108 lines
3.9 KiB
TypeScript
108 lines
3.9 KiB
TypeScript
/**
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* tests/unit/complexity-router.test.ts
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*
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* 2026 strategy: request-complexity classification → recommended tier, with an
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* explicit tool-use escalation. Validates the classifier facade over the
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* existing specificity detector.
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*/
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import test from "node:test";
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import assert from "node:assert/strict";
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import {
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classifyRequestComplexity,
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escalateTier,
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buildComplexityRoutingHint,
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} from "../../open-sse/services/autoCombo/complexityRouter.ts";
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const NOOP_LOG = { info: () => {} };
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function modelTargets(): Parameters<typeof buildComplexityRoutingHint>[0] {
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return [
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{
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kind: "model",
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provider: "openai",
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model: "gpt-4o-mini",
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modelStr: "openai/gpt-4o-mini",
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executionKey: "k1",
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stepId: "s1",
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},
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] as unknown as Parameters<typeof buildComplexityRoutingHint>[0];
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}
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test("escalateTier — raises to the floor, never lowers", () => {
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assert.equal(escalateTier("free", "cheap"), "cheap");
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assert.equal(escalateTier("free", "premium"), "premium");
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assert.equal(escalateTier("premium", "cheap"), "premium");
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assert.equal(escalateTier("cheap", "free"), "cheap");
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assert.equal(escalateTier("cheap", "cheap"), "cheap");
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});
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test("classifyRequestComplexity — a trivial prompt stays cheap/free with no tool signal", () => {
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const c = classifyRequestComplexity({ messages: [{ role: "user", content: "hi there" }] });
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assert.equal(c.hasToolUse, false);
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assert.equal(c.recommendedTier, "free");
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assert.ok(["trivial", "simple"].includes(c.level), `expected low level, got ${c.level}`);
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});
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test("classifyRequestComplexity — a hard, multi-step coding+reasoning prompt scores higher", () => {
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const trivial = classifyRequestComplexity({ messages: [{ role: "user", content: "hi" }] });
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const hard = classifyRequestComplexity({
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messages: [
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{
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role: "user",
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content:
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"First, analyze this TypeScript module for race conditions:\n" +
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"```ts\nasync function f(){ /* ... */ }\n```\n" +
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"Then, step by step, prove the time complexity is O(n log n), " +
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"derive the recurrence relation, and refactor it to remove the data race. " +
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"Finally, explain the trade-offs of each approach in depth.",
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},
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],
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});
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assert.ok(hard.score > trivial.score, `hard (${hard.score}) must exceed trivial (${trivial.score})`);
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});
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test("classifyRequestComplexity — tool schemas escalate the tier above free", () => {
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const c = classifyRequestComplexity({
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messages: [{ role: "user", content: "weather?" }],
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tools: [
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{
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function: {
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name: "get_weather",
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description: "Get the weather",
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parameters: { type: "object", properties: { city: { type: "string" } } },
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},
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},
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],
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});
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assert.equal(c.hasToolUse, true);
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assert.notEqual(c.recommendedTier, "free", "tool-using requests must not route to the free tier");
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});
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test("buildComplexityRoutingHint — a tool-using request floors the hint tier above free", () => {
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const hint = buildComplexityRoutingHint(
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modelTargets(),
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{
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messages: [{ role: "user", content: "weather?" }],
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tools: [{ function: { name: "get_weather", description: "Get the weather", parameters: {} } }],
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},
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NOOP_LOG
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);
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assert.ok(hint, "expected a non-null hint when complexity routing builds successfully");
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if (!hint) return;
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assert.notEqual(
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hint.recommendedMinTier,
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"free",
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"tool-use must floor the recommended tier at cheap (escalation applied)"
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);
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});
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test("buildComplexityRoutingHint — a null body is safe and still builds a tier-neutral hint", () => {
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const hint = buildComplexityRoutingHint(modelTargets(), null, NOOP_LOG);
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assert.ok(hint, "a null body must not throw — messages default to [] and a hint is built");
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if (!hint) return;
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assert.ok(
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["free", "cheap", "premium"].includes(hint.recommendedMinTier),
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`unexpected tier ${hint.recommendedMinTier}`
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);
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});
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