JUnit测试控制台输入应用程序

import org.junit.jupiter.api.Test;

import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.util.Scanner;

import static org.junit.jupiter.api.Assertions.assertEquals;

public class ConsoleInputTest {

    @Test
    public void testConsoleInput() {
        String input = "Hello World";
        InputStream in = new ByteArrayInputStream(input.getBytes());
        System.setIn(in);

        Scanner scanner = new Scanner(System.in);
        String userInput = scanner.nextLine();

        assertEquals("Hello World", userInput);
    }
}