Source code
Revision control
Copy as Markdown
Other Tools
let testId;
let messageSource;
let messageSink;
let messageTarget;
try {
messageSource = window;
messageSink = window.parent;
messageTarget = document.referrer;
} catch (_) {
messageSource = self;
messageSink = self;
messageTarget = null;
}
messageSource.addEventListener("message", async e => {
try {
console.log("Read script received " + e.data.message);
testId = e.data.message;
const storeName = "testObjectStore" + testId;
let actual;
if (e.data.type === "IDB") {
const openReq = indexedDB.open(testId);
const db = await new Promise((openResolve, openReject) => {
openReq.onerror = err => {
openReject(err);
};
openReq.onsuccess = ev => {
openResolve(ev.target.result);
};
});
const objectStore = db
.transaction([storeName], "readonly")
.objectStore(storeName);
const item = await new Promise((getResolve, getReject) => {
const getReq = objectStore.get("actual");
getReq.onerror = err => {
getReject(err);
};
getReq.onsuccess = ev => {
getResolve(ev.target.result);
};
});
actual = await item.text();
} else if (e.data.type === "FS") {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle(testId, { create: false });
const file = await fileHandle.getFile();
actual = await file.text();
} else {
throw Error("Unknown data type " + e.data.type);
}
if (actual.toString() === e.data.expected.toString()) {
messageSink.postMessage({ id: testId, message: testId }, messageTarget);
} else {
const description = "Found " + actual + ", expected " + e.data.expected;
messageSink.postMessage(
{ id: testId, message: description },
messageTarget
);
}
} catch (err) {
messageSink.postMessage(
{ id: testId, message: err.message },
messageTarget
);
}
});