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import { describe, it, expect, beforeEach } from 'vitest';
import { groceries, categories } from '$lib/server/db/schema';
import { eq } from 'drizzle-orm';
import { createTestDb, type TestDb } from '$lib/server/db/test-helper';
import { loadAll, add, deleteCategory } from './categories';
describe('categories service', () => {
let db: TestDb['db'];
beforeEach(async () => {
db = (await createTestDb()).db;
});
it('loadAll returns categories sorted by name', async () => {
await db.insert(categories).values([{ name: 'Zebra' }, { name: 'Apple' }]);
const result = await loadAll(db);
expect(result.map((c) => c.name)).toEqual(['Apple', 'Zebra']);
});
it('add creates a category', async () => {
const cat = await add('Beverages', db);
expect(cat.name).toBe('Beverages');
const rows = await db.select().from(categories);
expect(rows).toHaveLength(1);
});
it('deleteCategory removes the category and nullifies grocery categoryId', async () => {
const [cat] = await db
.insert(categories)
.values({ name: 'Dairy' })
.returning();
const now = Temporal.Now.instant().toString({
smallestUnit: 'millisecond',
});
await db.insert(groceries).values({
name: 'milk',
checked: false,
createdAt: now,
categoryId: cat.id,
});
await deleteCategory(cat.id, db);
const catRows = await db.select().from(categories);
expect(catRows).toHaveLength(0);
const [item] = await db.select().from(groceries);
expect(item.categoryId).toBeNull();
});
});
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