'Verify that the signature validaton library method is called using the
correct parameters derived from the HttpRequest.'

@patch('oauthlib.oauth1.SignatureOnlyEndpoint.validate_request', return_value=(True, None))
def test_verification_parameters(self, verify_mock):

    body = 'oauth_signature_method=HMAC-SHA1&oauth_version=1.0'
    content_type = 'application/x-www-form-urlencoded'
    request = RequestFactory().post('/url', body, content_type=content_type)
    headers = {'Content-Type': content_type}
    SignatureValidator(self.lti_consumer).verify(request)
    verify_mock.assert_called_once_with(request.build_absolute_uri(), 'POST', body, headers)
