Make the reset test in test_transitions.html deal with the possibility of massive skew between setTimeout and the clock. (Bug 539904)

This commit is contained in:
L. David Baron 2010-04-07 12:06:15 -07:00
parent 68e64fb097
commit 3b67d5db4a

View File

@ -202,15 +202,20 @@ for (var d = -4; d <= 4; ++d) {
// Test that changing the value on an already-running transition to the
// value it currently happens to have resets the transition.
var p = document.createElement("p");
var t = document.createTextNode("transition-delay reset to starting point");
p.appendChild(t);
p.style.marginLeft = "0px";
p.style.MozTransition = "4s margin-left ease-out 4s";
div.appendChild(p);
is(getComputedStyle(p, "").marginLeft, "0px",
"should be zero before changing value");
var reset_test = p;
function make_reset_test(transition, description)
{
var p = document.createElement("p");
var t = document.createTextNode(description);
p.appendChild(t);
p.style.marginLeft = "0px";
p.style.MozTransition = transition;
div.appendChild(p);
is(getComputedStyle(p, "").marginLeft, "0px",
"should be zero before changing value");
return p;
}
var reset_test = make_reset_test("4s margin-left ease-out 4s", "transition-delay reset to starting point");
var reset_test_reference = make_reset_test("4s margin-left linear -3s", "reference for previous test (reset test)");
// Test that transitions on descendants do not trigger when the
// inherited value is itself transitioning. In other words, when
@ -361,6 +366,7 @@ for (var d in delay_tests) {
p.style.marginLeft = "100px";
}
reset_test.style.marginLeft = "100px";
reset_test_reference.style.marginLeft = "100px";
for (var i in descendant_tests) {
var test = descendant_tests[i];
test.parentNode.style.textIndent = "150px";
@ -541,7 +547,13 @@ function check_reset_test(time)
is(getComputedStyle(reset_test, "").marginLeft, "0px",
"reset test value at time " + time + "s.");
}
setTimeout(reset_reset_test, 1000); // must always run, even if late
check_reset_test(0);
// reset the reset test right now so we don't have to worry about clock skew
// To make sure that this is valid, check that a pretty-much-identical test is
// already transitioning.
is(getComputedStyle(reset_test_reference, "").marginLeft, "75px",
"reset test reference value");
reset_reset_test();
check_reset_test(0);
for (var i = 1; i <= 8; ++i) {
(function(j) {