// Because link-coloring for visited links is asynchronous, running
// reftests that involve link coloring requires that we poll for the
// correct result until all links are styled correctly.
// A requirement of these reftests is that the reference rendering is
// styled correctly when loaded. We only poll for the tests.
var gTests = [
// there's also an implicit "load visited-page.html" at the start,
// thanks to the code below.
// IMPORTANT NOTE: For these tests, the test and reference are not
// snapshotted in the same way. The REFERENCE (second file) is
// assumed to be complete when loaded, but we poll for visited link
// coloring on the TEST (first file) until the test passes. "== pseudo-classes-02.svg pseudo-classes-02-ref.svg", "needs-focus == caret-color-on-visited-1.html caret-color-on-visited-1-ref.html", "!= color-on-link-1-ref.html color-on-visited-1-ref.html", "== color-on-link-1.html color-on-link-1-ref.html", "== color-on-link-before-1.html color-on-link-1-ref.html", "== color-on-visited-1.html color-on-visited-1-ref.html", "== color-on-visited-before-1.html color-on-visited-1-ref.html", "== color-on-visited-text-1.html color-on-visited-text-1-ref.html", "!= content-color-on-link-before-1-ref.html content-color-on-visited-before-1-ref.html", "== content-color-on-link-before-1.html content-color-on-link-before-1-ref.html", "== content-color-on-visited-before-1.html content-color-on-visited-before-1-ref.html", "== content-on-link-before-1.html content-before-1-ref.html", "== content-on-visited-before-1.html content-before-1-ref.html", "== color-on-text-decoration-1.html color-on-text-decoration-1-ref.html", "== color-on-bullets-1.html color-on-bullets-1-ref.html",
// NOTE: background-color is tested by all the selector tests (and
// also color-choice-1) and therefore doesn't have its own tests.
// FIXME: Maybe add a test for selection colors (foreground and
// background), if possible. "== width-on-link-1.html width-1-ref.html", "== width-on-visited-1.html width-1-ref.html", "== border-1.html border-1-ref.html", "== border-2a.html border-2-ref.html", "== border-2b.html border-2-ref.html",
// FIXME: Commented out because of dynamic change handling bugs in
// border-collapse tables that mean we get an incorrect rendering when
// the asynchronous restyle-from-history arrives.
//"== border-collapse-1.html border-collapse-1-ref.html", "== outline-1.html outline-1-ref.html", "== column-rule-1.html column-rule-1-ref.html", "!= column-rule-1.html column-rule-1-notref.html", "== color-choice-1.html color-choice-1-ref.html", "== selector-descendant-1.html selector-descendant-1-ref.html", "== selector-descendant-2.xhtml selector-descendant-2-ref.xhtml", "== selector-child-1.html selector-child-1-ref.html", "== selector-child-2.xhtml selector-child-2-ref.xhtml", "== selector-adj-sibling-1.html selector-adj-sibling-1-ref.html", "== selector-adj-sibling-2.html selector-adj-sibling-2-ref.html", "== selector-adj-sibling-3.xhtml selector-adj-sibling-3-ref.xhtml", "== selector-any-sibling-1.html selector-any-sibling-1-ref.html", "== selector-any-sibling-2.html selector-any-sibling-2-ref.html", "== subject-of-selector-descendant-1.html subject-of-selector-1-ref.html", "== subject-of-selector-descendant-2.xhtml subject-of-selector-descendant-2-ref.xhtml", "== subject-of-selector-child-1.html subject-of-selector-1-ref.html", "== subject-of-selector-adj-sibling-1.html subject-of-selector-1-ref.html", "== subject-of-selector-any-sibling-1.html subject-of-selector-1-ref.html", "== inherit-keyword-1.xhtml inherit-keyword-1-ref.html", "== svg-image-visited-1a.html svg-image-visited-1-ref.html", "== svg-image-visited-1b.html svg-image-visited-1-ref.html", "== svg-image-visited-1c.html svg-image-visited-1-ref.html", "== svg-image-visited-1d.html svg-image-visited-1-ref.html",
// FIXME: commented out because dynamic changes on the non-first-line
// part of the test don't work right when the link becomes visited.
