How do I Unit Test HTTPServlet?

Question

I want to test my servlet with http://www.easymock.org/

How do I write the Unit Testing Code?

I update my code with your responce.

I just used Google

Answer 1

I am more familiar with Mockito, but I believe they are still similar. In fact I think Mockito was branched from EasyMock a few years back.

There is no cookbook approach to unit testing, but this is the basic approach I tend to take:

1) Create a real instance of your servlet class (i.e. new MyServlet())

2) Create a mock HttpRequest using EasyMock

2a) Mock the desired behavior of the request to simulate a real HTTP request. For example, this may mean you simulate the presence of request parameters or headers.

3) Create a mock HttpResponse using EasyMock

4) call the doGet() method of your servlet passing it both the mock request and response.

5) For verification, inspect the mock HttpResponse. Verify that: (a) the expected methods have been called on the object, (b) The expected data has been passed to the object.

I know this is very high-level, but I am just outlining the approach. I assume you know how to accomplish the mocking/verification behaviors using EasyMock.

Hope this is helpful.