import { describe, expect, it } from "vitest";

import {
  hasDeploymentChanged,
  normalizeDeploymentId,
} from "./version";

describe("deployment version comparison", () => {
  it("normalizes identifiers before comparing them", () => {
    expect(normalizeDeploymentId("  release-2  ")).toBe("release-2");
    expect(normalizeDeploymentId("   ")).toBeNull();
    expect(hasDeploymentChanged("release-1", " release-2 ")).toBe(true);
  });

  it("does not announce the initial or unchanged deployment", () => {
    expect(hasDeploymentChanged(null, "release-2")).toBe(false);
    expect(hasDeploymentChanged("release-2", "release-2")).toBe(false);
    expect(hasDeploymentChanged("release-2", "")).toBe(false);
  });
});