Initial commit

source/test/MyTelegram.Schema.Tests/Serializer/Int128SerializerTests.cs

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+using System.Buffers;
+using MyTelegram.Schema.Extensions;
+
+namespace MyTelegram.Schema.Serializer;
+
+public class Int128SerializerTests
+{
+    [Fact]
+    public void SerializeTest()
+    {
+        var value = "C0CC11F66E1111B8529BB89742D77959".ToBytes();
+        //var stream = new MemoryStream();
+        //var bw = new BinaryWriter(stream);
+        using var writer = new ArrayPoolBufferWriter<byte>();
+        var serializer = CreateSerializer();
+
+        serializer.Serialize(value, writer);
+
+        writer.WrittenSpan.ToArray().ShouldBeEquivalentTo(value);
+    }
+
+    [Fact]
+    public void DeserializeTest()
+    {
+        var expectedBytes = "C0CC11F66E1111B8529BB89742D77959".ToBytes();
+        //var stream = new MemoryStream(expectedBytes);
+        //var br = new BinaryReader(stream);
+        var serializer = CreateSerializer();
+        //var reader = new SequenceReader<byte>(new ReadOnlySequence<byte>(expectedBytes));
+        ReadOnlyMemory<byte> buffer = expectedBytes;
+        var actualBytes = serializer.Deserialize(ref buffer);
+
+        actualBytes.ShouldBeEquivalentTo(expectedBytes);
+    }
+
+    private Int128Serializer CreateSerializer() => new();
+}