Files
llama-watch/tests/inflight-tracker.test.ts
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import assert from "node:assert/strict";
import { test } from "node:test";
import { InflightTracker, type FeedEvent } from "../src/lib/inflight-tracker";
test("snapshot rebuilds counts for all in-flight requests", () => {
const tracker = new InflightTracker();
tracker.apply({
type: "inflight",
operation: "snapshot",
requests: [
{ model: "A", id: "1" },
{ model: "A", id: "2" },
{ model: "B", id: "3" },
],
});
assert.equal(tracker.count("A"), 2);
assert.equal(tracker.count("B"), 1);
assert.equal(tracker.count("C"), 0);
});
test("add (upsert) is idempotent per request id", () => {
const tracker = new InflightTracker();
tracker.apply({ type: "inflight", operation: "add", requests: [{ model: "A", id: "1" }] });
tracker.apply({ type: "inflight", operation: "add", requests: [{ model: "A", id: "1" }] });
tracker.apply({ type: "inflight", operation: "add", requests: [{ model: "A", id: "2" }] });
assert.equal(tracker.count("A"), 2);
});
test("remove is id-based and decrements the matching request", () => {
const tracker = new InflightTracker();
tracker.apply({ type: "inflight", operation: "add", requests: [{ model: "A", id: "1" }, { model: "B", id: "2" }] });
assert.equal(tracker.count("A"), 1);
assert.equal(tracker.count("B"), 1);
tracker.apply({ type: "inflight", operation: "remove", id: "1" });
assert.equal(tracker.count("A"), 0);
assert.equal(tracker.count("B"), 1);
tracker.apply({ type: "inflight", operation: "remove", id: "999" });
assert.equal(tracker.count("B"), 1);
});
test("snapshot replaces prior in-flight state", () => {
const tracker = new InflightTracker();
tracker.apply({ type: "inflight", operation: "add", requests: [{ model: "A", id: "1" }] });
tracker.apply({ type: "inflight", operation: "snapshot", requests: [{ model: "A", id: "2" }] });
assert.equal(tracker.count("A"), 1);
assert.equal(tracker.count("B"), 0);
});
test("modelStatus normalizes states", () => {
const tracker = new InflightTracker();
tracker.apply({
type: "modelStatus",
models: [
{ id: "A", state: "ready" },
{ id: "B", state: "loading" },
{ id: "C", state: "stopped" },
{ id: "D", state: "weird" },
],
});
assert.equal(tracker.state("A"), "ready");
assert.equal(tracker.state("B"), "loading");
assert.equal(tracker.state("C"), "stopped");
assert.equal(tracker.state("D"), "stopped");
assert.equal(tracker.state("missing"), undefined);
});
test("total sums in-flight requests across all models", () => {
const tracker = new InflightTracker();
assert.equal(tracker.total(), 0);
tracker.apply({ type: "inflight", operation: "add", requests: [{ model: "A", id: "1" }, { model: "B", id: "2" }] });
tracker.apply({ type: "inflight", operation: "add", requests: [{ model: "A", id: "3" }] });
assert.equal(tracker.total(), 3);
tracker.apply({ type: "inflight", operation: "remove", id: "1" });
assert.equal(tracker.total(), 2);
});