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OmniRoute/open-sse/services/__tests__/tierResolver.test.ts

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/**
* Unit tests for TierResolver (Task 13)
* Tests: classifyTier, setTierConfig, clearTierCache, getTierStats, classifyTiers
*/
import { describe, it, expect, beforeEach } from "vitest";
import {
classifyTier,
setTierConfig,
clearTierCache,
getTierStats,
classifyTiers,
} from "../tierResolver.ts";
import { PROVIDER_TIER } from "../tierTypes.ts";
import {
DEFAULT_TIER_CONFIG,
LEGACY_FREE_PROVIDERS,
deriveNoAuthFreeProviders,
} from "../tierConfig.ts";
import { NOAUTH_PROVIDERS } from "@/shared/constants/providers.ts";
describe("TierResolver", () => {
// Reset cache between tests
beforeEach(() => clearTierCache());
describe("classifyTier - free providers", () => {
it("classifies Kiro as free", () => {
const result = classifyTier("kiro", "claude-sonnet-4.5");
expect(result.tier).toBe(PROVIDER_TIER.FREE);
expect(result.hasFreeTier).toBe(true);
});
it("classifies Qoder as free", () => {
const result = classifyTier("qoder", "kimi-k2-thinking");
expect(result.tier).toBe(PROVIDER_TIER.FREE);
expect(result.hasFreeTier).toBe(true);
});
it("classifies Pollinations as free", () => {
const result = classifyTier("pollinations", "gpt-5");
expect(result.tier).toBe(PROVIDER_TIER.FREE);
expect(result.hasFreeTier).toBe(true);
});
it("classifies LongCat as free", () => {
const result = classifyTier("longcat", "LongCat-2.0");
expect(result.tier).toBe(PROVIDER_TIER.FREE);
expect(result.hasFreeTier).toBe(true);
});
it("classifies Cloudflare AI as free", () => {
const result = classifyTier("cloudflare-ai", "llama-3.3-70b");
expect(result.tier).toBe(PROVIDER_TIER.FREE);
expect(result.hasFreeTier).toBe(true);
});
it("classifies NVIDIA NIM as free", () => {
const result = classifyTier("nvidia-nim", "llama-3.1-8b");
expect(result.tier).toBe(PROVIDER_TIER.FREE);
expect(result.hasFreeTier).toBe(true);
});
it("classifies Cerebras as free", () => {
const result = classifyTier("cerebras", "llama-3.1-70b");
expect(result.tier).toBe(PROVIDER_TIER.FREE);
expect(result.hasFreeTier).toBe(true);
});
it("classifies Groq as free", () => {
const result = classifyTier("groq", "llama-3.3-70b");
expect(result.tier).toBe(PROVIDER_TIER.FREE);
expect(result.hasFreeTier).toBe(true);
});
it("sets costPer1MInput to 0 for free providers", () => {
const result = classifyTier("kiro", "claude-sonnet-4.5");
expect(result.costPer1MInput).toBe(0);
expect(result.costPer1MOutput).toBe(0);
});
});
describe("classifyTier - cost-based classification", () => {
it("classifies DeepSeek as cheap ($0.27/M < $1.00/M)", () => {
const result = classifyTier("deepseek", "deepseek-chat");
expect(result.tier).toBe(PROVIDER_TIER.CHEAP);
expect(result.costPer1MInput).toBeLessThanOrEqual(1.0);
});
it("classifies GLM as cheap ($0.60/M < $1.00/M)", () => {
const result = classifyTier("glm", "glm-4.7");
expect(result.tier).toBe(PROVIDER_TIER.CHEAP);
expect(result.costPer1MInput).toBeLessThanOrEqual(1.0);
});
it("classifies MiniMax as cheap ($0.20/M < $1.00/M)", () => {
const result = classifyTier("minimax", "minimax-m2.1");
expect(result.tier).toBe(PROVIDER_TIER.CHEAP);
expect(result.costPer1MInput).toBeLessThanOrEqual(1.0);
});
it("classifies GPT-4o as premium ($2.50/M > $1.00/M)", () => {
const result = classifyTier("openai", "gpt-4o");
expect(result.tier).toBe(PROVIDER_TIER.PREMIUM);
expect(result.costPer1MInput).toBeGreaterThan(1.0);
});
it("classifies Claude Opus as premium ($15.00/M > $1.00/M)", () => {
