mozilla-central/dom/indexedDB/test/unit/test_upgrade_add_index.js (file symbol)

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Test Info: Warnings

/**
* Any copyright is dedicated to the Public Domain.
*/
/* exported testGenerator */
var testGenerator = testSteps();
function generateKey() {
let algorithm = {
name: "RSASSA-PKCS1-v1_5",
hash: "SHA-256",
modulusLength: 1024,
publicExponent: new Uint8Array([0x01, 0x00, 0x01]),
};
return crypto.subtle.generateKey(algorithm, true, ["sign", "verify"]);
}
const hasCrypto = "crypto" in this;
/**
* Test addition of a new index when the existing values in the referenced
* object store have potentially unusual structured clone participants.
*
* When a new index is created, the existing object store's contents need to be
* processed to derive the index values. This is a special event because
* normally index values are extracted at add()/put() time in the content
* process using the page/worker's JS context (modulo some spec stuff). But
* the index creation operation is actually running in the parent process on the
* I/O thread for the given database. So the JS context scenario is suddenly
* a lot more complicated, and we need extra test coverage, in particular for
* unusual structured clone payloads.
*
* Relationship to other test:
* - test_create_index_with_integer_keys.js: This test is derived from that one.
*/
function* testSteps() {
// -- Create our fancy data that has interesting structured clone issues.
const allData = [];
// the xpcshell tests normalize self into existence.
if (hasCrypto) {
info("creating crypto key");
// (all IDB tests badly need a test driver update...)
generateKey().then(grabEventAndContinueHandler);
let key = yield undefined;
allData.push({
id: 1,
what: "crypto",
data: key,
});
} else {
info("not storing crypto key");
}
// -- Create the IDB and populate it with the base data.
info("opening initial database");
let request = indexedDB.open(
this.window ? window.location.pathname : "Splendid Test",
1
);
request.onerror = errorHandler;
request.onupgradeneeded = grabEventAndContinueHandler; // advance onupgradeneeded
let event = yield undefined; // wait for onupgradeneeded.
let db = event.target.result;
db.onerror = errorHandler;
event.target.onsuccess = continueToNextStep; // advance when the open completes
// Make object store, add data.
let objectStore = db.createObjectStore("foo", { keyPath: "id" });
for (let datum of allData) {
info(`add()ing ${datum.what}`);
objectStore.add(datum);
}
// wait for the open to complete following our upgrade transaction self-closing
yield undefined;
// explicitly close the database so we can open it again. We don't wait for
// this, but the upgrade open will block until the close actually happens.
info("closing initial database");
db.close();
// -- Trigger an upgrade, adding a new index.
info("opening database for upgrade to v2");
request = indexedDB.open(
this.window ? window.location.pathname : "Splendid Test",
2
);
request.onerror = errorHandler;
request.onupgradeneeded = grabEventAndContinueHandler; // advance onupgradeneeded
event = yield undefined; // wait for onupgradeneeded
let db2 = event.target.result;
db2.onerror = errorHandler;
event.target.onsuccess = continueToNextStep; // advance when the open completes
// Create index.
info("in upgrade, creating index");
event.target.transaction.objectStore("foo").createIndex("foo", "what");
yield undefined; // wait for the open to complete
info("upgrade completed");
finishTest();
}