[PE] Don't truncate table cell's padding

Truncation caused inadequate logical width when padding is like 1.7px. Bug: 817342 Change-Id: Ibdb76cc528cc7e04801fe65409bb8f60e5ac69a5 Reviewed-on: https://chromium-review.googlesource.com/943827 Commit-Queue: Xianzhu Wang <wangxianzhu@chromium.org> Reviewed-by: Morten Stenshorne <mstensho@chromium.org> Cr-Commit-Position: refs/heads/master@{#540991}
web-platform-tests · Mar 6, 2018 · 2de9c6c · 2de9c6c
1 parent 88f08cc
commit 2de9c6c
Showing 1 changed file with 52 additions and 0 deletions.
diff --git a/css/css-tables/width-distribution/td-with-subpixel-padding.html b/css/css-tables/width-distribution/td-with-subpixel-padding.html
@@ -0,0 +1,52 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+div {
+  display: inline-block;
+  width: 20px;
+  height: 20px;
+  background: blue;
+}
+</style>
+Passes if each row has two blue squares.
+<table>
+  <tr>
+    <td class='target' style="padding: 0 0.8px"><div></div> <div></div></td>
+    <td style="padding: 0 0.8px; width: 30px"></td>
+  </tr>
+</table>
+<table>
+  <tr>
+    <td class='target' style="padding: 0 1px"><div></div> <div></div></td>
+    <td style="padding: 0 1px; width: 30px"></td>
+  </tr>
+</table>
+<table>
+  <tr>
+    <td class='target' style="padding: 0 1.3px"><div></div> <div></div></td>
+    <td style="padding: 0 1.3px; width: 30px"></td>
+  </tr>
+</table>
+<table>
+  <tr>
+    <td class='target' style="padding: 0 1.5px"><div></div> <div></div></td>
+    <td style="padding: 0 1.5px; width: 30px"></td>
+  </tr>
+</table>
+<table>
+  <tr>
+    <td class='target' style="padding: 0 1.7px"><div></div> <div></div></td>
+    <td style="padding: 0 1.7px; width: 30px"></td>
+  </tr>
+</table>
+<script>
+test(() => {
+  var targets = document.getElementsByClassName('target');
+  for (var i = 0; i < targets.length; ++i) {
+    var divs = targets[i].getElementsByTagName('div');
+    assert_equals(divs.length, 2);
+    assert_equals(divs[0].offsetTop, divs[1].offsetTop, 'Contents of td.target[' + i + '] should not wrap');
+  }
+});
+</script>