import { describe, expect, test } from "bun:test";
import { renderResources } from "../../lib/render";

describe("side-effect-free export rendering", () => {
  test("resolves build images and renders locally without provider calls", async () => {
    const paths: string[] = [];
    const resources = await renderResources(
      "shop",
      { services: { web: { build: "." } } },
      process.cwd(),
      {
        request: async <T>(path: string) => {
          paths.push(path);
          return { reference: "registry/web@sha256:immutable" } as T;
        },
      },
    );
    const deployment = resources.find(
      (resource) => resource.kind === "Deployment",
    );
    expect(paths).toEqual(["/images/resolve"]);
    expect((deployment as any)?.spec?.template.spec.containers[0].image).toBe(
      "registry/web@sha256:immutable",
    );
  });

  test("clearly rejects exports requiring generated credentials", async () => {
    await expect(
      renderResources("shop", {
        services: { web: { image: "app", volumes: ["postgresql:app"] } },
      }),
    ).rejects.toThrow("Export is side-effect-free");
  });
});