expria-backend/src/lib/__tests__/createBillingPortalSession.test.ts

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

const portalCreateMock = vi.fn();

vi.mock("stripe", () => ({
  default: vi.fn(() => ({
    billingPortal: {
      sessions: {
        create: portalCreateMock,
      },
    },
  })),
}));

import { createBillingPortalSession } from "../stripe";

describe("createBillingPortalSession", () => {
  beforeEach(() => {
    portalCreateMock.mockReset();
  });

  it("retourne l'URL de la billing portal session", async () => {
    portalCreateMock.mockResolvedValue({
      url: "https://billing.stripe.com/p/session/abc123",
    });

    const result = await createBillingPortalSession({
      customerId: "cus_abc",
      returnUrl: "https://expria.app/dashboard",
    });

    expect(result.url).toBe("https://billing.stripe.com/p/session/abc123");
    expect(portalCreateMock).toHaveBeenCalledWith({
      customer: "cus_abc",
      return_url: "https://expria.app/dashboard",
    });
  });

  it("throw si customerId vide", async () => {
    await expect(
      createBillingPortalSession({
        customerId: "",
        returnUrl: "https://expria.app/dashboard",
      }),
    ).rejects.toThrow("customerId requis");
    expect(portalCreateMock).not.toHaveBeenCalled();
  });

  it("throw si returnUrl vide", async () => {
    await expect(
      createBillingPortalSession({
        customerId: "cus_abc",
        returnUrl: "",
      }),
    ).rejects.toThrow("returnUrl requis");
    expect(portalCreateMock).not.toHaveBeenCalled();
  });

  it("throw si Stripe ne retourne pas d'URL", async () => {
    portalCreateMock.mockResolvedValue({ url: null });

    await expect(
      createBillingPortalSession({
        customerId: "cus_abc",
        returnUrl: "https://expria.app/dashboard",
      }),
    ).rejects.toThrow("URL de billing portal");
  });
});