import { describe, expect, it } from "vitest";import {  DEFAULT_MODEL,  DEFAULT_MODEL_BY_PROVIDER,  DEFAULT_REASONING_EFFORT_BY_PROVIDER,  MODEL_OPTIONS,  MODEL_OPTIONS_BY_PROVIDER,  REASONING_EFFORT_OPTIONS_BY_PROVIDER,} from "@t3tools/contracts"; import {  getDefaultModel,  getDefaultReasoningEffort,  getModelOptions,  getReasoningEffortOptions,  inferProviderForModel,  normalizeModelSlug,  resolveModelSlug,  resolveModelSlugForProvider,} from "./model"; describe("normalizeModelSlug", () => {  it("maps known aliases to canonical slugs", () => {    expect(normalizeModelSlug("5.3")).toBe("gpt-5.3-codex");    expect(normalizeModelSlug("gpt-5.3")).toBe("gpt-5.3-codex");  });   it("returns null for empty or missing values", () => {    expect(normalizeModelSlug("")).toBeNull();    expect(normalizeModelSlug("   ")).toBeNull();    expect(normalizeModelSlug(null)).toBeNull();    expect(normalizeModelSlug(undefined)).toBeNull();  });   it("preserves non-aliased model slugs", () => {    expect(normalizeModelSlug("gpt-5.2")).toBe("gpt-5.2");    expect(normalizeModelSlug("gpt-5.2-codex")).toBe("gpt-5.2-codex");  });   it("does not leak prototype properties as aliases", () => {    expect(normalizeModelSlug("toString")).toBe("toString");    expect(normalizeModelSlug("constructor")).toBe("constructor");  });   it("uses provider-specific aliases", () => {    expect(normalizeModelSlug("sonnet", "claudeAgent")).toBe("claude-sonnet-4-6");    expect(normalizeModelSlug("opus-4.6", "claudeAgent")).toBe("claude-opus-4-6");    expect(normalizeModelSlug("claude-haiku-4-5-20251001", "claudeAgent")).toBe("claude-haiku-4-5");  });}); describe("resolveModelSlug", () => {  it("returns default only when the model is missing", () => {    expect(resolveModelSlug(undefined)).toBe(DEFAULT_MODEL);    expect(resolveModelSlug(null)).toBe(DEFAULT_MODEL);  });   it("preserves unknown custom models", () => {    expect(resolveModelSlug("gpt-4.1")).toBe(DEFAULT_MODEL);    expect(resolveModelSlug("custom/internal-model")).toBe(DEFAULT_MODEL);  });   it("resolves only supported model options", () => {    for (const model of MODEL_OPTIONS) {      expect(resolveModelSlug(model.slug)).toBe(model.slug);    }  });   it("supports provider-aware resolution", () => {    expect(resolveModelSlugForProvider("claudeAgent", undefined)).toBe(      DEFAULT_MODEL_BY_PROVIDER.claudeAgent,    );    expect(resolveModelSlugForProvider("claudeAgent", "sonnet")).toBe("claude-sonnet-4-6");    expect(resolveModelSlugForProvider("claudeAgent", "gpt-5.3-codex")).toBe(      DEFAULT_MODEL_BY_PROVIDER.claudeAgent,    );  });   it("keeps codex defaults for backward compatibility", () => {    expect(getDefaultModel()).toBe(DEFAULT_MODEL);    expect(getModelOptions()).toEqual(MODEL_OPTIONS);    expect(getModelOptions("claudeAgent")).toEqual(MODEL_OPTIONS_BY_PROVIDER.claudeAgent);  });}); describe("getReasoningEffortOptions", () => {  it("returns codex reasoning options for codex", () => {    expect(getReasoningEffortOptions("codex")).toEqual(REASONING_EFFORT_OPTIONS_BY_PROVIDER.codex);  });   it("returns no reasoning options for claudeAgent", () => {    expect(getReasoningEffortOptions("claudeAgent")).toEqual([]);  });}); describe("inferProviderForModel", () => {  it("detects known provider model slugs", () => {    expect(inferProviderForModel("gpt-5.3-codex")).toBe("codex");    expect(inferProviderForModel("claude-sonnet-4-6")).toBe("claudeAgent");    expect(inferProviderForModel("sonnet")).toBe("claudeAgent");  });   it("falls back when the model is unknown", () => {    expect(inferProviderForModel("custom/internal-model")).toBe("codex");    expect(inferProviderForModel("custom/internal-model", "claudeAgent")).toBe("claudeAgent");  });   it("treats claude-prefixed custom slugs as claude", () => {    expect(inferProviderForModel("claude-custom-internal")).toBe("claudeAgent");  });}); describe("getDefaultReasoningEffort", () => {  it("returns provider-scoped defaults", () => {    expect(getDefaultReasoningEffort("codex")).toBe(DEFAULT_REASONING_EFFORT_BY_PROVIDER.codex);    expect(getDefaultReasoningEffort("claudeAgent")).toBe(      DEFAULT_REASONING_EFFORT_BY_PROVIDER.claudeAgent,    );  });});