unit testing - Spring controller tests with mocks -

so i'm having issues coming solution test.

this method want test(i'm new this). clears fields on web page each time it's loaded.

@requestmapping("/addaddressform") public string addaddressform(httpsession session) {     session.removeattribute("firstname");     session.removeattribute("surname");     session.removeattribute("phone");     session.removeattribute("workno");     session.removeattribute("homeno");     session.removeattribute("address");     session.removeattribute("email");      return "simpleforms/addcontact"; } 

and here's have far test

package controllertests;  import java.text.attributedcharacteriterator.attribute;  import org.junit.before; import org.junit.test; import org.junit.runner.runwith; import org.springframework.beans.factory.annotation.autowired; import org.springframework.mock.web.mockhttpsession; import org.springframework.test.context.contextconfiguration; import org.springframework.test.context.junit4.springjunit4classrunner; import org.springframework.test.context.web.webappconfiguration; import org.springframework.test.web.servlet.mockmvc; import org.springframework.test.web.servlet.mvcresult; import org.springframework.test.web.servlet.request.mockhttpservletrequestbuilder; import org.springframework.test.web.servlet.request.mockmvcrequestbuilders; import org.springframework.test.web.servlet.result.mockmvcresulthandlers; import org.springframework.test.web.servlet.setup.mockmvcbuilders; import org.springframework.web.context.webapplicationcontext;  import static org.springframework.test.web.servlet.request.mockmvcrequestbuilders.get; import static org.springframework.test.web.servlet.result.mockmvcresultmatchers.status;   @runwith(springjunit4classrunner.class) @webappconfiguration @contextconfiguration (classes = {simpleformscontrollertest.class})  public class simpleformscontrollertest {     @autowired     private webapplicationcontext wac;     private mockmvc mockmvc;      @before     public void setup() {     this.mockmvc = mockmvcbuilders.webappcontextsetup(this.wac).build();     }      @test     public void addaddressform_existingcontactdetailsinform_removalfromsession()          throws     exception{      mockhttpsession mocksession = new mockhttpsession();      mocksession.putvalue("firstname", "test");     mocksession.putvalue("surname", "test");     mocksession.putvalue("phone", "test");     mocksession.putvalue("workno", "test");     mocksession.putvalue("homeno", "test");     mocksession.putvalue("address", "test");     mocksession.putvalue("email", "test");      mockmvc.perform(get("simpleforms/addaddressform").session(mocksession)); } 

as first time i've ever had kind of thing don't have clue go this.

then have assert values, e.g.:

assertnull(mocksession.getattribute("firstname")); 

if want make sure case, can do:

assertnotnull(mocksession.getattribute("firstname")); 

before fire request.