Index: LayoutTests/fullscreen/rendering/ua-style-root.html |
diff --git a/LayoutTests/fullscreen/rendering/ua-style-root.html b/LayoutTests/fullscreen/rendering/ua-style-root.html |
new file mode 100644 |
index 0000000000000000000000000000000000000000..2a4e003bb2f7c1ea051ac186df6c5be78ea8c11e |
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+++ b/LayoutTests/fullscreen/rendering/ua-style-root.html |
@@ -0,0 +1,49 @@ |
+<!DOCTYPE html> |
+<title>Fullscreen UA style sheet does not apply to the :root element</title> |
+<script src="../../resources/testharness.js"></script> |
+<script src="../../resources/testharnessreport.js"></script> |
+<script src="../trusted-event.js"></script> |
+<style> |
+:root { |
+ /* The Fullscreen UA style sheet excludes :root from the size- and |
+ * position-related rules. To verify that none of them in fact apply, |
+ * override the properties which would otherwise (incidentally) match. */ |
+ margin: 10px; |
+ min-width: 50%; |
+ max-width: 50%; |
+ min-height: 50%; |
+ max-height: 50%; |
+ transform: translate(0, 0); |
+} |
+</style> |
+<div id="log"></div> |
+<script> |
+async_test(function() |
+{ |
+ var root = document.documentElement; |
+ assert_true(root.matches(":root")); |
+ |
+ document.addEventListener("fullscreenchange", this.step_func_done(function() |
+ { |
+ var style = getComputedStyle(root); |
+ // No properties should match the Fullscreen UA style sheet. |
+ assert_not_equals(style.position, "fixed"); |
+ assert_not_equals(style.top, "0px"); |
+ assert_not_equals(style.right, "0px"); |
+ assert_not_equals(style.bottom, "0px"); |
+ assert_not_equals(style.left, "0px"); |
+ assert_not_equals(style.margin, "0px"); |
+ assert_not_equals(style.boxSizing, "border-box"); |
+ assert_not_equals(style.minWidth, "0px"); |
+ assert_not_equals(style.maxWidth, "none"); |
+ assert_not_equals(style.minHeight, "0px"); |
+ assert_not_equals(style.maxHeight, "none"); |
+ assert_equals(style.width, window.innerWidth / 2 + "px"); |
+ assert_equals(style.height, window.innerHeight / 2 + "px"); |
+ assert_not_equals(style.objectFit, "contain"); |
+ assert_not_equals(style.transform, "none"); |
+ })); |
+ |
+ trusted_request(root, root); |
+}); |
+</script> |