public void ReturnsTrueForAnyInput_WithZeroLeftoverColumns()
{
int leftover;
var toTest = new ExpandoObjectRowFactory <dynamic>();
var result = toTest.MatchesColumns(new[] { "String", "Double", "Decimal", "Int", "Long", "Date" }, out leftover);
result.Should().BeTrue("because any and all columns will be matched");
leftover.Should().Be(0, "because all columns get matched, none should be leftover");
}