import { describe, expect, it } from "vitest";
import { buildODataParams, extractNextLink } from "../src/client/odata";

describe("OData helpers", () => {
  it("builds SAP Service Layer OData query parameters", () => {
    expect(
      buildODataParams({
        select: ["CardCode", "CardName"],
        filter: "CardType eq 'cCustomer'",
        top: 25,
        skip: 50,
        orderby: ["CardName asc", "CardCode desc"]
      })
    ).toEqual({
      $select: "CardCode,CardName",
      $filter: "CardType eq 'cCustomer'",
      $top: 25,
      $skip: 50,
      $orderby: "CardName asc,CardCode desc"
    });
  });

  it("supports old and new nextLink field names", () => {
    expect(extractNextLink({ "@odata.nextLink": "Items?$skip=20" })).toBe("Items?$skip=20");
    expect(extractNextLink({ "odata.nextLink": "Items?$skip=40" })).toBe("Items?$skip=40");
  });
});