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diff --git a/testing/web-platform/tests/html/canvas/element/text/2d.text.measure.fontBoundingBox.ahem.html b/testing/web-platform/tests/html/canvas/element/text/2d.text.measure.fontBoundingBox.ahem.html
new file mode 100644
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+++ b/testing/web-platform/tests/html/canvas/element/text/2d.text.measure.fontBoundingBox.ahem.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>Canvas test: 2d.text.measure.fontBoundingBox.ahem</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+<link rel="stylesheet" href="/html/canvas/resources/canvas-tests.css">
+<style>
+@font-face {
+  font-family: Ahem;
+  src: url("/fonts/Ahem.ttf");
+}
+</style>
+<body class="show_output">
+
+<h1>2d.text.measure.fontBoundingBox.ahem</h1>
+<p class="desc">Testing fontBoundingBox for font ahem</p>
+
+
+<span style="font-family: Ahem; position: absolute; visibility: hidden">A</span>
+<p class="output">Actual output:</p>
+<canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
+
+<ul id="d"></ul>
+<script>
+promise_test(async t => {
+
+  var canvas = document.getElementById('c');
+  var ctx = canvas.getContext('2d');
+
+  await document.fonts.ready;
+  ctx.font = '50px Ahem';
+  ctx.direction = 'ltr';
+  ctx.align = 'left'
+  _assertSame(ctx.measureText('A').fontBoundingBoxAscent, 40, "ctx.measureText('A').fontBoundingBoxAscent", "40");
+  _assertSame(ctx.measureText('A').fontBoundingBoxDescent, 10, "ctx.measureText('A').fontBoundingBoxDescent", "10");
+  _assertSame(ctx.measureText('ABCD').fontBoundingBoxAscent, 40, "ctx.measureText('ABCD').fontBoundingBoxAscent", "40");
+  _assertSame(ctx.measureText('ABCD').fontBoundingBoxDescent, 10, "ctx.measureText('ABCD').fontBoundingBoxDescent", "10");
+
+}, "Testing fontBoundingBox for font ahem");
+</script>
+