Index: LayoutTests/fast/block/margin-collapse/bfc-beside-float-complex-margin-collapsing.html |
diff --git a/LayoutTests/fast/block/margin-collapse/bfc-beside-float-complex-margin-collapsing.html b/LayoutTests/fast/block/margin-collapse/bfc-beside-float-complex-margin-collapsing.html |
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index 0000000000000000000000000000000000000000..3194f1c8104288d0d10e9c843728325af23e878a |
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+++ b/LayoutTests/fast/block/margin-collapse/bfc-beside-float-complex-margin-collapsing.html |
@@ -0,0 +1,38 @@ |
+<!DOCTYPE html> |
+<script src="../../../resources/check-layout.js"></script> |
+<style> |
+ body { margin:8px; font-size:16px; } |
+</style> |
+<p>Given a float followed by a regular block with the same height as the float, then a block B with |
+ a negative margin, followed by a block with with overflow:hidden. Check that the |
+ overflow:hidden block doesn't overlap with the float, and also that it takes up all available |
+ space (but not more) beside the float. There's an empty collapse-through block before B, so |
+ that our initial logical top estimate fails and we have to relayout. When laying out again, we |
+ have to detect that the float that we first thought didn't affect the overflow:hidden block now |
+ affects it.</p> |
+<p>Below there should be an olive square to the left of a navy square. The navy square should be |
+ slightly larger than the olive one, and there should be spacing between them. They should not |
+ overlap.</p> |
+<div style="width:18em;"> |
+ <div> |
+ <div style="float:left; width:8em; height:8em; margin-right:1em; background:olive;"></div> |
+ <div style="height:8em;"></div> |
+ <div> |
+ <!-- Here's an empty block that we can just collapse through, but we don't realize that |
+ when calculating our initial top estimate on its parent, so we have to relayout |
+ when it turns out that a negative margin has pulled us upwards (and suddenly we |
+ have something block-level that's affected by the float). --> |
+ <div></div> |
+ |
+ <div style="margin-top:-8em;"></div> |
+ |
+ <!-- Here's a block-level element that is affected by floats, because it's a table. We |
+ could have used e.g. an overflow:hidden DIV for the same effect. --> |
+ <div id="bfc" style="overflow:hidden; height:9em; background:navy;" data-total-x="152" data-expected-width="144"></div> |
+ </div> |
+ </div> |
+</div> |
+<p id="result" style="clear:both;"></p> |
+<script> |
+ checkLayout("#bfc", document.getElementById("result")); |
+</script> |