import { describe, expect, it } from "vitest";
import { isRepUser } from "./rep-visibility";

describe("isRepUser", () => {
  it("returns true when user_type includes REP", () => {
    expect(isRepUser(["REP"])).toBe(true);
  });

  it("is case-insensitive", () => {
    expect(isRepUser(["rep"])).toBe(true);
  });

  it("returns true when REP is combined with other roles", () => {
    expect(isRepUser(["BUYER", "REP"])).toBe(true);
  });

  it("returns false for other roles", () => {
    expect(isRepUser(["BUYER"])).toBe(false);
    expect(isRepUser(["ADMIN", "QUOTER"])).toBe(false);
  });

  it("returns false for null, undefined, or non-array input", () => {
    expect(isRepUser(null)).toBe(false);
    expect(isRepUser(undefined)).toBe(false);
    expect(isRepUser("REP")).toBe(false);
  });

  it("returns false for an empty array", () => {
    expect(isRepUser([])).toBe(false);
  });
});