1 files changed, 64 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/semantics/permission-element/bounded-css-properties.tentative.html b/testing/web-platform/tests/html/semantics/permission-element/bounded-css-properties.tentative.html
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index 0000000000..c0f0fe3454
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+++ b/testing/web-platform/tests/html/semantics/permission-element/bounded-css-properties.tentative.html
@@ -0,0 +1,64 @@
+<!DOCTYPE html>
+<meta charset=utf-8>
+<link rel="help" href="https://github.com/WICG/PEPC/blob/main/explainer.md#locking-the-pepc-style">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<body>
+<!--The permission element should have some limits for specific properties:
+  * font-weight is adjusted to be at least 200.
+  * font-style should only have "normal" or "italic" values.
+  * word-spacing should be at most 0.5 of the font size, and non-negative.
+  * letter-spacing should be between -0.05 and 0.2 of the font size.
+-->
+<style>
+  #id-over-bounds {
+    font-weight: 100;
+    font-style: oblique 30deg;
+    word-spacing: 1em;
+    font-size: 100px;
+    letter-spacing: 21px;
+  }
+  #id-under-bounds {
+    word-spacing: -1px;
+    font-size: 100px;
+    letter-spacing: -6px;
+  }
+  #id-within-bounds {
+    font-weight: 300;
+    font-style: italic;
+    word-spacing: 0.4em;
+    font-size: 100px;
+    letter-spacing: 15px;
+  }
+</style>
+
+
+<permission id="id-over-bounds" type="geolocation">
+<permission id="id-under-bounds" type="camera">
+<permission id="id-within-bounds" type="microphone">
+
+<script>
+  test(function(){
+    var el = document.getElementById("id-over-bounds");
+    assert_equals(getComputedStyle(el).fontWeight, "200", "font-weight");
+    assert_equals(getComputedStyle(el).fontStyle, "normal", "font-style");
+    assert_equals(getComputedStyle(el).wordSpacing, "50px", "word-spacing");
+    assert_equals(getComputedStyle(el).letterSpacing, "20px", "letter-spacing");
+
+    el = document.getElementById("id-under-bounds");
+    assert_equals(getComputedStyle(el).wordSpacing, "0px", "word-spacing, negative");
+    assert_equals(getComputedStyle(el).letterSpacing, "-5px", "letter-spacing, negative");
+  }, "Properties with out-of-bounds values should be corrected");
+
+  test(function(){
+    var el = document.getElementById("id-within-bounds");
+    assert_equals(getComputedStyle(el).fontWeight, "300", "font-weight");
+    assert_equals(getComputedStyle(el).fontStyle, "italic", "font-style");
+    assert_equals(getComputedStyle(el).wordSpacing, "40px", "word-spacing");
+    assert_equals(getComputedStyle(el).letterSpacing, "15px", "letter-spacing");
+
+    el.style.letterSpacing = "-4px";
+    assert_equals(getComputedStyle(el).letterSpacing, "-4px", "letter-spacing, negative");
+  }, "Properties with values in bounds should not be modified");
+</script>
+</body>
+\ No newline at end of file