Trying to assert contents of DynamicParameters

Hi!

I'me building out a solution using TDD techniques and while I have all my dapper touch points in a mockable state using NSubstitute I'm struggling to assert the contents of DynamicParameters passed into the dapper calls from SqlBuilder!

Using the following code for example

var sqlBulder = new SqlBuilder();
var query = sqlBulder.AddTemplate("Select Id, Name From Person /**where**/");
sqlBulder.Where("Id = @Id", new {Id = siteId});
DynamicParameters receivedParam = null;

await HubConnection.QueryAsync<Site>(Arg.Any<string>(), Arg.Do<object>(x => receivedParam = x as DynamicParameters));

await Fixture.Get(siteId);

receivedParam.Should().BeEquivalentTo(query.Parameters);

I would have expected the received parameters to match my test parameters, but testing has shown that I can change the actual values and the test still passes.. looking further into the issue it appears that (to the testing framework at least) both objects are empty but behind the scenes I can see that there are templates with the dynamic properties hiding out!

Even when I don't cast the received object to a DynamicParameters class (ie leave as object) I can still see the original class & templates during a debug session!

Any thoughts or suggestions?

Start by reproducing the SqlBuilder example around DynamicParameters, QueryAsync, and Fixture.Get(siteId). Inspect how query.Parameters and the object received by QueryAsync expose their values, then determine what assertion behavior is expected and verify it against the observed parameter changes.