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Test Info: Warnings
- This test gets skipped with pattern: tsan
- Manifest: layout/style/test/mochitest.toml
<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<title>Test for computation of values in property database</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="text/javascript" src="property_database.js"></script>
<style type="text/css" id="stylesheet"></style>
<style type="text/css">
/* For 'width', 'height', etc., need a constant size container. */
#display { width: 500px; height: 200px }
</style>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<script type="text/javascript">
SimpleTest.waitForExplicitFinish();
SimpleTest.requestLongerTimeout(2);
var load_count = 0;
function load_done() {
if (++load_count == 3)
run_tests();
}
</script>
</head>
<body>
<iframe id="unstyledn" src="unstyled.xml" height="10" width="10" onload="load_done()"></iframe>
<iframe id="unstyledf" src="unstyled-frame.xml" height="10" width="10" onload="load_done()"></iframe>
<p id="display"><span><span id="elementf"></span></span></p>
<div id="content" style="display: none">
<div><span id="elementn"></span></div>
</div>
<pre id="test">
<script class="testbody" type="text/javascript">
/** Test for computation of values in property database **/
var gBadComputedNoFrame = {
// These are probably bogus tests...
"-moz-margin-end": [ "0%", "calc(0% + 0px)" ],
"-moz-margin-start": [ "0%", "calc(0% + 0px)" ],
"-moz-padding-end": [ "0%", "calc(0% + 0px)", "calc(-1%)" ],
"-moz-padding-start": [ "0%", "calc(0% + 0px)", "calc(-1%)" ],
"margin": [ "0% 0px 0em 0pt" ],
"margin-block-end": [ "0%", "calc(0% + 0px)" ],
"margin-block-start": [ "0%", "calc(0% + 0px)" ],
"margin-bottom": [ "0%", "calc(0% + 0px)" ],
"margin-inline-end": [ "0%", "calc(0% + 0px)" ],
"margin-inline-start": [ "0%", "calc(0% + 0px)" ],
"margin-left": [ "0%", "calc(0% + 0px)" ],
"margin-right": [ "0%", "calc(0% + 0px)" ],
"margin-top": [ "0%", "calc(0% + 0px)" ],
"padding": [ "0% 0px 0em 0pt", "calc(0px) calc(0em) calc(-2px) calc(-1%)" ],
"padding-block-end": [ "0%", "calc(0% + 0px)", "calc(-1%)" ],
"padding-block-start": [ "0%", "calc(0% + 0px)", "calc(-1%)" ],
"padding-bottom": [ "0%", "calc(0% + 0px)", "calc(-1%)" ],
"padding-inline-end": [ "0%", "calc(0% + 0px)", "calc(-1%)" ],
"padding-inline-start": [ "0%", "calc(0% + 0px)", "calc(-1%)" ],
"padding-left": [ "0%", "calc(0% + 0px)", "calc(-1%)" ],
"padding-right": [ "0%", "calc(0% + 0px)", "calc(-1%)" ],
"padding-top": [ "0%", "calc(0% + 0px)", "calc(-1%)" ],
};
function xfail_value(property, value, is_initial, has_frame) {
if (!has_frame && (property in gBadComputedNoFrame) &&
gBadComputedNoFrame[property].includes(value))
return true;
return false;
}
var gSwapInitialWhenHaveFrame = {
// For the inline axis ('width' by default): when there's a frame,
// 'stretch' and its prefixed aliases work out to the same as 'auto',
// given the prerequisites of only 'display: block'.
"width": [ "-moz-available", "-webkit-fill-available", "stretch" ],
// For the block axis ('height' by default): when there's a frame, these
// keywords work out to the same as the initial value, i.e. `auto`, given
// the prerequisites of only 'display: block'.
"height": [ "-moz-max-content", "-moz-min-content", "-moz-fit-content",
"-moz-available", "-webkit-fill-available",
"max-content", "min-content", "fit-content",
"fit-content(100px)", "fit-content(10%)",
"fit-content(calc(3*25px + 50%))", "stretch" ],
};
// Use the same lists for logical versions of width/height properties:
gSwapInitialWhenHaveFrame["inline-size"] = gSwapInitialWhenHaveFrame.width;
gSwapInitialWhenHaveFrame["block-size"] = gSwapInitialWhenHaveFrame.height;
function swap_when_frame(property, value) {
return (property in gSwapInitialWhenHaveFrame) &&
gSwapInitialWhenHaveFrame[property].includes(value);
}
var gDisplayTree = document.getElementById("display");
var gElementN = document.getElementById("elementn");
var gElementF = document.getElementById("elementf");
var gStyleSheet = document.getElementById("stylesheet").sheet;
var gRule1 = gStyleSheet.cssRules[gStyleSheet.insertRule("#elementn, #elementf {}", gStyleSheet.cssRules.length)];
var gRule2 = gStyleSheet.cssRules[gStyleSheet.insertRule("#elementn, #elementf {}", gStyleSheet.cssRules.length)];
var gInitialValuesN;
var gInitialValuesF;
var gInitialPrereqsRuleN;
var gInitialPrereqsRuleF;
function setup_initial_values(id, ivalprop, prereqprop) {
var iframe = document.getElementById(id);
window[ivalprop] = iframe.contentWindow.getComputedStyle(
iframe.contentDocument.documentElement.firstChild);
var sheet = iframe.contentDocument.styleSheets[0];
// For 'width', 'height', etc., need a constant size container.
