title: Swagger api client methods return void
body: <p>Swagger api client, generated by codegen tool, only creates tests methods with return type <strong>void</strong>. How can I test my rest api ?</p>
  
  <p>This is my service code specification: </p>
  
  <pre><code> @Api(value = "Authentication Recovery")
   @Path("/authenticationRecovery")
  
  public class AuthenticationRecoveryResource implements Authentication{
  
  @ApiOperation(
          value = "Recover access token"
          , notes = "Recover access token assigned to the user (once it has been authenticated)"
          , response = TokenJAXB.class
          //, responseContainer = "List"
  )
  @ApiResponses(value = { 
          @ApiResponse(code = HttpURLConnection.HTTP_OK, message = "Authorized access") ,
          @ApiResponse(code = HttpURLConnection.HTTP_UNAUTHORIZED, message = "Unauthorized access") 
  })
  @POST
  @Produces(MediaType.APPLICATION_JSON)
  @Consumes(MediaType.APPLICATION_FORM_URLENCODED)
  public Response authenticate(
          @ApiParam(value="Username", required=true) @FormParam("username") String username,
          @ApiParam(value="Password", required=true) @FormParam("password") String password) 
  {..}
  </code></pre>
  
  <p>And this is my generated swagger code for testing:</p>
  
  <pre><code>/**
    * API tests for AuthenticationRecoveryApi
  */
  @Ignore
  
  public class AuthenticationRecoveryApiTest {
  
  private final AuthenticationRecoveryApi api = new AuthenticationRecoveryApi();
  
  /**
   * Recover access token
   *
   * Recover access token assigned to the user (once it has been authenticated)
   *
   * @throws ApiException
   *             if the Api call fails
   */
  @Test
  public void authenticateTest() throws ApiException {
      String username = null;
      String password = null;
      api.authenticate(username, password);
  
      // TODO: test validations
  }}
  </code></pre>
  
  <p>I have generate a swagger client api with: </p>
  
  <pre><code>java -jar swagger-codegen-2.2.3/modules/swagger-codegen-cli/target/swagger-codegen-cli.jar generate -i http://localhost:8080/myproject/services/service0/swagger.json -l java -o client/myproject/java
  </code></pre>