llmrouter/test/auswahl.test.ts

process.env.OPENROUTER_API_URL = "http://127.0.0.1:1";

import { describe, it, expect } from "bun:test";
import {
  MIN_OUTPUT,
  kandidatenBauen,
  billigsterUeberSchwelle,
  type Model,
} from "../src/openrouter-auswahl.ts";

const modelle: Model[] = [
  {
    id: "anthropic/claude-haiku-4.5",
    context_length: 131072,
    pricing: { prompt: "0.01", completion: "0.01" },
    supported_parameters: ["tools"],
    benchmarks: {
      artificial_analysis: { intelligence_index: 90 },
    },
    top_provider: { max_completion_tokens: 131072 },
  },
  {
    id: "inclusionai/ling-3.0-flash",
    context_length: 32768,
    pricing: { prompt: "0.001", completion: "0.001" },
    supported_parameters: ["tools"],
    benchmarks: {
      artificial_analysis: { intelligence_index: 50 },
    },
    top_provider: { max_completion_tokens: 32768 },
  },
  {
    id: "z-ai/glm-5.3-flash",
    context_length: 131072,
    pricing: { prompt: "0.002", completion: "0.002" },
    supported_parameters: ["tools"],
    benchmarks: {
      artificial_analysis: { intelligence_index: 55 },
    },
    top_provider: { max_completion_tokens: 131072 },
  },
  {
    id: "foo/ohne-angabe",
    context_length: 131072,
    pricing: { prompt: "0.0015", completion: "0.0015" },
    supported_parameters: ["tools"],
    benchmarks: {
      artificial_analysis: { intelligence_index: 60 },
    },
  },
];

describe("MIN_OUTPUT", () => {
  it("ist genau 65536", () => {
    expect(MIN_OUTPUT).toBe(65536);
  });
});

describe("kandidatenBauen", () => {
  it("fuellt maxOutput", () => {
    const { alle } = kandidatenBauen({ voll: modelle, konto: null });
    expect(alle.get("inclusionai/ling-3.0-flash")?.maxOutput).toBe(32768);
    expect(alle.get("anthropic/claude-haiku-4.5")?.maxOutput).toBe(131072);
    expect(alle.get("foo/ohne-angabe")?.maxOutput).toBe(0);
  });
});

describe("billigsterUeberSchwelle", () => {
  it("wahlt glm-5.3-flash und lehnt ling sowie foo ab", async () => {
    const { alle } = kandidatenBauen({ voll: modelle, konto: null });
    const abgelehnt: Array<{ id: string; grund: string }> = [];
    const ablehnen = (id: string, grund: string) => {
      abgelehnt.push({ id, grund });
    };
    const result = await billigsterUeberSchwelle(
      40,
      0,
      alle,
      undefined,
      ablehnen,
      new Map(),
      { varianten: [] },
    );
    expect(result.auswahl?.candidate.id).toBe("z-ai/glm-5.3-flash");
    const ling = abgelehnt.find((e) => e.id === "inclusionai/ling-3.0-flash");
    expect(ling).toBeDefined();
    expect(ling!.grund).toContain("max_output");
    expect(ling!.grund).toContain("32768");
    const foo = abgelehnt.find((e) => e.id === "foo/ohne-angabe");
    expect(foo).toBeDefined();
    expect(foo!.grund).toBe("max_output unbekannt");
  });
});

describe("Grenze maxOutput", () => {
  it("ein Kandidat mit maxOutput genau 65536 bleibt infrage", async () => {
    const grenzwert: Model[] = [
      {
        id: "bar/grenzwertig",
        context_length: 131072,
        pricing: { prompt: "0.001", completion: "0.001" },
        supported_parameters: ["tools"],
        benchmarks: {
          artificial_analysis: { intelligence_index: 70 },
        },
        top_provider: { max_completion_tokens: 65536 },
      },
    ];
    const { alle } = kandidatenBauen({ voll: grenzwert, konto: null });
    const abgelehnt: Array<{ id: string; grund: string }> = [];
    const ablehnen = (id: string, grund: string) => {
      abgelehnt.push({ id, grund });
    };
    const result = await billigsterUeberSchwelle(
      0,
      0,
      alle,
      undefined,
      ablehnen,
      new Map(),
      { varianten: [] },
    );
    expect(result.auswahl?.candidate.id).toBe("bar/grenzwertig");
    expect(abgelehnt).toHaveLength(0);
  });
});