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denoland-deno/core/shared_queue_test.js

62 lines
1.2 KiB
JavaScript

// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
function assert(cond) {
if (!cond) {
throw Error("assert");
}
}
function main() {
const q = Deno.core.sharedQueue;
let h = q.head();
assert(h > 0);
let r = new Uint8Array([1, 2, 3, 4, 5]);
let len = r.byteLength + h;
assert(q.push(r));
assert(q.head() == len);
r = new Uint8Array([6, 7]);
assert(q.push(r));
r = new Uint8Array([8, 9, 10, 11]);
assert(q.push(r));
assert(q.numRecords() == 3);
assert(q.size() == 3);
r = q.shift();
assert(r.byteLength == 5);
assert(r[0] == 1);
assert(r[1] == 2);
assert(r[2] == 3);
assert(r[3] == 4);
assert(r[4] == 5);
assert(q.numRecords() == 3);
assert(q.size() == 2);
r = q.shift();
assert(r.byteLength == 2);
assert(r[0] == 6);
assert(r[1] == 7);
assert(q.numRecords() == 3);
assert(q.size() == 1);
r = q.shift();
assert(r.byteLength == 4);
assert(r[0] == 8);
assert(r[1] == 9);
assert(r[2] == 10);
assert(r[3] == 11);
assert(q.numRecords() == 0);
assert(q.size() == 0);
assert(q.shift() == null);
assert(q.shift() == null);
assert(q.numRecords() == 0);
assert(q.size() == 0);
Deno.core.print("shared_queue_test.js ok\n");
}
main();