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<!DOCTYPE HTML>
<html>
<head>
<title>CSS Variables Allowed Syntax</title>
<link rel="author" title="L. David Baron" href="https://dbaron.org/">
<link rel="author" title="Mozilla Corporation" href="http://mozilla.com/" />
<meta name="assert" content="requirements in definition of insertRule">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style id="style">
@media print {}
</style>
<script id="metadata_cache">/*
{
"rule_type": {},
"rule_length": {},
"insert_import_throws": {},
"insert_index_throws1": {},
"insert_index_throws2": {},
"insert_media_succeed": {},
"insert_style_succeed": {},
"insert_bad_media_throw": {},
"insert_empty_throw": {},
"insert_garbage_after_media_throw": {},
"insert_garbage_after_style_throw": {},
"insert_two_media_throw": {},
"insert_style_media_throw": {},
"insert_media_style_throw": {},
"insert_two_style_throw": {},
"insert_retval": {}
}
*/</script>
</head>
<body onload="run()">
<div id=log></div>
<div id="test"></div>
<script>
var sheet = document.getElementById("style").sheet;
var grouping_rule = sheet.cssRules[0];
test(function() {
assert_equals(grouping_rule.type, CSSRule.MEDIA_RULE,
"Rule type of @media rule");
},
"rule_type");
test(function() {
assert_equals(grouping_rule.cssRules.length, 0,
"Starting cssRules.length of @media rule");
},
"rule_length");
test(function() {
assert_throws("HIERARCHY_REQUEST_ERR",
function() {
grouping_rule.insertRule("@import url(foo.css);", 0);
},
"inserting a disallowed rule should throw HIERARCHY_REQUEST_ERR");
},
"insert_import_throws");
test(function() {
assert_throws("INDEX_SIZE_ERR",
function() {
grouping_rule.insertRule("p { color: green }", 1);
},
"inserting at a bad index throws INDEX_SIZE_ERR");
},
"insert_index_throws1");
test(function() {
grouping_rule.insertRule("p { color: green }", 0);
assert_equals(grouping_rule.cssRules.length, 1,
"Modified cssRules.length of @media rule");
grouping_rule.insertRule("p { color: blue }", 1);
assert_equals(grouping_rule.cssRules.length, 2,
"Modified cssRules.length of @media rule");
grouping_rule.insertRule("p { color: aqua }", 1);
assert_equals(grouping_rule.cssRules.length, 3,
"Modified cssRules.length of @media rule");
assert_throws("INDEX_SIZE_ERR",
function() {
grouping_rule.insertRule("p { color: green }", 4);
},
"inserting at a bad index throws INDEX_SIZE_ERR");
assert_equals(grouping_rule.cssRules.length, 3,
"Modified cssRules.length of @media rule");
},
"insert_index_throws2");
test(function() {
while (grouping_rule.cssRules.length > 0) {
grouping_rule.deleteRule(0);
}
grouping_rule.insertRule("@media print {}", 0);
assert_equals(grouping_rule.cssRules.length, 1,
"Modified cssRules.length of @media rule");
assert_equals(grouping_rule.cssRules[0].type, CSSRule.MEDIA_RULE,
"inserting syntactically correct media rule succeeds");
},
"insert_media_succeed");
test(function() {
while (grouping_rule.cssRules.length > 0) {
grouping_rule.deleteRule(0);
}
grouping_rule.insertRule("p { color: yellow }", 0);
assert_equals(grouping_rule.cssRules.length, 1,
"Modified cssRules.length of @media rule");
assert_equals(grouping_rule.cssRules[0].type, CSSRule.STYLE_RULE,
"inserting syntactically correct style rule succeeds");
},
"insert_style_succeed");
test(function() {
while (grouping_rule.cssRules.length > 0) {
grouping_rule.deleteRule(0);
}
assert_throws("SYNTAX_ERR",
function() {
grouping_rule.insertRule("@media bad syntax;", 0);
},
"inserting syntactically invalid rule throws syntax error");
