Initial commit

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

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+using System.Buffers;
+using MyTelegram.Schema.Extensions;
+
+namespace MyTelegram.Schema.Serializer;
+
+public class BitArraySerializerTests
+{
+    [Fact]
+    public void SerializeTest()
+    {
+        var value = new BitArray(32) { [0] = true };
+        var expectedValue = "01000000".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(expectedValue);
+    }
+
+    [MemberData(nameof(GetData), parameters: new[] { 0 })]
+    [MemberData(nameof(GetData), parameters: new[] { 1 })]
+    [MemberData(nameof(GetData), parameters: new[] { 2 })]
+    [MemberData(nameof(GetData), parameters: new[] { 31 })]
+    [MemberData(nameof(GetData), parameters: new[] { 1, 2 })]
+    [MemberData(nameof(GetData), parameters: new[] { 1, 2, 3 })]
+    [MemberData(nameof(GetData), parameters: new[] { 1, 2, 31 })]
+    [Theory]
+    public void DeserializeTest(byte[] value, BitArray expectedValue)
+    {
+        //var stream = new MemoryStream(value);
+        //var br = new BinaryReader(stream);
+        var serializer = CreateSerializer();
+        ReadOnlyMemory<byte> buffer = value;
+        var actualValue = serializer.Deserialize(ref buffer);
+
+        actualValue.ShouldBeEquivalentTo(expectedValue);
+    }
+
+    public static IEnumerable<object[]> GetData(params int[] bitOfNSetToTrue)
+    {
+        var bitArray = new BitArray(32);
+        foreach (var i in bitOfNSetToTrue)
+        {
+            bitArray.Set(i, true);
+        }
+
+        var buffer = new byte[4];
+        bitArray.CopyTo(buffer, 0);
+
+        var allData = new List<object[]> { new object[] { buffer, bitArray } };
+
+        return allData;
+    }
+
+    private BitArraySerializer CreateSerializer() => new();
+}