diff options
Diffstat (limited to 'dom/base/test/test_intersectionobservers.html')
| -rw-r--r-- | dom/base/test/test_intersectionobservers.html | 59 |
1 files changed, 39 insertions, 20 deletions
diff --git a/dom/base/test/test_intersectionobservers.html b/dom/base/test/test_intersectionobservers.html index e7875e3af0..10e3d77129 100644 --- a/dom/base/test/test_intersectionobservers.html +++ b/dom/base/test/test_intersectionobservers.html @@ -325,7 +325,7 @@ limitations under the License. }); - it('does not trigger if target does not intersect when observing begins', + it('does trigger if target does not intersect when observing begins', function(done) { var spy = sinon.spy(); @@ -334,7 +334,7 @@ limitations under the License. targetEl2.style.top = '-40px'; io.observe(targetEl2); callDelayed(function() { - expect(spy.callCount).to.be(0); + expect(spy.callCount).to.be(1); done(); }, ASYNC_TIMEOUT); }); @@ -528,7 +528,7 @@ limitations under the License. spy.waitForNotification(function() { expect(spy.callCount).to.be(1); var records = sortRecords(spy.lastCall.args[0]); - expect(records.length).to.be(2); + expect(records.length).to.be(3); expect(records[0].target).to.be(targetEl1); expect(records[0].intersectionRatio).to.be(0.25); expect(records[1].target).to.be(targetEl2); @@ -636,10 +636,10 @@ limitations under the License. expect(records.length).to.be(3); expect(records[0].target).to.be(targetEl1); expect(records[0].intersectionRatio).to.be(0.5); - expect(records[1].target).to.be(targetEl3); - expect(records[1].intersectionRatio).to.be(0.5); - expect(records[2].target).to.be(targetEl4); + expect(records[2].target).to.be(targetEl3); expect(records[2].intersectionRatio).to.be(0.5); + expect(records[3].target).to.be(targetEl4); + expect(records[3].intersectionRatio).to.be(0.5); io.disconnect(); done(); }, {root: rootEl, rootMargin: '-10px 10%'}); @@ -652,11 +652,11 @@ limitations under the License. function(done) { io = new IntersectionObserver(function(records) { records = sortRecords(records); - expect(records.length).to.be(2); + expect(records.length).to.be(4); expect(records[0].target).to.be(targetEl1); expect(records[0].intersectionRatio).to.be(0.5); - expect(records[1].target).to.be(targetEl4); - expect(records[1].intersectionRatio).to.be(0.5); + expect(records[3].target).to.be(targetEl4); + expect(records[3].intersectionRatio).to.be(0.5); io.disconnect(); done(); }, {root: rootEl, rootMargin: '-5% -2.5% 0px'}); @@ -669,13 +669,13 @@ limitations under the License. function(done) { io = new IntersectionObserver(function(records) { records = sortRecords(records); - expect(records.length).to.be(3); + expect(records.length).to.be(4); expect(records[0].target).to.be(targetEl1); expect(records[0].intersectionRatio).to.be(0.5); expect(records[1].target).to.be(targetEl2); expect(records[1].intersectionRatio).to.be(0.5); - expect(records[2].target).to.be(targetEl4); - expect(records[2].intersectionRatio).to.be(0.25); + expect(records[3].target).to.be(targetEl4); + expect(records[3].intersectionRatio).to.be(0.25); io.disconnect(); done(); }, {root: rootEl, rootMargin: '5% -2.5% -10px -190px'}); @@ -705,9 +705,9 @@ limitations under the License. spy.waitForNotification(function() { expect(spy.callCount).to.be(1); var records = sortRecords(spy.lastCall.args[0]); - expect(records.length).to.be(1); - expect(records[0].intersectionRatio).to.be(0); - expect(records[0].target).to.be(targetEl2); + expect(records.length).to.be(2); + expect(records[1].intersectionRatio).to.be(0); + expect(records[1].target).to.be(targetEl2); done(); }, ASYNC_TIMEOUT); }, @@ -797,14 +797,14 @@ limitations under the License. function(done) { document.getElementById('fixtures').appendChild(rootEl); callDelayed(function() { - expect(spy.callCount).to.be(0); + expect(spy.callCount).to.be(1); done(); }, ASYNC_TIMEOUT); }, function(done) { parentEl.insertBefore(targetEl1, targetEl2); spy.waitForNotification(function() { - expect(spy.callCount).to.be(1); + expect(spy.callCount).to.be(2); var records = sortRecords(spy.lastCall.args[0]); expect(records.length).to.be(1); expect(records[0].intersectionRatio).to.be(1); @@ -815,7 +815,7 @@ limitations under the License. function(done) { grandParentEl.parentNode.removeChild(grandParentEl); spy.waitForNotification(function() { - expect(spy.callCount).to.be(2); + expect(spy.callCount).to.be(3); var records = sortRecords(spy.lastCall.args[0]); expect(records.length).to.be(1); expect(records[0].intersectionRatio).to.be(0); @@ -826,7 +826,7 @@ limitations under the License. function(done) { rootEl.appendChild(targetEl1); spy.waitForNotification(function() { - expect(spy.callCount).to.be(3); + expect(spy.callCount).to.be(4); var records = sortRecords(spy.lastCall.args[0]); expect(records.length).to.be(1); expect(records[0].intersectionRatio).to.be(1); @@ -837,7 +837,7 @@ limitations under the License. function(done) { rootEl.parentNode.removeChild(rootEl); spy.waitForNotification(function() { - expect(spy.callCount).to.be(4); + expect(spy.callCount).to.be(5); var records = sortRecords(spy.lastCall.args[0]); expect(records.length).to.be(1); expect(records[0].intersectionRatio).to.be(0); @@ -867,8 +867,14 @@ limitations under the License. targetEl1.style.top = '220px'; targetEl1.style.left = '220px'; + + var callCount = 0; io = new IntersectionObserver(function(records) { + callCount++; + if (callCount <= 1) { + return; + } expect(records.length).to.be(1); expect(records[0].intersectionRatio).to.be(1); done(); @@ -891,6 +897,19 @@ limitations under the License. var win = window.open("intersectionobserver_window.html"); }); + it('triggers only once if observed multiple times (and does not crash when collected)', function(done) { + var spy = sinon.spy(); + io = new IntersectionObserver(spy, {root: rootEl}); + io.observe(targetEl1); + io.observe(targetEl1); + io.observe(targetEl1); + + callDelayed(function () { + expect(spy.callCount).to.be(1); + done(); + }, ASYNC_TIMEOUT); + }); + }); describe('observe subframe', function () { |