C# (CSharp) MsgPack Unpacking.UnpackSingle Exemples

UnpackSingle() public static méthode

Unpacks System.Single value from the specified Stream.

The processed bytes count can be calculated via P:Stream.Position of source when the P:Stream.CanSeek is true.

When the type of packed value is not known, use UnpackObject(Stream) instead.

/// is null. /// /// The of is false. /// /// is not valid MessagePack stream. /// Note that the state of will be unpredictable espicially it is not seekable. /// /// The unpacked result in the is not compatible to . /// Note that the state of will be unpredictable espicially it is not seekable. ///

public static UnpackSingle ( Stream source ) : System.Single
source	Stream	The which contains Message Pack binary stream.
Résultat	System.Single

Exemple #1

        public void TestUnpackSingle_ByteArray_DoubleMinValue_AsIs()
        {
            var result = Unpacking.UnpackSingle(new byte[] { 0xCB, 0xFF, 0xEF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF });

            Assert.AreEqual(sizeof(System.Double) + 1, result.ReadCount);
            Assert.IsTrue((( float )Double.MinValue).Equals(result.Value));
        }

Exemple #2

        public void TestUnpackSingle_ByteArray_SingleMaxValue_AsIs()
        {
            var result = Unpacking.UnpackSingle(new byte[] { 0xCA, 0x7F, 0x7F, 0xFF, 0xFF });

            Assert.AreEqual(sizeof(System.Single) + 1, result.ReadCount);
            Assert.IsTrue(Single.MaxValue.Equals(result.Value));
        }

Exemple #3

        public void TestUnpackSingle_ByteArray_SingleZero_AsIs()
        {
            var result = Unpacking.UnpackSingle(new byte[] { 0xCA, 0x00, 0x00, 0x00, 0x00 });

            Assert.AreEqual(sizeof(System.Single) + 1, result.ReadCount);
            Assert.IsTrue((0.0f).Equals(result.Value));
        }

Exemple #4

        public void TestUnpackSingleEpsilon_UnpackSingle_ByteArray()
        {
            var buffer = new byte[] { 0xCA, 0x00, 0x00, 0x00, 0x01 };
            var result = Unpacking.UnpackSingle(buffer);

            Assert.That(result.ReadCount, Is.EqualTo(buffer.Length));
            Assert.That(Single.Epsilon.Equals(result.Value));
        }

Exemple #5

        public void TestUnpackSinglePositiveInfinity_UnpackSingle_ByteArray()
        {
            var buffer = new byte[] { 0xCA, 0x7F, 0x80, 0x00, 0x00 };
            var result = Unpacking.UnpackSingle(buffer);

            Assert.That(result.ReadCount, Is.EqualTo(buffer.Length));
            Assert.That(Single.IsPositiveInfinity(result.Value));
        }

Exemple #6

        public void TestUnpackSingleNaNNegativeMaxValue_UnpackSingle_ByteArray()
        {
            var buffer = new byte[] { 0xCA, 0xFF, 0xFF, 0xFF, 0xFF };
            var result = Unpacking.UnpackSingle(buffer);

            Assert.That(result.ReadCount, Is.EqualTo(buffer.Length));
            Assert.That(Single.IsNaN(result.Value));
        }

Exemple #7

        public void TestUnpackSingleNegativeZero_UnpackSingle_ByteArray()
        {
            var buffer = new byte[] { 0xCA, 0x80, 0x00, 0x00, 0x00 };
            var result = Unpacking.UnpackSingle(buffer);

            Assert.That(result.ReadCount, Is.EqualTo(buffer.Length));
            Assert.That((-0.0f).Equals(result.Value));
        }

Exemple #8

        public void TestUnpackSingle_ByteArray_Offset_OffsetIsValid_OffsetIsRespected()
        {
            // Offset 1 is Single 0.
            var result = Unpacking.UnpackSingle(new byte[] { 0xFF, 0xCA, 0x00, 0x00, 0x00, 0x00, 0xFF }, 1);

            Assert.AreEqual(sizeof(System.Single) + 1, result.ReadCount);
            Assert.AreEqual(0.0, result.Value);
        }

Exemple #9

        private static void TestSingle(Single value)
        {
            var output = new MemoryStream();

            Packer.Create(output).Pack(value);
            Assert.AreEqual(value, Unpacking.UnpackSingle(new MemoryStream(output.ToArray())), 10e-10);
            Assert.AreEqual(value, Unpacking.UnpackSingle(output.ToArray()).Value, 10e-10);
        }

