Index: third_party/WebKit/LayoutTests/fragmentation/become-fragmented-same-widths.html |
diff --git a/third_party/WebKit/LayoutTests/fragmentation/become-fragmented-same-widths.html b/third_party/WebKit/LayoutTests/fragmentation/become-fragmented-same-widths.html |
new file mode 100644 |
index 0000000000000000000000000000000000000000..44c26562417e7eea55010a1a19ecfe92b028da84 |
--- /dev/null |
+++ b/third_party/WebKit/LayoutTests/fragmentation/become-fragmented-same-widths.html |
@@ -0,0 +1,27 @@ |
+<!DOCTYPE HTML> |
+<!-- A block with fixed width is 220px tall. When turning its container into a |
+ multicol container with a column height of 300px, we need to re-lay out the |
+ block, even if it would seem to fit in one column (220px < 300px). It |
+ contains a forced break. --> |
+<p>There should be a blue square below.</p> |
+<div id="multicol" style="position:relative; column-gap:0; column-fill:auto; width:100px; height:300px;"> |
+ <div style="width:50px;"> |
+ <div id="block1" style="height:100px; background:blue;"></div> |
+ <div style="height:20px;"></div> |
+ <div id="block2" style="break-before:column; height:100px; background:blue;"></div> |
+ </div> |
+</div> |
+<script src="../resources/testharness.js"></script> |
+<script src="../resources/testharnessreport.js"></script> |
+<script> |
+ test(() => { |
+ document.body.offsetTop; |
+ document.getElementById("multicol").style.columns = "2"; |
+ var block1 = document.getElementById("block1"); |
+ var block2 = document.getElementById("block2"); |
+ assert_equals(block1.offsetTop, 0); |
+ assert_equals(block1.offsetLeft, 0); |
+ assert_equals(block2.offsetTop, 0); |
+ assert_equals(block2.offsetLeft, 50); |
+ }, "Need relayout when becoming fragmented, even if width is the same."); |
+</script> |