| <!DOCTYPE html> |
| <script src="../../../resources/testharness.js"></script> |
| <script src="../../../resources/testharnessreport.js"></script> |
| <style> |
| #i1 ~ #i3 { color: red } |
| </style> |
| <div id="sandbox"> |
| <div id="i1"></div> |
| <div id="i2"></div> |
| <div></div> |
| <div></div> |
| <div id="i3">This text should not be red.</div> |
| </div> |
| <script> |
| test(() => { |
| assert_true(!!window.internals, "This test only works with internals exposed"); |
| }, "internals are exposed"); |
| |
| test(() => { |
| assert_equals(getComputedStyle(i3).color, "rgb(255, 0, 0)", "#i3 color should be red"); |
| }, "#i3 red before mutations"); |
| |
| |
| test(() => { |
| sandbox.offsetTop; // Force clean style/layout. |
| sandbox.removeChild(i1); |
| sandbox.removeChild(i2); |
| assert_equals(internals.updateStyleAndReturnAffectedElementCount(), 1, "#i3 should have had its style recalculated"); |
| }, "#i3 recalculated"); |
| |
| test(() => { |
| assert_equals(getComputedStyle(i3).color, "rgb(0, 0, 0)", "#i3 color should not be red"); |
| }, "#i3 not red after mutations"); |
| </script> |
