internal static Datatype Read(
Hdf5Reader aReader,
long?aLocalMessageSize,
out long aBytes)
{
if (aLocalMessageSize.HasValue && aLocalMessageSize.Value < DatatypeHeader.HeaderSize)
{
throw new ArgumentException("Specified Local Message Size not long enough");
}
DatatypeHeader
fHeader = DatatypeHeader.Read(aReader);
Datatype
fMessage;
long
fAdditionalBytes;
long?
fBodySize = aLocalMessageSize.HasValue
? (long?)aLocalMessageSize.Value - DatatypeHeader.HeaderSize
: null;
switch (fHeader.Class)
{
case DatatypeClass.FixedPoint:
fMessage = FixedPointDataType.ReadMessage(
fHeader,
aReader,
fBodySize,
out fAdditionalBytes);
break;
case DatatypeClass.FloatingPoint:
fMessage = FloatingPointDataType.ReadMessage(
fHeader,
aReader,
fBodySize,
out fAdditionalBytes);
break;
case DatatypeClass.Time:
fMessage = TimeDataType.ReadMessage(
fHeader,
aReader,
fBodySize,
out fAdditionalBytes);
break;
case DatatypeClass.String:
fMessage = StringDataType.ReadMessage(
fHeader,
aReader,
fBodySize,
out fAdditionalBytes);
break;
case DatatypeClass.BitField:
fMessage = BitFieldDataType.ReadMessage(
fHeader,
aReader,
fBodySize,
out fAdditionalBytes);
break;
case DatatypeClass.Opaque:
fMessage = OpaqueDataType.ReadMessage(
fHeader,
aReader,
fBodySize,
out fAdditionalBytes);
break;
case DatatypeClass.Array:
fMessage = ArrayDataType.ReadMessage(
fHeader,
aReader,
fBodySize,
out fAdditionalBytes);
break;
default:
// We shoudl never git her, as header parsing should check
// for known versions of the header
throw new Exception("Unexpected Version Type");
}
aBytes = DatatypeHeader.HeaderSize + fAdditionalBytes;
return(fMessage);
}
public void Test_Basic_Parsing(
[Values] uMessages.DatatypeVersion
aVersion,
[Values((uint)0, (uint)0xffffffff), Random(1)] uint
aSize,
[Values("", "a", "A", ".", "abc123", "!@#$1234%^&*()67890")] string
aName)
{
using (Stream fTestSource = new MemoryStream())
using (BinaryWriter fWriter = new BinaryWriter(fTestSource))
{
byte[]
fTagBytes = Encoding.ASCII.GetBytes(aName);
int
fPadding = 8 - (fTagBytes.Length & 0x7),
fLength = fTagBytes.Length + fPadding;
//Verifying this test
Assert.That(fLength % 8, Is.EqualTo(0));
fWriter.Write((byte)(((byte)aVersion << 4) | (byte)0x05));
fWriter.Write((byte)fLength);
fWriter.Write((byte)0);
fWriter.Write((byte)0);
fWriter.Write(aSize);
fWriter.Write(fTagBytes);
fWriter.Write(Enumerable.Repeat((byte)0, fPadding).ToArray());
fTestSource.Seek(0, SeekOrigin.Begin);
Moq.Mock <ndf5.Metadata.ISuperBlock>
fSuperblock = new Moq.Mock <ndf5.Metadata.ISuperBlock>(
Moq.MockBehavior.Loose);
using (Hdf5Reader fReader = new Hdf5Reader(
fTestSource,
fSuperblock.Object))
{
long
fReadBytes;
uTest
fExpected = new uTest(
aSize,
aName),
fResult = ndf5.Messages.Message.Read(
fReader,
uMessages.MessageType.Datatype,
uMessages.MessageAttributeFlag.None,
null,
out fReadBytes) as uTest;
Assert.That(
fResult,
Is.Not.Null,
"Incorrect Message Type returned");
Assert.That(
fResult,
Is.EqualTo(fExpected),
"Equality check failed");
Assert.That(
fResult,
Is.Not.EqualTo(new uTest(
aSize,
aName + "Fail")),
"Inequality Check Failed");
Assert.That(
fResult,
Is.Not.EqualTo(null),
"Null Inequality Check Failed");
Assert.That(
fResult.GetHashCode(),
Is.EqualTo(fExpected.GetHashCode()),
"Hash Code Equality check failed");
Assert.That(
fReadBytes,
Is.EqualTo(fLength + 8),
"Wrong number of bytes read");
Assert.That(
fTestSource.Position,
Is.EqualTo(fLength + 8),
"Wrong number of bytes read");
Assert.That(
fReadBytes % 8,
Is.EqualTo(0),
"Read should be a mutiple of 8");
Assert.That(
fResult.Size,
Is.EqualTo(aSize),
"Incorrect Data Element Size");
Assert.That(
fResult.AsciiTag,
Is.EqualTo(aName),
"Incorrect Ascii Tag");
}
}
}
