Ejemplo n.º 1
0
        public async Task TestDoubleCompatibility(int length, bool bigTiff)
        {
            double[] refData = new double[length];
            var      rand    = new Random();

            for (int i = 0; i < refData.Length; i++)
            {
                refData[i] = rand.NextDouble();
            }

            using Stream stream = await GenerateTiffAsync(bigTiff, async ifd =>
            {
                await ifd.WriteTagAsync((TiffTag) 0x1234, TiffValueCollection.UnsafeWrap(refData));
            });

            await using (TiffFileReader reader = await TiffFileReader.OpenAsync(stream, leaveOpen: true))
            {
                TiffImageFileDirectory ifd = await reader.ReadImageFileDirectoryAsync();

                TiffFieldReader fieldReader = await reader.CreateFieldReaderAsync();

                TiffImageFileDirectoryEntry entry = ifd.FindEntry((TiffTag)0x1234);
                Assert.Equal((TiffTag)0x1234, entry.Tag);

                // Byte
                await TestInvalidConversionAsync <byte>(fieldReader, entry, nameof(fieldReader.ReadByteFieldAsync), refData.Length);

                // SSbyte
                await TestInvalidConversionAsync <sbyte>(fieldReader, entry, nameof(fieldReader.ReadSByteFieldAsync), refData.Length);

                // Short
                await TestInvalidConversionAsync <ushort>(fieldReader, entry, nameof(fieldReader.ReadShortFieldAsync), refData.Length);

                // SShort
                await TestInvalidConversionAsync <short>(fieldReader, entry, nameof(fieldReader.ReadSShortFieldAsync), refData.Length);

                // Long
                await TestInvalidConversionAsync <uint>(fieldReader, entry, nameof(fieldReader.ReadLongFieldAsync), refData.Length);

                // SLong
                await TestInvalidConversionAsync <int>(fieldReader, entry, nameof(fieldReader.ReadSLongFieldAsync), refData.Length);

                // Float
                await TestInvalidConversionAsync <float>(fieldReader, entry, nameof(fieldReader.ReadFloatFieldAsync), refData.Length);

                // Double
                await TestValidConversionAsync(fieldReader, entry, nameof(fieldReader.ReadDoubleFieldAsync), refData);

                // Rational
                await TestInvalidConversionAsync <TiffRational>(fieldReader, entry, nameof(fieldReader.ReadRationalFieldAsync), refData.Length);

                // SRational
                await TestInvalidConversionAsync <TiffSRational>(fieldReader, entry, nameof(fieldReader.ReadSRationalFieldAsync), refData.Length);
            }
        }
Ejemplo n.º 2
0
        public async Task TestSLongCompatibility(int length, bool bigTiff)
        {
            int[] refData = new int[length];
            new Random(42).NextBytes(MemoryMarshal.AsBytes(refData.AsSpan()));

            using Stream stream = await GenerateTiffAsync(bigTiff, async ifd =>
            {
                await ifd.WriteTagAsync((TiffTag) 0x1234, TiffValueCollection.UnsafeWrap(refData));
            });

            await using (TiffFileReader reader = await TiffFileReader.OpenAsync(stream, leaveOpen: true))
            {
                TiffImageFileDirectory ifd = await reader.ReadImageFileDirectoryAsync();

                TiffFieldReader fieldReader = await reader.CreateFieldReaderAsync();

                TiffImageFileDirectoryEntry entry = ifd.FindEntry((TiffTag)0x1234);
                Assert.Equal((TiffTag)0x1234, entry.Tag);

                // Byte
                await TestInvalidConversionAsync <byte>(fieldReader, entry, nameof(fieldReader.ReadByteFieldAsync), refData.Length);

                // SSbyte
                await TestInvalidConversionAsync <sbyte>(fieldReader, entry, nameof(fieldReader.ReadSByteFieldAsync), refData.Length);

                // Short
                await TestInvalidConversionAsync <ushort>(fieldReader, entry, nameof(fieldReader.ReadShortFieldAsync), refData.Length);

                // SShort
                await TestInvalidConversionAsync <short>(fieldReader, entry, nameof(fieldReader.ReadSShortFieldAsync), refData.Length);

                // Long
                await TestValidConversionAsync(fieldReader, entry, nameof(fieldReader.ReadLongFieldAsync), Array.ConvertAll(refData, v => (uint)v));

                // SLong
                await TestValidConversionAsync(fieldReader, entry, nameof(fieldReader.ReadSLongFieldAsync), refData);

                // Float
                await TestInvalidConversionAsync <float>(fieldReader, entry, nameof(fieldReader.ReadFloatFieldAsync), refData.Length);

                // Double
                await TestInvalidConversionAsync <double>(fieldReader, entry, nameof(fieldReader.ReadDoubleFieldAsync), refData.Length);

                // Rational
                await TestInvalidConversionAsync <TiffRational>(fieldReader, entry, nameof(fieldReader.ReadRationalFieldAsync), refData.Length);

                // SRational
                await TestValidConversionAsync(fieldReader, entry, nameof(fieldReader.ReadSRationalFieldAsync), Array.ConvertAll(refData, v => new TiffSRational(v, 1)));
            }
        }