sheet.insertRule(":root { height: 200px; width: 500px }", sheet.cssRules.length);
window[prereqprop] = sheet.cssRules[sheet.insertRule(":root > * {}", sheet.cssRules.length)];
}
function test_value(property, val, is_initial)
{
var info = gCSSProperties[property];
if ("prerequisites" in info) {
var prereqs = info.prerequisites;
for (var prereq in prereqs) {
gRule1.style.setProperty(prereq, prereqs[prereq], "");
gInitialPrereqsRuleN.style.setProperty(prereq, prereqs[prereq], "");
gInitialPrereqsRuleF.style.setProperty(prereq, prereqs[prereq], "");
}
}
if (info.inherited && is_initial) {
gElementN.parentNode.style.setProperty(property, info.other_values[0], "");
gElementF.parentNode.style.setProperty(property, info.other_values[0], "");
}
var initial_computed_n = get_computed_value(gInitialValuesN, property);
var initial_computed_f = get_computed_value(gInitialValuesF, property);
if (is_initial) {
gRule1.style.setProperty(property, info.other_values[0], "");
var other_computed_n = get_computed_value(getComputedStyle(gElementN, ""), property);
var other_computed_f = get_computed_value(getComputedStyle(gElementF, ""), property);
isnot(other_computed_n, initial_computed_n,
"should be testing with values that compute to different things " +
"for '" + property + "'");
isnot(other_computed_f, initial_computed_f,
"should be testing with values that compute to different things " +
"for '" + property + "'");
}
// It used to be important for values that are supposed to compute to the
// initial value (given the design of the old rule tree, nsRuleNode) that
// we're modifying the most specific rule that matches the element, and
// that we've already requested style while that rule was empty. This
// means we'd have a cached aStartStruct from the parent in the rule
// tree (caching the "other" value), so we'd make sure we don't get the
// initial value from the luck of default-initialization. This means
// that it would've been important that we set the prereqs on
// gRule1.style rather than on gElement.style.
//
// However, the rule tree no longer stores cached structs, and we only
// temporarily cache reset structs during a single restyle. So the
// particular failure mode this was designed to test for isn't as
// likely to eventuate.
gRule2.style.setProperty(property, val, "");
var val_computed_n = get_computed_value(getComputedStyle(gElementN, ""), property);
var val_computed_f = get_computed_value(getComputedStyle(gElementF, ""), property);
isnot(val_computed_n, "",
"should not get empty value for '" + property + ":" + val + "'");
isnot(val_computed_f, "",
"should not get empty value for '" + property + ":" + val + "'");
if (is_initial) {
(xfail_value(property, val, is_initial, false) ? todo_is : is)(
val_computed_n, initial_computed_n,
"should get initial value for '" + property + ":" + val + "'");
(xfail_value(property, val, is_initial, true) ? todo_is : is)(
val_computed_f, initial_computed_f,
"should get initial value for '" + property + ":" + val + "'");
} else {
(xfail_value(property, val, is_initial, false) ? todo_isnot : isnot)(
val_computed_n, initial_computed_n,
"should not get initial value for '" + property + ":" + val + "' on elementn.");
var swap = swap_when_frame(property, val);
(xfail_value(property, val, is_initial, true) ? todo_isnot : (swap ? is : isnot))(
val_computed_f, initial_computed_f,
"should " + (swap ? "" : "not ") +
"get initial value for '" + property + ":" + val + "' on elementf.");
}
if (is_initial)
gRule1.style.removeProperty(property);
gRule2.style.removeProperty(property);
if ("prerequisites" in info) {
var prereqs = info.prerequisites;
for (var prereq in prereqs) {
gRule1.style.removeProperty(prereq);
gInitialPrereqsRuleN.style.removeProperty(prereq);
gInitialPrereqsRuleF.style.removeProperty(prereq);
}
}
if (info.inherited && is_initial) {
gElementN.parentNode.style.removeProperty(property);
gElementF.parentNode.style.removeProperty(property);
}
}
function test_property(prop) {
var info = gCSSProperties[prop];
for (var idx in info.initial_values)
test_value(prop, info.initial_values[idx], true);
for (var idx in info.other_values)
test_value(prop, info.other_values[idx], false);
}
function run_tests() {
setup_initial_values("unstyledn", "gInitialValuesN", "gInitialPrereqsRuleN");
setup_initial_values("unstyledf", "gInitialValuesF", "gInitialPrereqsRuleF");
var props = [];
for (var prop in gCSSProperties)
props.push(prop);
props = props.reverse();
function do_one() {
if (props.length == 0) {
SimpleTest.finish();
return;
}
test_property(props.pop());
SimpleTest.executeSoon(do_one);
}
SimpleTest.executeSoon(do_one);
}
load_done();
</script>
</pre>
</body>
</html>