pleno-vue/tests/unit/table-excel-export-service.spec.js

import { existsSync, unlinkSync } from "node:fs";
import { afterEach, describe, expect, it, vi } from "vitest";
import {
  collectExcelColumns,
  createWorkbookFromRows,
  ensureExcelFilename,
  exportRowsToExcel,
  normalizeExcelValue,
  normalizeRowsForExcel,
  sanitizeSheetName,
} from "@/services/TableExcelExportService.js";

describe("table excel export service normalization", () => {
  it("normalizes primitive, null, date, object and array values deterministically", () => {
    const date = new Date("2026-03-18T10:00:00.000Z");

    expect(normalizeExcelValue(null)).toBe("");
    expect(normalizeExcelValue(undefined)).toBe("");
    expect(normalizeExcelValue(42)).toBe(42);
    expect(normalizeExcelValue(true)).toBe(true);
    expect(normalizeExcelValue(date)).toBe("2026-03-18T10:00:00.000Z");
    expect(normalizeExcelValue({ a: 1 })).toBe('{"a":1}');
    expect(normalizeExcelValue(["x", 2])).toBe('["x",2]');
  });

  it("keeps stable union-column order based on first-seen keys", () => {
    const rows = [
      { customer: "A", amount: 10 },
      { amount: 20, note: "second" },
      { created_at: "2026-03-18", customer: "B" },
    ];

    expect(collectExcelColumns(rows)).toEqual(["customer", "amount", "note", "created_at"]);
    expect(normalizeRowsForExcel(rows).columns).toEqual(["customer", "amount", "note", "created_at"]);
  });
});

describe("table excel export service workbook generation", () => {
  afterEach(() => {
    vi.restoreAllMocks();
  });

  it("sanitizes sheet names and file names for xlsx output", () => {
    expect(sanitizeSheetName("invoices:2026/03?*[]")).toBe("invoices_2026_03____");
    expect(ensureExcelFilename("orders")).toBe("orders.xlsx");
    expect(ensureExcelFilename("orders.xlsx")).toBe("orders.xlsx");
    expect(ensureExcelFilename("bad<>name")).toBe("bad--name.xlsx");
  });

  it("creates workbook metadata with normalized rows and writes .xlsx files", () => {
    const rows = [
      { id: 1, amount: 10 },
      { id: 2, amount: 20, tags: ["vip"] },
    ];
    const workbookResult = createWorkbookFromRows(rows, { sheetName: "Orders/Report" });
    const filename = exportRowsToExcel(rows, { filename: "orders-report", sheetName: "Orders/Report" });

    expect(workbookResult.sheetName).toBe("Orders_Report");
    expect(workbookResult.columns).toEqual(["id", "amount", "tags"]);
    expect(workbookResult.rows[1].tags).toBe('["vip"]');
    expect(workbookResult.workbook.SheetNames).toEqual(["Orders_Report"]);
    expect(filename).toBe("orders-report.xlsx");
    expect(existsSync(filename)).toBe(true);
    unlinkSync(filename);
  });
});