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Make DeviceList test pass

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Includes making saveIfDirty() return a promise in case you care
about when changes got saved (which the test does).
This commit is contained in:
David Baker
2018-01-15 15:21:39 +00:00
parent 36d7d33afc
commit 110f43a246
2 changed files with 26 additions and 13 deletions
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13
src/crypto/DeviceList.js
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@@ -91,6 +91,8 @@ export default class DeviceList {
// Timeout for a scheduled save
this._saveTimer = null;
// Promise resolved when device data is saved
this._savePromise = null;
}
/**
@@ -141,14 +143,18 @@ export default class DeviceList {
/**
* Save the device tracking state to storage, if any changes are
* pending other than updating the sync token
*
* @return {Promise<bool>} True is the data was saved, false if
* it was not (eg. because no changes were pending)
*/
async saveIfDirty() {
if (!this._dirty) return;
if (!this._dirty) return Promise.resolve(False);
if (this._saveTimer === null) {
this._saveTimer = setTimeout(() => {
console.log('Saving device tracking data...');
this._saveTimer = null;
this._cryptoStore.doTxn(
this._savePromise = this._cryptoStore.doTxn(
'readwrite', [IndexedDBCryptoStore.STORE_DEVICE_DATA], (txn) => {
this._cryptoStore.storeEndToEndDeviceData({
devices: this._devices,
@@ -158,8 +164,11 @@ export default class DeviceList {
},
).then(() => {
this._dirty = false;
return True;
});
}, 500);
} else {
return this._savePromise;
}
}