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feat: add root subscription api

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This commit is contained in:
Justin Starry
2020-03-27 22:22:53 +08:00
committed by Michael Vines
parent 3379e8cd46
commit a2c6c991b8
4 changed files with 154 additions and 19 deletions
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56
web3.js/test/connection.test.js
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@ -1417,30 +1417,54 @@ test('slot notification', async () => {
const connection = new Connection(url, 'recent');
// let notified = false;
let notified = false;
const subscriptionId = connection.onSlotChange(slotInfo => {
expect(slotInfo.parent).toBeDefined();
expect(slotInfo.slot).toBeDefined();
expect(slotInfo.root).toBeDefined();
expect(slotInfo.slot).toBeGreaterThan(slotInfo.parent);
expect(slotInfo.slot).toBeGreaterThanOrEqual(slotInfo.root);
// notified = true;
notified = true;
});
//
// FIXME: enable this check when slotNotification is live
//
// // Wait for mockCallback to receive a call
// let i = 0;
// while (!notified) {
// //for (;;) {
// if (++i === 30) {
// throw new Error('Slot change notification not observed');
// }
// // Sleep for a 1/4 of a slot, notifications only occur after a block is
// // processed
// await sleep((250 * DEFAULT_TICKS_PER_SLOT) / NUM_TICKS_PER_SECOND);
// }
// Wait for mockCallback to receive a call
let i = 0;
while (!notified) {
if (++i === 30) {
throw new Error('Slot change notification not observed');
}
// Sleep for a 1/4 of a slot, notifications only occur after a block is
// processed
await sleep((250 * DEFAULT_TICKS_PER_SLOT) / NUM_TICKS_PER_SECOND);
}
await connection.removeSlotChangeListener(subscriptionId);
});
test('root notification', async () => {
if (mockRpcEnabled) {
console.log('non-live test skipped');
return;
}
const connection = new Connection(url, 'recent');
let roots = [];
const subscriptionId = connection.onRootChange(root => {
roots.push(root);
});
// Wait for mockCallback to receive a call
let i = 0;
while (roots.length < 2) {
if (++i === 30) {
throw new Error('Root change notification not observed');
}
// Sleep for a 1/4 of a slot, notifications only occur after a block is
// processed
await sleep((250 * DEFAULT_TICKS_PER_SLOT) / NUM_TICKS_PER_SECOND);
}
expect(roots[1]).toBeGreaterThan(roots[0]);
await connection.removeRootChangeListener(subscriptionId);
});