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Diffstat (limited to 'testing/web-platform/tests/mathml/presentation-markup/operators/embellished-operator-dynamic-002.html')
| -rw-r--r-- | testing/web-platform/tests/mathml/presentation-markup/operators/embellished-operator-dynamic-002.html | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/testing/web-platform/tests/mathml/presentation-markup/operators/embellished-operator-dynamic-002.html b/testing/web-platform/tests/mathml/presentation-markup/operators/embellished-operator-dynamic-002.html new file mode 100644 index 0000000000..2c52684765 --- /dev/null +++ b/testing/web-platform/tests/mathml/presentation-markup/operators/embellished-operator-dynamic-002.html @@ -0,0 +1,185 @@ +<!DOCTYPE html> +<html> +<head> +<meta charset="utf-8"> +<title>Embellished operators - tree change and relayout</title> +<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" /> +<link rel="help" href="https://w3c.github.io/mathml-core/#embellished-operators"> +<link rel="help" href="https://w3c.github.io/mathml-core/#definition-of-space-like-elements"> +<link rel="help" href="https://w3c.github.io/mathml-core/#layout-of-mrow"> +<link rel="help" href="https://chromium-review.googlesource.com/c/chromium/src/+/3059456"> +<meta name="assert" content="Verify relayout of an mrow with a child that has a deeply nested <mo> element."> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="/mathml/support/mathml-fragments.js"></script> +<script src="/mathml/support/fonts.js"></script> +<style> + math, math * { + font: 25px/1 Ahem; + } + mn { + color: black; + } + .relative_positioned_and_fixed_size { + position: relative; + height: 0px; + width: 0px; + overflow: scroll; + } +</style> +<script> + setup({ explicit_done: true }); + window.addEventListener("load", () => { loadAllFonts().then(runTests); }); + + function runTests() { + var epsilon = 1; + var emToPx = 25; + + function assertCorrectSpacing(container, + zero_size_mrow_is_embellished_op) { + // The container should add lspace/rspace around the zero size mrow + // if and only if that mrow is an embellished operator. + let mnBefore = container.children[0].getBoundingClientRect(); + let zeroSizeMrow = container.children[1].getBoundingClientRect(); + let mnAfter = container.children[2].getBoundingClientRect(); + assert_approx_equals(zeroSizeMrow.left - mnBefore.right, + zero_size_mrow_is_embellished_op ? + emToPx * 1 : 0, epsilon, + "lspace"); + assert_approx_equals(mnAfter.left - zeroSizeMrow.right, + zero_size_mrow_is_embellished_op ? + emToPx * 2 : 0, epsilon, + "rspace"); + } + + let container1 = document.getElementById("container1"); + test(function() { + assertCorrectSpacing(container1, true); + }, "container1: Initially an embellished operator"); + + let container2 = document.getElementById("container2"); + test(function() { + assertCorrectSpacing(container2, false); + }, "container2: Initially not an embellished operator"); + + test(function() { + let mrow1 = document.getElementById("change_to_not_embellished_operator"); + mrow1.appendChild(FragmentHelper.createElement("mn")); + assertCorrectSpacing(container1, false); + }, " container1: No longer an embellished operator"); + + test(function() { + let mrow2 = document.getElementById("change_to_embellished_operator"); + mrow2.removeChild(mrow2.lastElementChild); + assertCorrectSpacing(container2, true); + }, "container2: Became an embellished operator"); + + let container3 = document.getElementById("container3"); + test(function() { + assertCorrectSpacing(container3, true); + }, "container3: Initially an embellished operator (testing space-like)"); + + let container4 = document.getElementById("container4"); + test(function() { + assertCorrectSpacing(container4, false); + }, "container4/space-like: Initially not an embellished operator (testing space-like)"); + + test(function() { + let mrow = document.getElementById("change_to_not_space_like"); + mrow.appendChild(FragmentHelper.createElement("mn")); + assertCorrectSpacing(container3, false); + }, " container3: No longer an embellished operator (testing space-like)"); + + test(function() { + let mrow = document.getElementById("change_to_space_like"); + mrow.removeChild(mrow.lastElementChild); + assertCorrectSpacing(container4, true); + }, "container4: Became an embellished operator (testing space-like)"); + + done(); + } +</script> +</head> +<body> + <div id="log"></div> + + <div> + <math display="block"> + <mrow id="container1"> + <mn>1</mn> + <mrow class="relative_positioned_and_fixed_size"> + <mrow id="change_to_not_embellished_operator"> + <mrow> + <mo lspace="1em" rspace="2em"></mo> + </mrow> + </mrow> + </mrow> + <mn>2</mn> + </mrow> + </math> + </div> + + <div> + <math display="block"> + <mrow id="container2"> + <mn>3</mn> + <mrow class="relative_positioned_and_fixed_size"> + <mrow id="change_to_embellished_operator"> + <mrow> + <mo lspace="1em" rspace="2em"></mo> + </mrow> + <mn></mn> + </mrow> + </mrow> + <mn>4</mn> + </mrow> + </math> + </div> + + <div> + <math display="block"> + <mrow id="container3"> + <mn>5</mn> + <mrow> + <mrow> + <mrow> + <mo lspace="1em" rspace="2em"></mo> + </mrow> + <mrow class="relative_positioned_and_fixed_size"> + <mrow id="change_to_not_space_like"> + <mspace></mspace> + <mtext></mtext> + </mrow> + </mrow> + </mrow> + </mrow> + <mn>6</mn> + </mrow> + </math> + </div> + + <div> + <math display="block"> + <mrow id="container4"> + <mn>7</mn> + <mrow> + <mrow> + <mrow> + <mo lspace="1em" rspace="2em"></mo> + </mrow> + <mrow class="relative_positioned_and_fixed_size"> + <mrow id="change_to_space_like"> + <mspace></mspace> + <mtext></mtext> + <mn></mn> + </mrow> + </mrow> + </mrow> + </mrow> + <mn>8</mn> + </mrow> + </math> + </div> + +</body> +</html> |