email

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const vitest_1 = require("vitest");
// Pure pagination logic extracted from imap.ts for unit testing
function paginate(allUids, offset, limit) {
    const allNewestFirst = [...allUids].reverse();
    const total = allNewestFirst.length;
    const page = allNewestFirst.slice(offset, offset + limit);
    return {
        page,
        total,
        offset,
        hasMore: offset + limit < total,
        nextOffset: offset + limit < total ? offset + limit : null,
    };
}
(0, vitest_1.describe)("pagination", () => {
    const uids = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]; // oldest → newest
    (0, vitest_1.it)("first page returns newest-first", () => {
        const r = paginate(uids, 0, 3);
        (0, vitest_1.expect)(r.page).toEqual([10, 9, 8]);
        (0, vitest_1.expect)(r.total).toBe(10);
        (0, vitest_1.expect)(r.hasMore).toBe(true);
        (0, vitest_1.expect)(r.nextOffset).toBe(3);
    });
    (0, vitest_1.it)("second page continues from offset", () => {
        const r = paginate(uids, 3, 3);
        (0, vitest_1.expect)(r.page).toEqual([7, 6, 5]);
        (0, vitest_1.expect)(r.hasMore).toBe(true);
    });
    (0, vitest_1.it)("last page has hasMore=false", () => {
        const r = paginate(uids, 9, 3);
        (0, vitest_1.expect)(r.page).toEqual([1]);
        (0, vitest_1.expect)(r.hasMore).toBe(false);
        (0, vitest_1.expect)(r.nextOffset).toBeNull();
    });
    (0, vitest_1.it)("offset beyond total returns empty page", () => {
        const r = paginate(uids, 20, 3);
        (0, vitest_1.expect)(r.page).toEqual([]);
        (0, vitest_1.expect)(r.hasMore).toBe(false);
    });
    (0, vitest_1.it)("limit larger than total returns all", () => {
        const r = paginate(uids, 0, 100);
        (0, vitest_1.expect)(r.page).toHaveLength(10);
        (0, vitest_1.expect)(r.hasMore).toBe(false);
    });
    (0, vitest_1.it)("empty uid list", () => {
        const r = paginate([], 0, 10);
        (0, vitest_1.expect)(r.page).toEqual([]);
        (0, vitest_1.expect)(r.total).toBe(0);
        (0, vitest_1.expect)(r.hasMore).toBe(false);
    });
    (0, vitest_1.it)("exactly fills a page — hasMore false", () => {
        const r = paginate(uids, 0, 10);
        (0, vitest_1.expect)(r.hasMore).toBe(false);
        (0, vitest_1.expect)(r.page).toHaveLength(10);
    });
    (0, vitest_1.it)("offset=0 limit=1 paginates through all one by one", () => {
        for (let i = 0; i < 10; i++) {
            const r = paginate(uids, i, 1);
            (0, vitest_1.expect)(r.page).toEqual([10 - i]);
            (0, vitest_1.expect)(r.hasMore).toBe(i < 9);
        }
    });
});