assert_equals(grouping_rule.cssRules.length, 0,
"Modified cssRules.length of @media rule");
},
"insert_bad_media_throw");
test(function() {
while (grouping_rule.cssRules.length > 0) {
grouping_rule.deleteRule(0);
}
assert_throws("SYNTAX_ERR",
function() {
grouping_rule.insertRule("", 0);
},
"inserting empty rule throws syntax error");
assert_equals(grouping_rule.cssRules.length, 0,
"Modified cssRules.length of @media rule");
},
"insert_empty_throw");
test(function() {
while (grouping_rule.cssRules.length > 0) {
grouping_rule.deleteRule(0);
}
assert_throws("SYNTAX_ERR",
function() {
grouping_rule.insertRule("@media print {} foo", 0);
},
"inserting rule with garbage afterwards throws syntax error");
assert_equals(grouping_rule.cssRules.length, 0,
"Modified cssRules.length of @media rule");
},
"insert_garbage_after_media_throw");
test(function() {
while (grouping_rule.cssRules.length > 0) {
grouping_rule.deleteRule(0);
}
assert_throws("SYNTAX_ERR",
function() {
grouping_rule.insertRule("p { color: yellow } foo", 0);
},
"inserting rule with garbage afterwards throws syntax error");
assert_equals(grouping_rule.cssRules.length, 0,
"Modified cssRules.length of @media rule");
},
"insert_garbage_after_style_throw");
test(function() {
while (grouping_rule.cssRules.length > 0) {
grouping_rule.deleteRule(0);
}
assert_throws("SYNTAX_ERR",
function() {
grouping_rule.insertRule("@media print {} @media print {}", 0);
},
"inserting multiple rules throws syntax error");
assert_equals(grouping_rule.cssRules.length, 0,
"Modified cssRules.length of @media rule");
},
"insert_two_media_throw");
test(function() {
while (grouping_rule.cssRules.length > 0) {
grouping_rule.deleteRule(0);
}
assert_throws("SYNTAX_ERR",
function() {
grouping_rule.insertRule("p { color: yellow } @media print {}", 0);
},
"inserting multiple rules throws syntax error");
assert_equals(grouping_rule.cssRules.length, 0,
"Modified cssRules.length of @media rule");
},
"insert_style_media_throw");
test(function() {
while (grouping_rule.cssRules.length > 0) {
grouping_rule.deleteRule(0);
}
assert_throws("SYNTAX_ERR",
function() {
grouping_rule.insertRule("@media print {} p { color: yellow }", 0);
},
"inserting multiple rules throws syntax error");
assert_equals(grouping_rule.cssRules.length, 0,
"Modified cssRules.length of @media rule");
},
"insert_media_style_throw");
test(function() {
while (grouping_rule.cssRules.length > 0) {
grouping_rule.deleteRule(0);
}
assert_throws("SYNTAX_ERR",
function() {
grouping_rule.insertRule("p { color: yellow } p { color: yellow }", 0);
},
"inserting multiple rules throws syntax error");
assert_equals(grouping_rule.cssRules.length, 0,
"Modified cssRules.length of @media rule");
},
"insert_two_style_throw");
test(function() {
while (grouping_rule.cssRules.length > 0) {
grouping_rule.deleteRule(0);
}
var res = grouping_rule.insertRule("p { color: green }", 0);
assert_equals(res, 0, "return value should be index");
assert_equals(grouping_rule.cssRules.length, 1,
"Modified cssRules.length of @media rule");
res = grouping_rule.insertRule("p { color: green }", 0);
assert_equals(res, 0, "return value should be index");
assert_equals(grouping_rule.cssRules.length, 2,
"Modified cssRules.length of @media rule");
res = grouping_rule.insertRule("p { color: green }", 2);
assert_equals(res, 2, "return value should be index");
assert_equals(grouping_rule.cssRules.length, 3,
"Modified cssRules.length of @media rule");
},
"insert_retval");
</script>
</body>
</html>