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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
import { assert, assertEquals } from "./test_util.ts";
Deno.test(async function metrics() {
// Write to stdout to ensure a "data" message gets sent instead of just
// control messages.
const dataMsg = new Uint8Array([13, 13, 13]); // "\r\r\r",
await Deno.stdout.write(dataMsg);
// WARNING: bytesReceived & bytesSentControl are now always zero
// following https://github.com/denoland/deno/pull/9843
const m1 = Deno.metrics();
assert(m1.opsDispatched > 0);
assert(m1.opsCompleted > 0);
assert(m1.bytesSentControl === 0);
assert(m1.bytesSentData === 0);
assert(m1.bytesReceived === 0);
const m1OpWrite = m1.ops["op_write"];
assert(m1OpWrite.opsDispatchedAsync > 0);
assert(m1OpWrite.opsCompletedAsync > 0);
assert(m1OpWrite.bytesSentControl === 0);
assert(m1OpWrite.bytesSentData >= 0);
assert(m1OpWrite.bytesReceived === 0);
await Deno.stdout.write(dataMsg);
const m2 = Deno.metrics();
assert(m2.opsDispatchedAsync > m1.opsDispatchedAsync);
assert(m2.opsCompletedAsync > m1.opsCompletedAsync);
assert(m2.bytesSentControl === m1.bytesSentControl);
assert(m2.bytesSentData === 0);
assert(m2.bytesReceived === m1.bytesReceived);
const m2OpWrite = m2.ops["op_write"];
assert(m2OpWrite.opsDispatchedAsync > m1OpWrite.opsDispatchedAsync);
assert(m2OpWrite.opsCompletedAsync > m1OpWrite.opsCompletedAsync);
assert(m2OpWrite.bytesSentControl === m1OpWrite.bytesSentControl);
assert(m2OpWrite.bytesSentData === 0);
assert(m2OpWrite.bytesReceived === m1OpWrite.bytesReceived);
});
Deno.test(
{ permissions: { write: true } },
function metricsUpdatedIfNoResponseSync() {
const filename = Deno.makeTempDirSync() + "/test.txt";
const data = new Uint8Array([41, 42, 43]);
Deno.writeFileSync(filename, data, { mode: 0o666 });
const metrics = Deno.metrics();
assert(metrics.opsDispatched === metrics.opsCompleted);
assert(metrics.opsDispatchedSync === metrics.opsCompletedSync);
},
);
Deno.test(
{ permissions: { write: true } },
async function metricsUpdatedIfNoResponseAsync() {
const filename = Deno.makeTempDirSync() + "/test.txt";
const data = new Uint8Array([41, 42, 43]);
await Deno.writeFile(filename, data, { mode: 0o666 });
const metrics = Deno.metrics();
assert(metrics.opsDispatched === metrics.opsCompleted);
assert(metrics.opsDispatchedSync === metrics.opsCompletedSync);
assert(metrics.opsDispatchedAsync === metrics.opsCompletedAsync);
},
);
// Test that ops from extensions have metrics (via OpMiddleware)
Deno.test(function metricsForOpCrates() {
const _ = new URL("https://deno.land");
const m1 = Deno.metrics().ops["op_url_parse"];
assert(m1.opsDispatched > 0);
assert(m1.opsCompleted > 0);
});
// Test that op_names == Objects.keys(Deno[Deno.internal].core.ops)
// since building the per-op metrics depends on op_names being complete
Deno.test(function opNamesMatch() {
// @ts-ignore: Deno[Deno.internal].core allowed
const ops = Object.keys(Deno[Deno.internal].core.ops);
// @ts-ignore: Deno[Deno.internal].core allowed
ops.concat(Object.keys(Deno[Deno.internal].core.asyncOps));
assertEquals(
// @ts-ignore: Deno[Deno.internal].core allowed
Deno[Deno.internal].core.opNames().sort(),
ops.sort().filter((name) => name !== "asyncOpsInfo"),
);
});
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