Exemple #10

 public void TestUnpackSingle_Stream_DoubleMinValue_AsIs()
 {
     using (var buffer = new MemoryStream(new byte[] { 0xCB, 0xFF, 0xEF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }))
     {
         var result = Unpacking.UnpackSingle(buffer);
         Assert.AreEqual(sizeof(System.Double) + 1, buffer.Position);
         Assert.IsTrue((( float )Double.MinValue).Equals(result));
     }
 }

Exemple #11

 public void TestUnpackSinglePositiveInfinity_UnpackSingle_Stream()
 {
     using (var buffer = new MemoryStream(new byte[] { 0xCA, 0x7F, 0x80, 0x00, 0x00 }))
     {
         var result = Unpacking.UnpackSingle(buffer);
         Assert.That(buffer.Position, Is.EqualTo(buffer.Length));
         Assert.That(Single.IsPositiveInfinity(result));
     }
 }

Exemple #12

 public void TestUnpackSingleNaNNegativeMaxValue_UnpackSingle_Stream()
 {
     using (var buffer = new MemoryStream(new byte[] { 0xCA, 0xFF, 0xFF, 0xFF, 0xFF }))
     {
         var result = Unpacking.UnpackSingle(buffer);
         Assert.That(buffer.Position, Is.EqualTo(buffer.Length));
         Assert.That(Single.IsNaN(result));
     }
 }

Exemple #13

 public void TestUnpackSingleNegativeZero_UnpackSingle_Stream()
 {
     using (var buffer = new MemoryStream(new byte[] { 0xCA, 0x80, 0x00, 0x00, 0x00 }))
     {
         var result = Unpacking.UnpackSingle(buffer);
         Assert.That(buffer.Position, Is.EqualTo(buffer.Length));
         Assert.That((-0.0f).Equals(result));
     }
 }

Exemple #14

 public void TestUnpackSingleEpsilon_UnpackSingle_Stream()
 {
     using (var buffer = new MemoryStream(new byte[] { 0xCA, 0x00, 0x00, 0x00, 0x01 }))
     {
         var result = Unpacking.UnpackSingle(buffer);
         Assert.That(buffer.Position, Is.EqualTo(buffer.Length));
         Assert.That(Single.Epsilon.Equals(result));
     }
 }

Exemple #15

 public void TestUnpackSingle_Stream_SingleMaxValue_AsIs()
 {
     using (var buffer = new MemoryStream(new byte[] { 0xCA, 0x7F, 0x7F, 0xFF, 0xFF }))
     {
         var result = Unpacking.UnpackSingle(buffer);
         Assert.AreEqual(sizeof(System.Single) + 1, buffer.Position);
         Assert.IsTrue(Single.MaxValue.Equals(result));
     }
 }

Exemple #16

 public void TestUnpackSingle_Stream_SingleZero_AsIs()
 {
     using (var buffer = new MemoryStream(new byte[] { 0xCA, 0x00, 0x00, 0x00, 0x00 }))
     {
         var result = Unpacking.UnpackSingle(buffer);
         Assert.AreEqual(sizeof(System.Single) + 1, buffer.Position);
         Assert.IsTrue((0.0f).Equals(result));
     }
 }

Exemple #17

 public void TestUnpackSingle_ByteArray_Offset_OffsetIsNegative()
 {
     Assert.Throws <ArgumentOutOfRangeException>(() => Unpacking.UnpackSingle(new byte[] { 0x1 }, -1));
 }

Exemple #18

 public void TestUnpackSingle_ByteArray_Offset_Null()
 {
     Assert.Throws <ArgumentNullException>(() => Unpacking.UnpackSingle(default(byte[]), 0));
 }

Exemple #19

 public void TestUnpackSingle_ByteArray_Offset_OffsetIsTooBig()
 {
     Assert.Throws <ArgumentException>(() => Unpacking.UnpackSingle(new byte[] { 0x1 }, 1));
 }

Exemple #20

 public void TestUnpackSingle_ByteArray_NotSingle()
 {
     Assert.Throws <MessageTypeException>(() => Unpacking.UnpackSingle(new byte[] { 0xC3 }));
 }

Exemple #21

 public void TestUnpackSingle_ByteArray_Offset_Empty()
 {
     Assert.Throws <ArgumentException>(() => Unpacking.UnpackSingle(new byte[0], 0));
 }

Exemple #22

 public void TestUnpackSingle_Stream_Null()
 {
     Assert.Throws <ArgumentNullException>(() => Unpacking.UnpackSingle(default(Stream)));
 }