### Question:
OAuth2ResponseParams { public String getAuthorizationUrl() { return this.authorizationUrl; } OAuth2ResponseParams(); void addRequestTrace(final HttpRequest request, final HttpResponse response); void addDebug(final String debugMessage); void addToResponse(final HttpResponseBuilder responseBuilder, final String errorCode,
      final String errorDescription, final String errorUri, final String errorExplanation); String getAuthorizationUrl(); void setAuthorizationUrl(final String authorizationUrl); static final String APPROVAL_URL; static final String ERROR_CODE; static final String ERROR_TEXT; static final String ERROR_TRACE; static final String ERROR_URI; static final String ERROR_EXPLANATION; }### Answer:
@Test public void testOAuth2ResponseParams_1() throws Exception { final OAuth2ResponseParams result = new OAuth2ResponseParams(); Assert.assertNotNull(result); Assert.assertEquals(null, result.getAuthorizationUrl()); }