java - 测试一个向前重定向的无效方法

Question

如何测试使用 RequestDispatcher 重定向我的 void 方法？

到目前为止我做了什么。

public void testAuthAction_userNull() {
    HttpServletRequest requestMock = createMock(HttpServletRequest.class);
    HttpServletResponse responseMock = createMock(HttpServletResponse.class);
    expect(requestMock.getSession().getAttribute("user")).andReturn(null);
    replay(requestMock);

    AuthAction action = new AuthAction();
    RequestDispatcher rd = requestMock.getRequestDispatcher("/User/login.jsp");
}

我要测试的方法是。

public void execute(HttpServletRequest request, HttpServletResponse response) {
    User user = (User) request.getSession().getAttribute("User");
    try {
        if(user == null) {
            RequestDispatcher rd = request.getRequestDispatcher("/User/login.jsp");
            if(rd != null)
                rd.foward(request, response);
        } else {/* */}
    }
    catch(Exception e){/* */}
}

我正在使用 JUnit 和 EasyMock。

Answer 1

您需要创建一个模拟的 RequestDispatcher 期望被转发，并从您的模拟中返回它:

RequestDispatcher dispatcherMock = createMock(RequestDispatcher.class);
expect(requestMock.getRequestDispatcher("/User/login.jsp"))
    .andReturn(dispatcherMock);
// Expect to be forwarded.
dispatcherMock.forward(requestMock, responseMock);
EasyMock.expectLastCall().once();
replay(dispatcherMock);
replay(requestMock);

// Run your test on whatever instance has `execute`:
someInstance.execute(requestMock, responseMock);