//"== first-line-1.html first-line-1-ref.html", "== white-to-transparent-1.html white-to-transparent-1-ref.html", "== link-root-1.xhtml link-root-1-ref.xhtml", "== mathml-links.html mathml-links-ref.html", "== placeholder-1.html placeholder-1-ref.html", "== visited-inherit-1.html visited-inherit-1-ref.html", "== transition-on-visited.html transition-on-visited-ref.html", "== logical-box-border-color-visited-link-001.html logical-box-border-color-visited-link-ref.html", "== logical-box-border-color-visited-link-002.html logical-box-border-color-visited-link-ref.html", "== logical-box-border-color-visited-link-003.html logical-box-border-color-visited-link-ref.html", "== svg-paint-currentcolor-visited.svg svg-paint-currentcolor-visited-ref.svg", "== variables-visited.html variables-visited-ref.html",
];
// We record the maximum number of times we had to look at a test before
// it switched to the passing state (though we assume it's 10 to start
// rather than 0 so that we have a reasonable default). Then we make a
// test "time out" if it takes more than gTimeoutFactor times that
// amount of time. This allows us to report a test failure rather than
// making a test failure just show up as a timeout. var gMaxPassingTries = 10; var gTimeoutFactor = 10;
function startIframe(url) {
return new Promise(resolve => { var element = document.createElement("iframe");
element.addEventListener("load", () => {
element.contentDocument.fonts.ready.then(() => {
resolve(element.contentWindow);
});
}, {once: true});
// smaller than normal reftests, but enough for these
element.setAttribute("style", "width: 30em; height: 10em");
element.src = "css-visited/" + url;
document.body.appendChild(element);
});
}
async function runTests() {
SimpleTest.waitForExplicitFinish();
SimpleTest.requestFlakyTimeout("async link coloring");
// Set caret to a known size, for tests of :visited caret-color styling
await SpecialPowers.pushPrefEnv({'set': [['ui.caretWidth', 16]]});
info("opening visited page");
let win = window.open("css-visited/visited-page.html", "_blank");
await new Promise(resolve => {
win.onload = resolve;
});
info("running tests");
await Promise.all(gTests.map(runTest));
win.close();
SimpleTest.finish();
}
function passes(equal, shot1, shot2)
{
let [correct] = compareSnapshots(shot1, shot2, equal);
return correct;
}
function waitFor100msAndIdle() {
return new Promise(resolve => setTimeout(function() {
requestIdleCallback(resolve);
}, 100));
}
async function runTest(testLine) {
let splitData = testLine.split(" ");
let isEqual;
let needsFocus = false;
while (true) {
let op = splitData.shift();
if (op == "needs-focus") {
needsFocus = true;
} else if (op == "==" || op == "!=") {
isEqual = op == "==";
break;
} else {
ok(false, "Unknown syntax");
return;
}
}
let [testFile, refFile] = splitData;
let promiseTestWin = startIframe(testFile);
let promiseRefWin = startIframe(refFile);
let refSnapshot = snapshotWindow(await promiseRefWin);
let testWindow = await promiseTestWin;
// Always wait at least 100ms, so that any test that switches
// from passing to failing when the asynchronous link coloring
// happens should fail at least some of the time.
await waitFor100msAndIdle();
let tries;
let testSnapshot;
for (tries = 0; tries < gMaxPassingTries * gTimeoutFactor; ++tries) {
if (needsFocus) {
await SimpleTest.promiseFocus(testWindow, false);
}
testSnapshot = snapshotWindow(testWindow, true);
if (passes(isEqual, testSnapshot, refSnapshot)) {
if (tries > gMaxPassingTries) {
gMaxPassingTries = tries;
}
break;
}
// Links might not have been colored yet. Try again in 100ms.
await waitFor100msAndIdle();
}
let result = assertSnapshots(testSnapshot, refSnapshot,
isEqual, null, testFile, refFile);
if (!result) {
info(`Gave up after ${tries} tries, ` +
`maxp=${gMaxPassingTries}, fact=${gTimeoutFactor}`);
}
}
runTests();
</script>
</pre>
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