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

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Test Info: Warnings

/**
* Any copyright is dedicated to the Public Domain.
*/
/* exported testGenerator */
var testGenerator = testSteps();
function* testSteps() {
const dataCount = 30;
let request = indexedDB.open(
this.window ? window.location.pathname : "Splendid Test",
1
);
request.onerror = errorHandler;
request.onupgradeneeded = grabEventAndContinueHandler;
let event = yield undefined;
let db = event.target.result;
db.onerror = errorHandler;
event.target.onsuccess = continueToNextStep;
let objectStore = db.createObjectStore("", { keyPath: "key" });
objectStore.createIndex("", "index");
for (let i = 0; i < dataCount; i++) {
objectStore.add({ key: i, index: i });
}
yield undefined;
function getObjectStore() {
return db.transaction("").objectStore("");
}
function getIndex() {
return db.transaction("").objectStore("").index("");
}
let count = 0;
getObjectStore().openCursor().onsuccess = function (event) {
let cursor = event.target.result;
if (cursor) {
count++;
cursor.continue();
} else {
continueToNextStep();
}
};
yield undefined;
is(count, dataCount, "Saw all data");
count = 0;
getObjectStore().openCursor().onsuccess = function (event) {
let cursor = event.target.result;
if (cursor) {
is(cursor.primaryKey, count, "Got correct object");
if (count) {
count++;
cursor.continue();
} else {
count = 10;
cursor.advance(10);
}
} else {
continueToNextStep();
}
};
yield undefined;
is(count, dataCount, "Saw all data");
count = 0;
getIndex().openCursor().onsuccess = function (event) {
let cursor = event.target.result;
if (cursor) {
is(cursor.primaryKey, count, "Got correct object");
if (count) {
count++;
cursor.continue();
} else {
count = 10;
cursor.advance(10);
}
} else {
continueToNextStep();
}
};
yield undefined;
is(count, dataCount, "Saw all data");
count = 0;
getIndex().openKeyCursor().onsuccess = function (event) {
let cursor = event.target.result;
if (cursor) {
is(cursor.primaryKey, count, "Got correct object");
if (count) {
count++;
cursor.continue();
} else {
count = 10;
cursor.advance(10);
}
} else {
continueToNextStep();
}
};
yield undefined;
is(count, dataCount, "Saw all data");
count = 0;
getObjectStore().openCursor().onsuccess = function (event) {
let cursor = event.target.result;
if (cursor) {
is(cursor.primaryKey, count, "Got correct object");
if (count == 0) {
cursor.advance(dataCount + 1);
} else {
ok(false, "Should never get here!");
cursor.continue();
}
} else {
continueToNextStep();
}
};
yield undefined;
is(count, 0, "Saw all data");
count = dataCount - 1;
getObjectStore().openCursor(null, "prev").onsuccess = function (event) {
let cursor = event.target.result;
if (cursor) {
is(cursor.primaryKey, count, "Got correct object");
count--;
if (count == dataCount - 2) {
cursor.advance(10);
count -= 9;
} else {
cursor.continue();
}
} else {
continueToNextStep();
}
};
yield undefined;
is(count, -1, "Saw all data");
count = dataCount - 1;
getObjectStore().openCursor(null, "prev").onsuccess = function (event) {
let cursor = event.target.result;
if (cursor) {
is(cursor.primaryKey, count, "Got correct object");
if (count == dataCount - 1) {
cursor.advance(dataCount + 1);
} else {
ok(false, "Should never get here!");
cursor.continue();
}
} else {
continueToNextStep();
}
};
yield undefined;
is(count, dataCount - 1, "Saw all data");
finishTest();
}