mozilla-central/toolkit/modules/tests/browser/browser_Finder_overflowed_textarea.js (file symbol)

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Test Info: Errors

/* Any copyright is dedicated to the Public Domain.
"use strict";
add_task(async function test_offscreen_text() {
// Generate URI of a big DOM that contains the target text
// within a textarea at several line positions (to force
// some targets to be overflowed).
const linesToGenerate = 155;
const linesToInsertTargetText = [5, 50, 150];
const targetCount = linesToInsertTargetText.length;
let t = 0;
const TARGET_TEXT = "findthis";
let URI = "<body><textarea>";
for (let i = 0; i < linesToGenerate; i++) {
URI += i + " ";
if (t < targetCount && linesToInsertTargetText[t] == i) {
URI += TARGET_TEXT;
t++;
}
URI += "\n";
}
URI += "</textarea></body>";
await BrowserTestUtils.withNewTab(
{
gBrowser,
url: "data:text/html;charset=utf-8," + encodeURIComponent(URI),
},
async function (browser) {
let finder = browser.finder;
let listener = {
onFindResult() {
ok(false, "callback wasn't replaced");
},
};
finder.addResultListener(listener);
function waitForFind() {
return new Promise(resolve => {
listener.onFindResult = resolve;
});
}
// Find each of the targets.
for (let t = 0; t < targetCount; ++t) {
let promiseFind = waitForFind();
if (t == 0) {
finder.fastFind(TARGET_TEXT, false, false);
} else {
finder.findAgain(TARGET_TEXT, false, false, false);
}
let findResult = await promiseFind;
is(
findResult.result,
Ci.nsITypeAheadFind.FIND_FOUND,
"Found target " + t
);
}
// Find one more time and make sure we wrap.
let promiseFind = waitForFind();
finder.findAgain(TARGET_TEXT, false, false, false);
let findResult = await promiseFind;
is(
findResult.result,
Ci.nsITypeAheadFind.FIND_WRAPPED,
"Wrapped to first target"
);
finder.removeResultListener(listener);
}
);
});