private bool ByMemberName(out object?result, string memberName)
{
var value = _getter(_item, memberName);
result = DBNullHelper.FromDb(value);
return(true);
}
public void FromDb_NonNullString_ShouldStaySame()
{
object input = "xyz";
object o = DBNullHelper.FromDb(input);
Assert.AreEqual(input, o);
}
public void FromDb_BoxedInteger_ShouldStaySame()
{
object input = 1;
object o = DBNullHelper.FromDb(input);
Assert.AreEqual(input, o);
}
public void FromDb_NullReference_ShouldBeNull()
{
object input = null;
// ReSharper disable ConditionIsAlwaysTrueOrFalse
object o = DBNullHelper.FromDb(input);
// ReSharper restore ConditionIsAlwaysTrueOrFalse
Assert.IsNull(o);
}
private static T MapTo <T>(this IDataRecord record, DbConfig config)
{
var convention = config.MappingConvention;
var setters = FastReflection.Instance.GetSettersForType <T>();
var result = Activator.CreateInstance <T>();
for (var i = 0; i < record.FieldCount; i++)
{
var columnName = convention.FromDb(record.GetName(i));
if (!setters.TryGetValue(columnName, out var setter))
{
continue;
}
var val = DBNullHelper.FromDb(record.GetValue(i));
setter(result, val);
}
return(result);
}
public void FromDb_DBNullValue_ShouldBeNull()
{
object o = DBNullHelper.FromDb(DBNull.Value);
Assert.IsNull(o);
}