public void ReadCsv_ClassWithNullableCompositeStruct_ObjectsWithNullValues()
{
var serializer = new CsvSerializerContext()
{
ThrowOnFailedDeserialize = false
};
var converter = new SingleNullableStructValueCsvConverter();
serializer.Converters.Add(converter);
serializer.Converters.Add(new CompositeStructCsvConverter());
string[] csv = new string[] {
"ValueId,ValueDuration", // header
"1,15.24", // first record
",", // second empty record
"2,-99.24", // third record
"" // empty line after the last record
};
List <SingleNullableStructValue> result = new List <SingleNullableStructValue>();
using (var source = new StringReader(String.Join(Environment.NewLine, csv)))
using (var reader = new CsvReader(source, serializer.Configuration))
{
var naming = new CsvHeaderNamingContext();
if (reader.Read())
{
converter.ReadCsvHeader(reader, serializer);
}
while (reader.Read())
{
result.Add((SingleNullableStructValue)converter.ReadCsv(reader, typeof(SingleNullableStructValue), serializer, naming));
}
}
Assert.AreEqual(3, result.Count);
Assert.IsNotNull(result[0]);
Assert.IsTrue(result[0].Value.HasValue);
Assert.AreEqual(1, result[0].Value.Value.Id);
Assert.AreEqual(15.24, result[0].Value.Value.Duration);
Assert.IsNotNull(result[1]);
Assert.IsFalse(result[1].Value.HasValue);
Assert.IsNotNull(result[2]);
Assert.IsTrue(result[2].Value.HasValue);
Assert.AreEqual(2, result[2].Value.Value.Id);
Assert.AreEqual(-99.24, result[2].Value.Value.Duration);
}
public void WriteCsv_ClassWithNullableCompositeStruct_RecordsWithNullValues()
{
var serializer = new CsvSerializerContext();
var converter = new SingleNullableStructValueCsvConverter();
serializer.Converters.Add(converter);
serializer.Converters.Add(new CompositeStructCsvConverter());
var target = new StringWriter();
var writer = new CsvWriter(target, serializer.Configuration);
converter.WriteCsvHeader(writer, typeof(SingleNullableStructValue), serializer, new CsvHeaderNamingContext());
writer.NextRecord();
converter.WriteCsv(new SingleNullableStructValue()
{
Value = new CompositeStruct()
{
Id = 1, Duration = 15.24
}
}, writer, serializer);
writer.NextRecord();
converter.WriteCsv(new SingleNullableStructValue()
{
Value = null
}, writer, serializer);
writer.NextRecord();
converter.WriteCsv(new SingleNullableStructValue()
{
Value = new CompositeStruct()
{
Id = 2, Duration = -99.24
}
}, writer, serializer);
writer.NextRecord();
writer.Dispose();
target.Close();
string[] expected = new string[] {
"ValueId,ValueDuration", // header
"1,15.24", // first record
",", // second empty record
"2,-99.24", // third record
"" // empty line after the last record
};
Assert.AreEqual(String.Join(Environment.NewLine, expected), target.ToString());
}
