54 lines
1.6 KiB
TypeScript
54 lines
1.6 KiB
TypeScript
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import assert from "node:assert/strict";
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import test from "node:test";
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import { RefreshQueue } from "../src/refresh";
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test("refreshes coalesce bursts and rerun after in-flight invalidation", async (t) => {
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const reads: (() => void)[] = [];
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const queue = new RefreshQueue(
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() =>
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new Promise<void>((resolve) => {
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reads.push(resolve);
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}),
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(error) => {
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throw error;
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},
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);
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t.after(() => queue.dispose());
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for (let i = 0; i < 100; i++) queue.invalidate();
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await waitFor(() => reads.length === 1);
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for (let i = 0; i < 100; i++) queue.invalidate();
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assert.equal(reads.length, 1);
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reads[0]?.();
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await waitFor(() => reads.length === 2);
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reads[1]?.();
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await new Promise((resolve) => setTimeout(resolve, 60));
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assert.equal(reads.length, 2);
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});
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test("disposed sessions never run queued refreshes and errors are reported", async () => {
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let calls = 0;
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const errors: unknown[] = [];
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const queue = new RefreshQueue(
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async () => {
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calls++;
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throw new Error("refresh failed");
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},
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(error) => errors.push(error),
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);
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queue.invalidate();
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await waitFor(() => errors.length === 1);
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assert.equal(calls, 1);
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queue.invalidate();
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queue.dispose();
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await new Promise((resolve) => setTimeout(resolve, 60));
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assert.equal(calls, 1);
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});
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async function waitFor(condition: () => boolean): Promise<void> {
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const deadline = Date.now() + 2000;
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while (!condition()) {
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if (Date.now() > deadline) throw new Error("Refresh queue did not make progress");
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await new Promise((resolve) => setTimeout(resolve, 5));
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}
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}
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