현재 회사에서 인턴에게 일을 시키려 했던 HTTP 테스팅 프레임웍의 형태가 이미 이클립스 플러그인으로 있네요.
HTTP4e Rest Client
아래는 HTTP4e 웹 사이트에 있는 내용입니다.

About

Eclipse HTTP Client (HTTP4e)  is an Eclipse plugin for making HTTP and
RESTful calls. Build with user experience in mind, it simplifies the
developer/QA job of testing Web Services, REST, JSON and HTTP. It is a useful
tool for your daily job of  HTTP header tampering and hacking.

Features:

• Making/Replaying an HTTP call directly from Eclipse IDE
• Visual Editors for HTTP headers, parameters and body
• Tabbed browsing (allowing replaying different RESTful, HTTP calls on
  separate tabs)
• History support (persisting your valuable REST calls)
• One-click  HTTP code generation to Java, PHP, C#, Flex/ActionScript,
  Cocoa/Objective-C, Ruby, Python and Visual Basic
• One-click JMeter script generation
• Import and export HTTP4e replay script
• Export HTTP sessions as HTML report
• Import raw HTTP packets and Firefox’s Live HTTP headers
• Aesthetic UI, Code assist, Headers auto-suggest, Syntax coloring
• “Raw”, “Pretty”, “Hex”, “Browser” and “JSON” views
• Proxy Configuration
• BASIC and DIGEST Authentication
• SSL/HTTPS support
• Unicode UTF8 support
• HTTP tampering
• Available on Windows, MacOS X, Linux, Solaris