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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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179
dom/indexedDB/test/unit/test_blocked_order.js Normal file
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/**
* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/
*/
var testGenerator = testSteps();
function testSteps()
{
const databaseName =
("window" in this) ? window.location.pathname : "Test";
const databaseCount = 10;
// Test 1: Make sure basic versionchange events work and that they don't
// trigger blocked events.
info("Opening " + databaseCount + " databases with version 1");
let databases = [];
for (let i = 0; i < databaseCount; i++) {
let thisIndex = i;
info("Opening database " + thisIndex);
let request = indexedDB.open(databaseName, 1);
request.onerror = errorHandler;
request.onblocked = errorHandler;
request.onsuccess = grabEventAndContinueHandler;
let event = yield undefined;
is(event.type, "success", "Got success event");
let db = request.result;
is(db.version, 1, "Got version 1");
db.onversionchange = function(event) {
info("Closing database " + thisIndex);
db.close();
databases.splice(databases.indexOf(db), 1);
};
databases.push(db);
}
is(databases.length, databaseCount, "Created all databases with version 1");
info("Opening database with version 2");
let request = indexedDB.open(databaseName, 2);
request.onerror = errorHandler;
request.onsuccess = grabEventAndContinueHandler;
request.onblocked = function(event) {
ok(false, "Should not receive a blocked event");
};
let event = yield undefined;
is(event.type, "success", "Got success event");
is(databases.length, 0, "All databases with version 1 were closed");
let db = request.result;
is(db.version, 2, "Got version 2");
info("Deleting database with version 2");
db.close();
request = indexedDB.deleteDatabase(databaseName);
request.onerror = errorHandler;
request.onsuccess = grabEventAndContinueHandler;
event = yield undefined;
is(event.type, "success", "Got success event");
// Test 2: Make sure blocked events aren't delivered until all versionchange
// events have been delivered.
info("Opening " + databaseCount + " databases with version 1");
for (let i = 0; i < databaseCount; i++) {
let thisIndex = i;
info("Opening database " + thisIndex);
let request = indexedDB.open(databaseName, 1);
request.onerror = errorHandler;
request.onblocked = errorHandler;
request.onsuccess = grabEventAndContinueHandler;
let event = yield undefined;
is(event.type, "success", "Got success event");
let db = request.result;
is(db.version, 1, "Got version 1");
db.onversionchange = function(event) {
if (thisIndex == (databaseCount - 1)) {
info("Closing all databases with version 1");
for (let j = 0; j < databases.length; j++) {
databases[j].close();
}
databases = [];
info("Done closing all databases with version 1");
} else {
info("Not closing database " + thisIndex);
}
};
databases.push(db);
}
is(databases.length, databaseCount, "Created all databases with version 1");
info("Opening database with version 2");
request = indexedDB.open(databaseName, 2);
request.onerror = errorHandler;
request.onsuccess = grabEventAndContinueHandler;
request.onblocked = function(event) {
ok(false, "Should not receive a blocked event");
};
event = yield undefined;
is(event.type, "success", "Got success event");
is(databases.length, 0, "All databases with version 1 were closed");
db = request.result;
is(db.version, 2, "Got version 2");
info("Deleting database with version 2");
db.close();
request = indexedDB.deleteDatabase(databaseName);
request.onerror = errorHandler;
request.onsuccess = grabEventAndContinueHandler;
event = yield undefined;
is(event.type, "success", "Got success event");
// Test 3: A blocked database left in that state should not hang shutdown.
info("Opening 1 database with version 1");
request = indexedDB.open(databaseName, 1);
request.onerror = errorHandler;
request.onblocked = errorHandler;
request.onsuccess = grabEventAndContinueHandler;
event = yield undefined;
is(event.type, "success", "Got success event");
db = request.result;
is(db.version, 1, "Got version 1");
info("Opening database with version 2");
request = indexedDB.open(databaseName, 2);
request.onerror = function(e) {
e.preventDefault();
};
request.onsuccess = errorHandler;
request.onblocked = grabEventAndContinueHandler;
event = yield undefined;
ok(true, "Got blocked");
// Just allow this to remain blocked ...
finishTest();
yield undefined;
}