import { describe, expect, it } from "bun:test";

import { buildBackendContextHeaders } from "../../src/auth/backendContextHeaders.js";

describe("buildBackendContextHeaders", () => {
  it("forwards authenticated project and trace context to the backend", () => {
    expect(
      buildBackendContextHeaders({
        accessToken: "access-token-1",
        projectId: "project-id-1",
        traceId: "trace-id-1",
      }),
    ).toEqual({
      Accept: "application/json",
      "Content-Type": "application/json",
      Authorization: "Bearer access-token-1",
      "X-Project-Id": "project-id-1",
      "X-Trace-Id": "trace-id-1",
    });
  });

  it("omits optional authentication and project headers when unavailable", () => {
    expect(buildBackendContextHeaders({ traceId: "trace-id-2" })).toEqual({
      Accept: "application/json",
      "Content-Type": "application/json",
      "X-Trace-Id": "trace-id-2",
    });
  });
});