public void EmittedDeserializerDeserializesEmptyStringIntoNull()
{
NullableDateTimeConverter converter = new NullableDateTimeConverter();
string text = "";
DynamicMethod deserialize = new DynamicMethod("Deserialize", typeof(DateTime?), new Type[] { typeof(ReadOnlyMemory <char>), typeof(IFormatProvider) }, typeof(DateTimeConverterTests));
deserialize.GetILGenerator()
.DeclareLocal <DateTime?>(out LocalBuilder nullableLocal)
.DeclareLocal <DateTime>(out LocalBuilder local)
.Ldarga_S(0)
.Emit(gen => converter.EmitDeserialize(gen, nullableLocal, local, null))
.Ret();
DateTime?deserialized = (DateTime?)deserialize.Invoke(this, new object?[] { text.AsMemory(), CultureInfo.InvariantCulture }) !;
deserialized.Should().Be(null);
}
public void CanEmitDeserializerWithCustomDateFormat()
{
NullableDateTimeConverter converter = new NullableDateTimeConverter();
string text = "2019/May/04 3:02:01";
CsvColumnAttribute attribute = new CsvColumnAttribute("Date")
{
DateFormat = "yyyy/MMM/dd H:mm:ss"
};
DynamicMethod deserialize = new DynamicMethod("Deserialize", typeof(DateTime?), new Type[] { typeof(ReadOnlyMemory <char>), typeof(IFormatProvider) }, typeof(DateTimeConverterTests));
deserialize.GetILGenerator()
.DeclareLocal <DateTime?>(out LocalBuilder nullableLocal)
.DeclareLocal <DateTime>(out LocalBuilder local)
.Ldarga_S(0)
.Emit(gen => converter.EmitDeserialize(gen, nullableLocal, local, attribute))
.Ret();
DateTime?deserialized = (DateTime?)deserialize.Invoke(this, new object?[] { text.AsMemory(), CultureInfo.InvariantCulture }) !;
deserialized.Should().Be(new DateTime(2019, 5, 4, 3, 2, 1));
}