如何在单元测试中模拟ServletContext来访问WAR资源？

import org.springframework.mock.web.MockServletContext;
import org.springframework.core.io.ClassPathResource;
import javax.servlet.ServletContext;
import java.io.IOException;
import java.io.InputStream;

public class UnitTestExample {

    public void testServletContext() throws IOException {
        // 创建MockServletContext对象
        MockServletContext servletContext = new MockServletContext();

        // 设置WAR资源的路径
        String resourcePath = "/path/to/resource";
        ClassPathResource resource = new ClassPathResource(resourcePath);

        // 获取资源的输入流
        InputStream inputStream = resource.getInputStream();

        // 将资源添加到ServletContext中
        servletContext.addResource(resourcePath, resource);

        // 通过ServletContext获取资源的输入流
        InputStream servletContextInputStream = servletContext.getResourceAsStream(resourcePath);

        // 进行单元测试的断言操作
        // ...

        // 关闭输入流
        inputStream.close();
        servletContextInputStream.close();
    }
}