 20 failures in STP 152, 1 in Firefox Nightly 106 and 12 in Chrome Canary 107. 1897850 4 graouts 2022-09-12 07:12:27 -0700 Yes, since composite operations are now supported, this particular issue seems addressed. 414056 2020-11-13 09:49:10 -0800 2020-11-13 09:49:10 -0800 Reduced Test Case testcase.html text/html 1117 sam PHByZSBpZD0ibG9nIj48L3ByZT4KPHNjcmlwdD4KICAndXNlIHN0cmljdCc7CiAgCiAgZnVuY3Rp b24gbG9nKG1zZykgewogICAgZG9jdW1lbnQuZ2V0RWxlbWVudEJ5SWQoImxvZyIpLmFwcGVuZCht c2cgKyAiXG4iKTsKICB9CgogIGZ1bmN0aW9uIHRlc3RBbmltYXRpb25TYW1wbGVzKGFuaW1hdGlv biwgaWRsTmFtZSwgdGVzdFNhbXBsZXMpIHsKICAgIGNvbnN0IHBzZXVkb1R5cGUgPSBhbmltYXRp b24uZWZmZWN0LnBzZXVkb0VsZW1lbnQ7CiAgICBjb25zdCB0YXJnZXQgPSBhbmltYXRpb24uZWZm ZWN0LnRhcmdldDsKICAgIGZvciAoY29uc3QgdGVzdFNhbXBsZSBvZiB0ZXN0U2FtcGxlcykgewog ICAgICBhbmltYXRpb24uY3VycmVudFRpbWUgPSB0ZXN0U2FtcGxlLnRpbWU7CiAgICAgIGNvbnN0 IHJlc3VsdCA9IGdldENvbXB1dGVkU3R5bGUodGFyZ2V0LCBwc2V1ZG9UeXBlKVtpZGxOYW1lXTsK ICAgICAgaWYgKHJlc3VsdCA9PSB0ZXN0U2FtcGxlLmV4cGVjdGVkKSB7CiAgICAgICAgbG9nKCJQ QVNTIik7CiAgICAgIH0gZWxzZSB7CiAgICAgICAgbG9nKCJGQUlMIik7CiAgICAgIH0KICAgICAg bG9nKGBUaGUgdmFsdWUgc2hvdWxkIGJlICR7dGVzdFNhbXBsZS5leHBlY3RlZH0gYXQgJHt0ZXN0 U2FtcGxlLnRpbWV9bXNgKTsKICAgICAgbG9nKGBUaGUgdmFsdWUgaXMgJHtyZXN1bHR9IGF0ICR7 dGVzdFNhbXBsZS50aW1lfW1zYCk7CiAgICB9CiAgfQoKCiAgY29uc3QgdGFyZ2V0ID0gZG9jdW1l bnQuY3JlYXRlRWxlbWVudCgnZGl2Jyk7CiAgZG9jdW1lbnQuYm9keS5hcHBlbmRDaGlsZCh0YXJn ZXQpOwogIGNvbnN0IGlkbE5hbWUgPSAiY29sb3IiOwogIAogIHRhcmdldC5zdHlsZVtpZGxOYW1l XSA9ICdyZ2IoMTI4LCAxMjgsIDEyOCknOwogIGNvbnN0IGFuaW1hdGlvbiA9IHRhcmdldC5hbmlt YXRlKHsgW2lkbE5hbWVdOiBbJ3JnYigyNTUsIDAsIDApJywgJ3JnYigwLCAwLCAyNTUpJ10gfSwg eyBkdXJhdGlvbjogMTAwMCwgY29tcG9zaXRlOiAnYWNjdW11bGF0ZScgfSk7CiAgdGVzdEFuaW1h dGlvblNhbXBsZXMoYW5pbWF0aW9uLCBpZGxOYW1lLCBbeyB0aW1lOiAwLCAgZXhwZWN0ZWQ6ICdy Z2IoMjU1LCAxMjgsIDEyOCknIH1dKTsKPC9zY3JpcHQ+Cg==