public void testParamsInBody_withExtraParams() throws Exception {
serviceProvider.setParamLocation(OAuthParamLocation.POST_BODY);
MakeRequestClient client = makeNonSocialClient("owner", "owner", GADGET_URL_BODY);
HttpResponse response = client.sendGet(FakeOAuthServiceProvider.RESOURCE_URL);
assertEquals("", response.getResponseAsString());
client.approveToken("user_data=hello-oauth");
response = client.sendFormPost(FakeOAuthServiceProvider.RESOURCE_URL, "foo=bar&foo=baz");
assertEquals("User data is hello-oauth", response.getResponseAsString());
String echoedBody = response.getHeader(FakeOAuthServiceProvider.BODY_ECHO_HEADER);