const result = classifyTier("anthropic", "claude-opus-4-7");
expect(result.tier).toBe(PROVIDER_TIER.PREMIUM);
expect(result.costPer1MInput).toBeGreaterThan(1.0);
});
it("defaults unknown providers to premium", () => {
const result = classifyTier("unknown-provider", "unknown-model");
expect(result.tier).toBe(PROVIDER_TIER.PREMIUM);
expect(result.costPer1MInput).toBe(5.0); // default premium pricing
});
});
describe("classifyTier - config overrides", () => {
it("respects provider-level tier override", () => {
setTierConfig({ providerOverrides: [{ provider: "openai", tier: "cheap" }] });
const result = classifyTier("openai", "gpt-4o");
expect(result.tier).toBe(PROVIDER_TIER.CHEAP);
expect(result.reason.includes("override")).toBe(true);
});
it("respects model-level glob pattern override", () => {
setTierConfig({
modelOverrides: [{ provider: "openai", modelPattern: "gpt-4o-mini*", tier: "cheap" }],
});
const result = classifyTier("openai", "gpt-4o-mini-2024-07-18");
expect(result.tier).toBe(PROVIDER_TIER.CHEAP);
});
it("glob pattern gpt-4o-mini* matches gpt-4o-mini-2024-07-18", () => {
setTierConfig({
modelOverrides: [{ provider: "openai", modelPattern: "gpt-4o-mini*", tier: "cheap" }],
});
const result = classifyTier("openai", "gpt-4o-mini-2024-07-18");
expect(result.tier).toBe(PROVIDER_TIER.CHEAP);
});
it("config change invalidates cache", () => {
const before = classifyTier("openai", "gpt-4o");
expect(before.tier).toBe(PROVIDER_TIER.PREMIUM);
setTierConfig({ providerOverrides: [{ provider: "openai", tier: "free" }] });
const after = classifyTier("openai", "gpt-4o");
expect(after.tier).toBe(PROVIDER_TIER.FREE);
});
});
describe("classifyTier - caching", () => {
it("returns cached result on second call", () => {
classifyTier("openai", "gpt-4o");
const t0 = performance.now();
classifyTier("openai", "gpt-4o");
const elapsed = performance.now() - t0;
expect(elapsed, "cache hit should be <0.1ms").toBeLessThan(0.1);
});
it("clearTierCache() forces re-classification", () => {
const first = classifyTier("openai", "gpt-4o");
clearTierCache();
const second = classifyTier("openai", "gpt-4o");
expect(first.tier).toBe(second.tier);
expect(second.costPer1MInput).toBeGreaterThan(0);
});
});
describe("classifyTiers - batch operation", () => {
it("classifies 10 targets correctly", () => {
clearTierCache();
setTierConfig({ providerOverrides: [] }); // clear any config overrides from prior tests
const targets = [
{ provider: "kiro", model: "claude-sonnet-4.5" },
{ provider: "openai", model: "gpt-4o" },
{ provider: "deepseek", model: "deepseek-chat" },
{ provider: "glm", model: "glm-4.7" },
{ provider: "minimax", model: "minimax-m2.1" },
{ provider: "anthropic", model: "claude-opus-4-7" },
{ provider: "groq", model: "llama-3.3-70b" },
{ provider: "qoder", model: "kimi-k2-thinking" },
{ provider: "unknown", model: "unknown-model" },
];
const results = classifyTiers(targets);
expect(results.length).toBe(9);
expect(results[0].tier).toBe(PROVIDER_TIER.FREE); // kiro
expect(results[1].tier).toBe(PROVIDER_TIER.PREMIUM); // openai gpt-4o ($2.50/M)
expect(results[2].tier).toBe(PROVIDER_TIER.CHEAP); // deepseek
expect(results[8].tier).toBe(PROVIDER_TIER.PREMIUM); // unknown
});
it("uses cache for repeated models", () => {
clearTierCache();
const results = classifyTiers([
{ provider: "openai", model: "gpt-4o" },
{ provider: "openai", model: "gpt-4o" },
]);
// Observable effect of the cache: the duplicate resolves to the same tier and only
// ONE entry is memoized (getTierStats counts cache entries, not classify calls).
