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+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=377947
+-->
+<head>
+ <title>Test for Bug 377947</title>
+ <script src="/tests/SimpleTest/SimpleTest.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=377947">Mozilla Bug 377947</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+<script class="testbody" type="text/javascript">
+
+/** Test for Bug 377947 **/
+
+/*
+ * In particular, test that CSSStyleDeclaration.getPropertyValue doesn't
+ * return values for shorthands when some of the subproperties are not
+ * specified (a change that wasn't all that related to the main point of
+ * the bug). And also test that the internal system-font property added
+ * in bug 377947 doesn't interfere with that.
+ */
+
+var s = document.getElementById("display").style;
+
+is(s.getPropertyValue("list-style"), "",
+ "list-style shorthand should start off empty");
+s.listStyleType="disc";
+s.listStyleImage="none";
+is(s.getPropertyValue("list-style"), "",
+ "list-style shorthand should be empty when some subproperties specified");
+s.listStylePosition="inside";
+isnot(s.getPropertyValue("list-style"), "",
+ "list-style shorthand should produce value when all subproperties set");
+s.removeProperty("list-style");
+is(s.getPropertyValue("list-style"), "",
+ "list-style shorthand be empty after removal");
+s.listStyle="none";
+isnot(s.getPropertyValue("list-style"), "",
+ "list-style shorthand should produce value when shorthand set");
+s.removeProperty("list-style");
+is(s.getPropertyValue("list-style"), "",
+ "list-style shorthand be empty after removal");
+
+is(s.getPropertyValue("font"), "",
+ "font shorthand should start off empty");
+var all_but_one = {
+ "font-family": "serif",
+ "font-style": "normal",
+ "font-variant": "normal",
+ "font-weight": "bold",
+ "font-size": "small",
+ "font-stretch": "normal",
+ "font-size-adjust": "none", // has to be default value
+ "font-feature-settings": "normal", // has to be default value
+ "font-variation-settings": "normal", // has to be default value
+ "font-language-override": "normal", // has to be default value
+ "font-kerning": "auto", // has to be default value
+ "font-optical-sizing": "auto", // has to be default value
+ "font-synthesis": "weight style", // has to be default value
+ "font-variant-alternates": "normal", // has to be default value
+ "font-variant-caps": "normal", // has to be default value
+ "font-variant-east-asian": "normal", // has to be default value
+ "font-variant-emoji": "auto", // has to be default value
+ "font-variant-ligatures": "normal", // has to be default value
+ "font-variant-numeric": "normal", // has to be default value
+ "font-variant-position": "normal" // has to be default value
+};
+
+for (var prop in all_but_one) {
+ s.setProperty(prop, all_but_one[prop], "");
+}
+is(s.getPropertyValue("font"), "",
+ "font shorthand should be empty when some subproperties specified");
+s.setProperty("line-height", "1.5", "");
+isnot(s.getPropertyValue("font"), "",
+ "font shorthand should produce value when all subproperties set");
+s.setProperty("font-size-adjust", "0.5", "");
+is(s.getPropertyValue("font"), "",
+ "font shorthand should be empty when font-size-adjust is non-default");
+s.setProperty("font-size-adjust", "none", "");
+isnot(s.getPropertyValue("font"), "",
+ "font shorthand should produce value when all subproperties set");
+s.removeProperty("font");
+is(s.getPropertyValue("font"), "",
+ "font shorthand be empty after removal");
+s.font="medium serif";
+isnot(s.getPropertyValue("font"), "",
+ "font shorthand should produce value when shorthand set");
+s.removeProperty("font");
+is(s.getPropertyValue("font"), "",
+ "font shorthand be empty after removal");
+s.font="menu";
+isnot(s.getPropertyValue("font"), "",
+ "font shorthand should produce value when shorthand (system font) set");
+s.removeProperty("font");
+is(s.getPropertyValue("font"), "",
+ "font shorthand be empty after removal");
+
+</script>
+</pre>
+</body>
+</html>
+