### Question:
CodeGrantTypeHandler implements GrantRequestHandler { public static String getResponseType() { return OAuth2Message.AUTHORIZATION_CODE; }  HttpRequest getAuthorizationRequest(final OAuth2Accessor accessor,
          final String completeAuthorizationUrl); String getCompleteUrl(final OAuth2Accessor accessor); String getGrantType(); static String getResponseType(); boolean isAuthorizationEndpointResponse(); boolean isRedirectRequired(); boolean isTokenEndpointResponse();  }### Answer:
@Test public void testGetResponseType_1() throws Exception { final String result = CodeGrantTypeHandler.getResponseType(); Assert.assertEquals("authorization_code", result); }