import { describe, expect, it } from "vitest";
import {
  escapeHtml,
  formatDateTime,
  formatSignedCredits,
  statusLabel,
} from "../lib/format";

describe("format helpers", () => {
  it("转义服务端文本以阻止 HTML 注入", () => {
    expect(escapeHtml('<img src=x onerror="alert(1)">')).toBe(
      "&lt;img src=x onerror=&quot;alert(1)&quot;&gt;",
    );
  });

  it("无效日期显示占位符", () => {
    expect(formatDateTime("not-a-date")).toBe("—");
    expect(formatDateTime()).toBe("—");
  });

  it("积分变动保留明确正负号", () => {
    expect(formatSignedCredits(15)).toBe("+15");
    expect(formatSignedCredits(-8)).toBe("-8");
  });

  it("未知状态保持原值", () => {
    expect(statusLabel("custom")).toBe("custom");
  });
});