expect(results).toHaveLength(2);
expect(results[0].tier).toBe(results[1].tier);
const stats = getTierStats();
expect(stats.free + stats.cheap + stats.premium).toBe(1);
});
});
describe("getTierStats", () => {
it("returns distribution after classifications", () => {
clearTierCache();
classifyTier("kiro", "claude-sonnet-4.5");
classifyTier("deepseek", "deepseek-chat");
const stats = getTierStats();
expect(stats[PROVIDER_TIER.FREE]).toBeGreaterThanOrEqual(1);
expect(stats[PROVIDER_TIER.CHEAP]).toBeGreaterThanOrEqual(1);
});
});
describe("freeProviders from NOAUTH_PROVIDERS (#4517)", () => {
beforeEach(() => clearTierCache());
it("LEGACY_FREE_PROVIDERS keeps the historical explicit list", () => {
for (const id of [
"kiro",
"qoder",
"pollinations",
"longcat",
"cloudflare-ai",
"nvidia-nim",
"cerebras",
"groq",
]) {
expect(LEGACY_FREE_PROVIDERS.includes(id), `expected ${id} in LEGACY_FREE_PROVIDERS`).toBe(
true
);
}
});
it("deriveNoAuthFreeProviders includes all chat-tier noAuth providers", () => {
const derived = deriveNoAuthFreeProviders();
// opencode + mimocode are the ones the bug report called out
expect(derived.includes("opencode"), "opencode should be in derived noAuth-free list").toBe(
true
);
expect(derived.includes("mimocode"), "mimocode should be in derived noAuth-free list").toBe(
true
);
expect(derived.includes("duckduckgo-web")).toBe(true);
});
it("deriveNoAuthFreeProviders excludes non-LLM noAuth providers", () => {
const derived = deriveNoAuthFreeProviders();
expect(
derived.includes("veoaifree-web"),
"veoaifree-web (serviceKinds: video) must not be classified as chat-free"
).toBe(false);
});
it("DEFAULT_TIER_CONFIG.freeProviders contains the union of legacy + noAuth-derived", () => {
const expected = new Set([...LEGACY_FREE_PROVIDERS, ...deriveNoAuthFreeProviders()]);
const actual = new Set(DEFAULT_TIER_CONFIG.freeProviders);
expect(actual).toEqual(expected);
});
it("classifyTier classifies opencode/big-pickle as free via noAuth derivation", () => {
// No provider override, no cost-based match (big-pickle has no KNOWN_MODEL_PRICING row).
// The fix is that 'opencode' is now in freeProviders.
const result = classifyTier("opencode", "big-pickle");
expect(result.tier).toBe(PROVIDER_TIER.FREE);
expect(result.hasFreeTier).toBe(true);
});
it("classifyTier classifies mimocode/mimo-auto as free via noAuth derivation", () => {
const result = classifyTier("mimocode", "mimo-auto");
expect(result.tier).toBe(PROVIDER_TIER.FREE);
expect(result.hasFreeTier).toBe(true);
});
it("classifyTier still returns cheap for paid glm-5.1 (no regression)", () => {
// glm-5.1 is not in freeProviders, costs $0.50/M → cheap tier.
// Make sure the new noAuth derivation didn't accidentally pull it into free.
const result = classifyTier("opencode-go", "glm-5.1");
expect(result.tier).toBe(PROVIDER_TIER.CHEAP);
});
it("userConfig.freeProviders is merged on top of the noAuth-derived list", () => {
// Re-merge with a new free provider (e.g. local-llama) and confirm it's added.
setTierConfig({ freeProviders: ["local-llama"] });
const result = classifyTier("local-llama", "anything");
expect(result.tier).toBe(PROVIDER_TIER.FREE);
clearTierCache();
});
});
});