public void ParameterTest(int columns, int rows, int expectedParameterCount, int expectedBatchSize, int expectedRemainderBatchsize)
{
DbContextOptionsBuilder<MyContext> opt = new DbContextOptionsBuilder<MyContext>();
opt.UseSqlite("Filename=testparameter.sqlite");
var context = new MyContext(opt.Options);
var (dbParameters, batchSize, remainder) = DbContextExtensions.GetInsertParametersAndBatchSize(context, columns, rows);
Assert.That(dbParameters.Length, Is.EqualTo(expectedParameterCount));
Assert.That(batchSize, Is.EqualTo(expectedBatchSize));
Assert.That(remainder, Is.EqualTo(expectedRemainderBatchsize));
Assert.That(dbParameters[0].ParameterName, Is.EqualTo("p0"));
Assert.That(dbParameters[dbParameters.Length-1].ParameterName, Is.EqualTo("p"+(dbParameters.Length-1)));
}