import { describe, expect, it } from "@effect/vitest";import * as Effect from "effect/Effect";import * as EffectAcpErrors from "effect-acp/errors"; import {  applyGrokAcpModelSelection,  buildGrokAcpSpawnInput,  resolveGrokAcpBaseModelId,} from "./GrokAcpSupport.ts"; describe("resolveGrokAcpBaseModelId", () => {  it("normalizes empty and custom Grok model ids", () => {    expect(resolveGrokAcpBaseModelId(undefined)).toBe("grok-build");    expect(resolveGrokAcpBaseModelId("   ")).toBe("grok-build");    expect(resolveGrokAcpBaseModelId("  grok-test-custom-model  ")).toBe("grok-test-custom-model");  });}); describe("buildGrokAcpSpawnInput", () => {  it("passes the T3 Code referrer through Grok OAuth env", () => {    const spawn = buildGrokAcpSpawnInput({ binaryPath: "/usr/local/bin/grok" }, "/tmp/project", {      XAI_API_KEY: "secret",      GROK_OAUTH2_REFERRER: "other-client",    });     expect(spawn).toEqual({      command: "/usr/local/bin/grok",      args: ["agent", "stdio"],      cwd: "/tmp/project",      env: {        XAI_API_KEY: "secret",        GROK_OAUTH2_REFERRER: "t3code",      },    });  });}); describe("applyGrokAcpModelSelection", () => {  const makeRecordingRuntime = (failure?: EffectAcpErrors.AcpError) => {    const modelCalls: Array<string> = [];    const runtime = {      setSessionModel: (modelId: string) =>        Effect.gen(function* () {          modelCalls.push(modelId);          if (failure) return yield* failure;          return {};        }),    };    return { runtime, modelCalls };  };   it.effect("calls session/set_model when the requested model differs from current", () =>    Effect.gen(function* () {      const { runtime, modelCalls } = makeRecordingRuntime();      const result = yield* applyGrokAcpModelSelection({        runtime,        currentModelId: "grok-build",        requestedModelId: "grok-mock-alt",        mapError: (cause) => cause.message,      });      expect(modelCalls).toEqual(["grok-mock-alt"]);      expect(result).toBe("grok-mock-alt");    }),  );   it.effect("skips set_model when requested matches current", () =>    Effect.gen(function* () {      const { runtime, modelCalls } = makeRecordingRuntime();      const result = yield* applyGrokAcpModelSelection({        runtime,        currentModelId: "grok-build",        requestedModelId: "grok-build",        mapError: (cause) => cause.message,      });      expect(modelCalls).toEqual([]);      expect(result).toBe("grok-build");    }),  );   it.effect("skips set_model when no model is requested", () =>    Effect.gen(function* () {      const { runtime, modelCalls } = makeRecordingRuntime();      const result = yield* applyGrokAcpModelSelection({        runtime,        currentModelId: "grok-build",        requestedModelId: undefined,        mapError: (cause) => cause.message,      });      expect(modelCalls).toEqual([]);      expect(result).toBe("grok-build");    }),  );   it.effect("propagates session/set_model failures via mapError", () =>    Effect.gen(function* () {      const failure = EffectAcpErrors.AcpRequestError.invalidParams("session id not known");      const { runtime } = makeRecordingRuntime(failure);      const error = yield* Effect.flip(        applyGrokAcpModelSelection({          runtime,          currentModelId: "grok-build",          requestedModelId: "grok-mock-alt",          mapError: (cause) => cause.message,        }),      );      expect(error).toBe(failure.message);    }),  );});