public void StreamWithoutPreamble(Encoding encoding, bool includePreambleInInputStream)
{
using (MemoryStream inputStream = new MemoryStream())
{
// Arrange
string message =
"Hello, world"
+ Environment.NewLine // English
+ "こんにちは、世界"
+ Environment.NewLine // Japanese
+ "مرحبا، العالم"; // Arabic
byte[] preamble = encoding.GetPreamble();
byte[] encodedMessage = encoding.GetBytes(message);
if (includePreambleInInputStream)
{
inputStream.Write(preamble, 0, preamble.Length);
}
inputStream.Write(encodedMessage, 0, encodedMessage.Length);
byte[] expectedBytes = new byte[preamble.Length + encodedMessage.Length];
preamble.CopyTo(expectedBytes, 0);
encodedMessage.CopyTo(expectedBytes, preamble.Length);
inputStream.Seek(0, SeekOrigin.Begin);
using (
ReadOnlyStreamWithEncodingPreamble wrapperStream =
new ReadOnlyStreamWithEncodingPreamble(inputStream, encoding)
)
{
// Act
int totalRead = 0;
byte[] readBuffer = new byte[expectedBytes.Length];
while (totalRead < readBuffer.Length)
{
int read = wrapperStream.Read(
readBuffer,
totalRead,
readBuffer.Length - totalRead
);
totalRead += read;
if (read == 0)
{
break;
}
}
// Assert
Assert.Equal(expectedBytes.Length, totalRead);
Assert.Equal(expectedBytes, readBuffer);
Assert.Equal(0, wrapperStream.Read(readBuffer, 0, 1)); // Make sure there are no stray bytes left in the stream
}
}
}
public void StreamWithoutPreamble(Encoding encoding, bool includePreambleInInputStream)
{
using (MemoryStream inputStream = new MemoryStream())
{
// Arrange
string message = "Hello, world" + Environment.NewLine // English
+ "こんにちは、世界" + Environment.NewLine // Japanese
+ "مرحبا، العالم"; // Arabic
byte[] preamble = encoding.GetPreamble();
byte[] encodedMessage = encoding.GetBytes(message);
if (includePreambleInInputStream)
{
inputStream.Write(preamble, 0, preamble.Length);
}
inputStream.Write(encodedMessage, 0, encodedMessage.Length);
byte[] expectedBytes = new byte[preamble.Length + encodedMessage.Length];
preamble.CopyTo(expectedBytes, 0);
encodedMessage.CopyTo(expectedBytes, preamble.Length);
inputStream.Seek(0, SeekOrigin.Begin);
using (ReadOnlyStreamWithEncodingPreamble wrapperStream = new ReadOnlyStreamWithEncodingPreamble(inputStream, encoding))
{
// Act
int totalRead = 0;
byte[] readBuffer = new byte[expectedBytes.Length];
while (totalRead < readBuffer.Length)
{
int read = wrapperStream.Read(readBuffer, totalRead, readBuffer.Length - totalRead);
totalRead += read;
if (read == 0)
break;
}
// Assert
Assert.Equal(expectedBytes.Length, totalRead);
Assert.Equal(expectedBytes, readBuffer);
Assert.Equal(0, wrapperStream.Read(readBuffer, 0, 1)); // Make sure there are no stray bytes left in the stream
}
}
}
