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Bug 1025436 - Gtest for flinging into overscroll. r=kats

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--HG--
extra : rebase_source : 04f121408c43826ac67e71acb229cfcaad137c3e
This commit is contained in:
Botond Ballo 2014-08-20 14:28:41 -04:00
parent 1cb2fe067b
commit a5d3348b87
1 changed files with 28 additions and 0 deletions
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28
gfx/tests/gtest/TestAsyncPanZoomController.cpp
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@ -909,6 +909,34 @@ TEST_F(APZCBasicTester, Fling) {
}
}
TEST_F(APZCBasicTester, FlingIntoOverscroll) {
// Enable overscrolling.
SCOPED_GFX_PREF(APZOverscrollEnabled, bool, true);
// Scroll down by 25 px. Don't fling for simplicity.
int time = 0;
ApzcPanNoFling(apzc, time, 50, 25);
// Now scroll back up by 20px, this time flinging after.
// The fling should cover the remaining 5 px of room to scroll, then
// go into overscroll, and finally snap-back to recover from overscroll.
ApzcPan(apzc, time, 25, 45);
const TimeDuration increment = TimeDuration::FromMilliseconds(1);
bool reachedOverscroll = false;
bool recoveredFromOverscroll = false;
while (apzc->AdvanceAnimations(testStartTime)) {
if (!reachedOverscroll && apzc->IsOverscrolled()) {
reachedOverscroll = true;
}
if (reachedOverscroll && !apzc->IsOverscrolled()) {
recoveredFromOverscroll = true;
}
testStartTime += increment;
}
EXPECT_TRUE(reachedOverscroll);
EXPECT_TRUE(recoveredFromOverscroll);
}
class APZCFlingStopTester : public APZCGestureDetectorTester {
protected:
// Start a fling, and then tap while the fling is ongoing. When