flutter pub add mock_data根據套件公開資料產生的選型評估，僅供參考。
mock_data 套件在 Dart 中產生隨機且真實的測試資料。它提供建立隨機字串、整數、姓名、顏色、IP 位址、UUID、URL 和日期的工具，非常適合在開發與測試過程中模擬真實世界的資料。此套件輕量且易於整合，支援所有主要平台，包括 Android、iOS、Web、macOS、Windows 與 Linux。特別適用於以佔位內容填滿 UI 或在不依賴外部來源的情況下測試資料處理邏輯。
以下為關聯原始碼儲存庫的 README 原文快照，最新內容請造訪原始碼儲存庫。
Generate random data using 
API provides generation of:
A simple usage example:
import 'package:mock_data/mock_data.dart';
main() {
mockName(); // Generate male or female first name.
mockName('male'); // Generate male first name.
mockName('female'); // Generate female first name.
mockInteger(1, 6); // Generate integer in range from 1 do 6.
mockString(16); // Generate string of length 16.
mockIPv4(); // Generate IPv4 represented with
// format(default is '*.*.*.*') as String.
mockIPv6(); // Generate IPv6, same usage as with IPv4.
mockColor('hex'); // Generate color represented in hex format.
mockColor('rgb'); // Generate color represented in RGB format.
mockUUID(); // Generate UUIDv4
mockLocation(); // Generate random location.
mockLocation(53.55, 108.14, 1000); // Generate random location in 1000 m radius from the specified coordinates.
}
These are some basic examples. There are many more methods and they all support tweeking of parameters to suit you in generating random data. By reading examples you can learn more about functionality and usage of mock_data