mozilla-central/testing/web-platform/tests/css/css-conditional/js/conditional-CSSGroupingRule.html

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<!DOCTYPE HTML>
<html lang=en>
<title>CSSGroupingRule Conditional Rules Test</title>
<link rel="author" title="L. David Baron" href="https://dbaron.org/">
<link rel="author" title="Elika J. Etemad" href="http://fantasai.inkedblade.net/contact">
<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 unsupported { /* tests need to work even if condition is false */ }
@supports (unsupported: value) { }
</style>
<div id=log></div>
<div id="test"></div>
<script>
var rules = document.getElementById("style").sheet.cssRules;
var rule_names = ["@media", "@supports"];
var rule_types = [CSSRule.MEDIA_RULE, CSSRule.SUPPORTS_RULE]
var rule_nums = [4, 12]
for (let i = 0; i < 2; i++) {
var grouping_rule = rules[i];
var rule_name = rule_names[i];
test(function() {
assert_true(grouping_rule instanceof CSSGroupingRule,
rule_name + " instanceof CSSGroupingRule");
},
rule_name + " is CSSGroupingRule");
test(function() {
assert_equals(grouping_rule.type, rule_types[i],
"Rule type of " + rule_name + " rule");
assert_equals(grouping_rule.type, rule_nums[i],
"Rule number of " + rule_name + " rule");
},
rule_name + " rule type");
test(function() {
assert_equals(grouping_rule.cssRules.length, 0,
"Starting cssRules.length of " + rule_name + " rule");
},
"Empty " + rule_name + " rule length");
test(function() {
assert_throws_dom("HIERARCHY_REQUEST_ERR",
function() {
grouping_rule.insertRule("@import url(foo.css);", 0);
},
"inserting a disallowed rule should throw HIERARCHY_REQUEST_ERR");
},
"insertRule of @import into " + rule_name);
test(function() {
assert_throws_dom("INDEX_SIZE_ERR",
function() {
grouping_rule.insertRule("p { color: green }", 1);
},
"inserting at a bad index throws INDEX_SIZE_ERR");
},
"insertRule into empty " + rule_name + " at bad index");
test(function() {
grouping_rule.insertRule("p { color: green }", 0);
assert_equals(grouping_rule.cssRules.length, 1,
"Modified cssRules.length of " + rule_name + " rule");
grouping_rule.insertRule("p { color: blue }", 1);
assert_equals(grouping_rule.cssRules.length, 2,
"Modified cssRules.length of " + rule_name + " rule");
grouping_rule.insertRule("p { color: aqua }", 1);
assert_equals(grouping_rule.cssRules.length, 3,
"Modified cssRules.length of " + rule_name + " rule");
assert_throws_dom("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 " + rule_name + " rule");
},
"insertRule into " + rule_name + " updates length");
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 " + rule_name + " rule");
assert_equals(grouping_rule.cssRules[0].type, CSSRule.MEDIA_RULE,
"inserting syntactically correct media rule succeeds");
},
"insertRule of valid @media into " + rule_name);
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 " + rule_name + " rule");
assert_equals(grouping_rule.cssRules[0].type, CSSRule.STYLE_RULE,
"inserting syntactically correct style rule succeeds");
},
"insertRule of valid style rule into " + rule_name);
test(function() {
while (grouping_rule.cssRules.length > 0) {
grouping_rule.deleteRule(0);
}
assert_throws_dom("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 " + rule_name + " rule");
},
"insertRule of invalid @media into " + rule_name);
test(function() {
while (grouping_rule.cssRules.length > 0) {
grouping_rule.deleteRule(0);
}
assert_throws_dom("SYNTAX_ERR",
function() {
grouping_rule.insertRule("", 0);
},
"inserting empty rule throws syntax error");
assert_equals(grouping_rule.cssRules.length, 0,
"Modified cssRules.length of " + rule_name + " rule");
},
"insertRule of empty string into " + rule_name);
test(function() {
while (grouping_rule.cssRules.length > 0) {
grouping_rule.deleteRule(0);
}
assert_throws_dom("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 " + rule_name + " rule");
},
"insertRule of valid @media rule followed by garbage into " + rule_name);
test(function() {
while (grouping_rule.cssRules.length > 0) {
grouping_rule.deleteRule(0);
}
assert_throws_dom("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 " + rule_name + " rule");
},
"insertRule of valid style rule followed by garbage into " + rule_name);
test(function() {
while (grouping_rule.cssRules.length > 0) {
grouping_rule.deleteRule(0);
}
assert_throws_dom("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 " + rule_name + " rule");
},
"insertRule of mutiple valid @media into " + rule_name);
test(function() {
while (grouping_rule.cssRules.length > 0) {
grouping_rule.deleteRule(0);
}
assert_throws_dom("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 " + rule_name + " rule");
},
"insertRule of valid style rulle followed by valid @media into " + rule_name);
test(function() {
while (grouping_rule.cssRules.length > 0) {
grouping_rule.deleteRule(0);
}
assert_throws_dom("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 " + rule_name + " rule");
},
"insertRule of valid style rule followed by valid @media into " + rule_name);
test(function() {
while (grouping_rule.cssRules.length > 0) {
grouping_rule.deleteRule(0);
}
assert_throws_dom("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 " + rule_name + " rule");
},
"insertRule of two valid style rules into " + rule_name);
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 " + rule_name + " 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 " + rule_name + " 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 " + rule_name + " rule");
},
"Return value of insertRule into " + rule_name);
}
</script>
</body>
</html>