From 43a97878ce14b72f0981164f87f2e35e14151312 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 11:22:09 +0200
Subject: Adding upstream version 110.0.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../tests/css/mediaqueries/relative-units-005.html | 29 ++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 testing/web-platform/tests/css/mediaqueries/relative-units-005.html

(limited to 'testing/web-platform/tests/css/mediaqueries/relative-units-005.html')
diff --git a/testing/web-platform/tests/css/mediaqueries/relative-units-005.html b/testing/web-platform/tests/css/mediaqueries/relative-units-005.html
new file mode 100644
index 0000000000..8b344743df
--- /dev/null
+++ b/testing/web-platform/tests/css/mediaqueries/relative-units-005.html
@@ -0,0 +1,29 @@
+<!doctype html>
+<title>CSS Media Queries Test: ex, ch, and ic from initial font</title>
+<link rel="help" href="https://drafts.csswg.org/mediaqueries/#units">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="ex_ref" style="width: 100ex"></div>
+<div id="ch_ref" style="width: 100ch"></div>
+<div id="ic_ref" style="width: 100ic"></div>
+<script>
+  const viewport_width = document.documentElement.offsetWidth;
+
+  test(() => {
+    const viewport_ex = (viewport_width * 100) / ex_ref.offsetWidth;
+    const ex_query = `(min-width: ${viewport_ex-0.5}ex) and (max-width: ${viewport_ex+0.5}ex)`;
+    assert_true(matchMedia(ex_query).matches);
+  }, "ex unit in media queries should match initial font");
+
+  test(() => {
+    const viewport_ch = (viewport_width * 100) / ch_ref.offsetWidth;
+    const ch_query = `(min-width: ${viewport_ch-0.5}ch) and (max-width: ${viewport_ch+0.5}ch)`;
+    assert_true(matchMedia(ch_query).matches);
+  }, "ch unit in media queries should match initial font");
+
+  test(() => {
+    const viewport_ic = (viewport_width * 100) / ic_ref.offsetWidth;
+    const ic_query = `(min-width: ${viewport_ic-0.5}ic) and (max-width: ${viewport_ic+0.5}ic)`;
+    assert_true(matchMedia(ic_query).matches);
+  }, "ic unit in media queries should match initial font");
+</script>
-- 
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