C# BufferedStream.WriteByte方法代码示例

        public async Task ShouldAlwaysFlushUnderlyingStreamIfWritable(bool underlyingCanRead, bool underlyingCanSeek)
        {
            var underlying = new DelegateStream(
                canReadFunc: () => underlyingCanRead,
                canWriteFunc: () => true,
                canSeekFunc: () => underlyingCanSeek,
                readFunc: (_, __, ___) => 123,
                writeFunc: (_, __, ___) => { },
                seekFunc: (_, __) => 123L
            );

            var wrapper = new CallTrackingStream(underlying);

            var buffered = new BufferedStream(wrapper);
            
            buffered.Flush();
            Assert.Equal(1, wrapper.TimesCalled(nameof(wrapper.Flush)));

            await buffered.FlushAsync();
            Assert.Equal(1, wrapper.TimesCalled(nameof(wrapper.FlushAsync)));

            buffered.WriteByte(0);
            
            buffered.Flush();
            Assert.Equal(2, wrapper.TimesCalled(nameof(wrapper.Flush)));

            await buffered.FlushAsync();
            Assert.Equal(2, wrapper.TimesCalled(nameof(wrapper.FlushAsync)));
        }

        public void UnderlyingStreamThrowsExceptions()
        {
            var stream = new BufferedStream(new ThrowsExceptionFromAsyncOperationsStream());

            Assert.Equal(TaskStatus.Faulted, stream.ReadAsync(new byte[1], 0, 1).Status);

            Assert.Equal(TaskStatus.Faulted, stream.WriteAsync(new byte[10000], 0, 10000).Status);

            stream.WriteByte(1);
            Assert.Equal(TaskStatus.Faulted, stream.FlushAsync().Status);
        }

        public async Task CopyToAsyncTest_RequiresAsyncFlushingOfWrites()
        {
            byte[] data = Enumerable.Range(0, 1000).Select(i => (byte)(i % 256)).ToArray();

            var manualReleaseStream = new ManuallyReleaseAsyncOperationsStream();
            var src = new BufferedStream(manualReleaseStream);
            src.Write(data, 0, data.Length);
            src.Position = 0;

            var dst = new MemoryStream();

            data[0] = 42;
            src.WriteByte(42);
            dst.WriteByte(42);

            Task copyTask = src.CopyToAsync(dst);
            manualReleaseStream.Release();
            await copyTask;

            Assert.Equal(data, dst.ToArray());
        }

	public bool runTest()
	{
		Console.WriteLine(s_strTFPath + "\\" + s_strTFName + " , for " + s_strClassMethod + " , Source ver " + s_strDtTmVer);
		int iCountErrors = 0;
		int iCountTestcases = 0;
		String strLoc = "Loc_000oo";
		String strValue = String.Empty;
		try
		{
			FileStream fs2;
			MemoryStream ms2;
			BufferedStream bs2;
			String filName = s_strTFAbbrev + "TestFile.tmp";
			Int32 ii = 0;
			Byte[] bytArr;
			Int32 i32;
			bytArr = new Byte[] {
				Byte.MinValue
				,Byte.MaxValue
				,100
				,Byte.MaxValue-100
			};
			if(File.Exists(filName))
				File.Delete(filName);
			strLoc = "Loc_8yfv7";
			fs2 = new FileStream(filName, FileMode.Create);
			bs2 = new BufferedStream(fs2);
			for(ii = 0 ; ii < bytArr.Length ; ii++)
				bs2.WriteByte(bytArr[ii]);		   
			bs2.Flush();
			bs2.Close();
			strLoc = "Loc_987hg";
			fs2 = new FileStream(filName, FileMode.Open);
			bs2 = new BufferedStream(fs2);
			for(ii = 0 ; ii < bytArr.Length ;ii++) {
				iCountTestcases++;
				if((i32 = bs2.ReadByte()) != bytArr[ii]) {
					iCountErrors++;
					printerr( "Error_298hg_"+ii+"! Expected=="+bytArr[ii]+" , got=="+i32);
				}
			}
			i32 = bs2.ReadByte();
			if(i32 != -1) {
				iCountErrors++;
				printerr( "Error_2389! -1 return expected, i32=="+i32);
			} 
			fs2.Close();
			strLoc = "Loc_398yc";
			ms2 = new MemoryStream();
			bs2 = new BufferedStream(ms2);
			for(ii = 0 ; ii < bytArr.Length ; ii++)
				bs2.WriteByte(bytArr[ii]);
			bs2.Flush();
			bs2.Position = 0;
			bs2.Flush();
			for(ii = 0 ; ii < bytArr.Length ; ii++) {
				iCountTestcases++;
				if((i32 = bs2.ReadByte()) != bytArr[ii]) {
					iCountErrors++;
					printerr( "Error_38yv8_"+ii+"! Expected=="+bytArr[ii]+", got=="+i32);
				}
			}
			i32 = bs2.ReadByte();
			if(i32 != -1) {
				iCountErrors++;
				printerr( "Error_238v8! -1 return expected, i32=="+i32);
			}
			bs2.Position = 0;
			for(ii = 0 ; ii < bytArr.Length; ii++)
				bs2.WriteByte(bytArr[ii]);
			if(File.Exists(filName))
				File.Delete(filName);
		} catch (Exception exc_general ) {
			++iCountErrors;
			Console.WriteLine (s_strTFAbbrev + " : Error Err_8888yyy!  strLoc=="+ strLoc +", exc_general=="+exc_general.ToString());
		}
		if ( iCountErrors == 0 )
		{
			Console.WriteLine( "paSs. "+s_strTFName+" ,iCountTestcases=="+iCountTestcases.ToString());
			return true;
		}
		else
		{
			Console.WriteLine("FAiL! "+s_strTFName+" ,iCountErrors=="+iCountErrors.ToString()+" , BugNums?: "+s_strActiveBugNums );
			return false;
		}
	}

 public static void Teleport(string address) 
 {
     TcpClient tcpClient = new TcpClient();
     IPEndPoint epSend = null;
     IPAddress sendAddress = IPAddress.Parse(address);			
     epSend = new IPEndPoint(sendAddress, iPortNumber);
     tcpClient.Connect(epSend);
     Stream stream = tcpClient.GetStream();
     BufferedStream bs = new BufferedStream( stream);
     for(int iLoop = 0 ; iLoop < 100 ; iLoop++)
         bs.WriteByte( Convert.ToByte( iLoop ));
     bs.Flush();
 }