public void BuildsRequestWithParameters()
{
var parameters = new Collection <KeyValuePair <string, string> >
{
new KeyValuePair <string, string>("client_id", "1"),
new KeyValuePair <string, string>("client_secret", "secret"),
new KeyValuePair <string, string>("grant_type",
"authorization_code"),
new KeyValuePair <string, string>("code", "some_code")
};
_builder.AddParameters(parameters);
var request = _builder.Request;
Assert.AreEqual(4, request.Parameters.Count);
}