data-entry-app/frontend/src/routes/load-fetch.test.ts

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

const apiMocks = vi.hoisted(() => ({
  rawMaterials: vi.fn(),
  mixes: vi.fn(),
  mix: vi.fn(),
  products: vi.fn(),
  productCosts: vi.fn(),
  scenarios: vi.fn(),
  dataQuality: vi.fn(),
  clientAccess: vi.fn(),
  clientAccessExport: vi.fn()
}));

const sessionMocks = vi.hoisted(() => ({
  hasStoredClientSession: vi.fn(),
  hasStoredAdminSession: vi.fn()
}));

vi.mock('$lib/api', () => ({
  api: apiMocks
}));

vi.mock('$lib/session', () => sessionMocks);

import { load as homeLoad } from './+page';
import { load as adminLoad } from './admin/+page';
import { load as mixesLoad } from './mixes/+page';
import { load as mixNewLoad } from './mixes/new/+page';
import { load as mixDetailLoad } from './mixes/[id]/+page';
import { load as productsLoad } from './products/+page';
import { load as rawMaterialsLoad } from './raw-materials/+page';
import { load as scenariosLoad } from './scenarios/+page';

describe('route loaders use the SvelteKit fetch argument', () => {
  const fetcher = vi.fn() as typeof fetch;

  beforeEach(() => {
    vi.clearAllMocks();
    sessionMocks.hasStoredClientSession.mockReturnValue(true);
    sessionMocks.hasStoredAdminSession.mockReturnValue(true);

    apiMocks.rawMaterials.mockResolvedValue([{ id: 1 }]);
    apiMocks.mixes.mockResolvedValue([{ id: 2 }]);
    apiMocks.mix.mockResolvedValue({ id: 42 });
    apiMocks.products.mockResolvedValue([{ id: 3 }]);
    apiMocks.productCosts.mockResolvedValue([{ id: 4 }]);
    apiMocks.scenarios.mockResolvedValue([{ id: 5 }]);
    apiMocks.dataQuality.mockResolvedValue([{ id: 6 }]);
    apiMocks.clientAccess.mockResolvedValue([{ id: 7 }]);
    apiMocks.clientAccessExport.mockResolvedValue({ generated_at: '', clients: [] });
  });

  it('passes fetch through the home page loader', async () => {
    await homeLoad({ fetch: fetcher } as never);

    expect(apiMocks.rawMaterials).toHaveBeenCalledWith(fetcher);
    expect(apiMocks.mixes).toHaveBeenCalledWith(fetcher);
    expect(apiMocks.productCosts).toHaveBeenCalledWith(fetcher);
    expect(apiMocks.scenarios).toHaveBeenCalledWith(fetcher);
    expect(apiMocks.dataQuality).toHaveBeenCalledWith(fetcher);
  });

  it('passes fetch through the raw materials loader', async () => {
    await rawMaterialsLoad({ fetch: fetcher } as never);

    expect(apiMocks.rawMaterials).toHaveBeenCalledWith(fetcher);
    expect(apiMocks.mixes).toHaveBeenCalledWith(fetcher);
    expect(apiMocks.products).toHaveBeenCalledWith(fetcher);
    expect(apiMocks.productCosts).toHaveBeenCalledWith(fetcher);
  });

  it('passes fetch through the mixes loader', async () => {
    await mixesLoad({ fetch: fetcher } as never);

    expect(apiMocks.mixes).toHaveBeenCalledWith(fetcher);
  });

  it('passes fetch through the new mix loader', async () => {
    await mixNewLoad({ fetch: fetcher } as never);

    expect(apiMocks.rawMaterials).toHaveBeenCalledWith(fetcher);
  });

  it('passes fetch through the mix detail loader', async () => {
    await mixDetailLoad({ params: { id: '42' }, fetch: fetcher } as never);

    expect(apiMocks.mix).toHaveBeenCalledWith(42, fetcher);
    expect(apiMocks.rawMaterials).toHaveBeenCalledWith(fetcher);
  });

  it('passes fetch through the products loader', async () => {
    await productsLoad({ fetch: fetcher } as never);

    expect(apiMocks.products).toHaveBeenCalledWith(fetcher);
    expect(apiMocks.productCosts).toHaveBeenCalledWith(fetcher);
  });

  it('passes fetch through the scenarios loader', async () => {
    await scenariosLoad({ fetch: fetcher } as never);

    expect(apiMocks.scenarios).toHaveBeenCalledWith(fetcher);
  });

  it('passes fetch through the admin loader', async () => {
    await adminLoad({ fetch: fetcher } as never);

    expect(apiMocks.clientAccess).toHaveBeenCalledWith(fetcher);
    expect(apiMocks.clientAccessExport).toHaveBeenCalledWith(fetcher);
  });
});