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/**
* @description - Function will create a database with the supplied name
* and also create an object store with the specified name.
* If a db with the name dbName exists, this will raze the
* existing DB beforehand.
* @param {string} dbName
* @param {string} objectStoreName
* @param {testCase} t
* @returns {Promise} - A promise that resolves to an indexedDB open request
*/
function createDB(dbName, objectStoreName, t) {
return new Promise((resolve, reject) => {
const openRequest = indexedDB.open(dbName);
t.add_cleanup(() => {
indexedDB.deleteDatabase(dbName);
});
openRequest.onerror = () => {
reject(openRequest.error);
};
openRequest.onsuccess = () => {
resolve(openRequest.result);
};
openRequest.onupgradeneeded = event => {
openRequest.result.createObjectStore(objectStoreName);
};
});
}
/**
* @description - This function will wrap an IDBTransaction in a promise,
* resolving in the oncomplete() method and rejecting with the
* transaction error in the onabort() case.
* @param {IDBTransaction} transaction - The transaction to wrap in a promise.
* @returns {Promise} - A promise that resolves when the transaction is either
* aborted or completed.
*/
function transactionPromise(transaction) {
return new Promise((resolve, reject) => {
transaction.onabort = () => { reject(transaction.error); };
transaction.oncomplete = () => { resolve(); };
});
}
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