public void TestGetNextMessageAsStringCanReadEmptyString()
{
//given
String expected = "";
byte[] inputBuffer = new byte[20];
byte[] textBytes = Encoding.UTF8.GetBytes(expected);
byte[] lengthBytes = BitConverter.GetBytes((ushort)textBytes.Length);
if (!BitConverter.IsLittleEndian)
{
Array.Reverse(lengthBytes);
}
Array.Copy(lengthBytes, 0, inputBuffer, 0, 2);
Array.Copy(textBytes, 0, inputBuffer, 2, textBytes.Length);
Stream stream = new MemoryStream(inputBuffer);
RawMessageReader reader = new RawMessageReader(
(buffer, count, offset) => stream.Read(buffer, offset, count));
//when
String actual = reader.GetNextMessageAsString();
//then
Assert.AreEqual(expected, actual);
stream.Dispose();
}
public void TestGetNextMessageAsStringCanReadStringOfLength8KiB()
{
//given
StringBuilder sb = new StringBuilder();
for (int i = 0; i < 8192; i++)
{
sb.Append("a");
}
string expected = sb.ToString();
byte[] inputBuffer = new byte[8194];
byte[] textBytes = Encoding.UTF8.GetBytes(expected);
byte[] lengthBytes = BitConverter.GetBytes((ushort)textBytes.Length);
if (!BitConverter.IsLittleEndian)
{
Array.Reverse(lengthBytes);
}
Array.Copy(lengthBytes, 0, inputBuffer, 0, 2);
Array.Copy(textBytes, 0, inputBuffer, 2, textBytes.Length);
Stream stream = new MemoryStream(inputBuffer);
RawMessageReader reader = new RawMessageReader(
(buffer, count, offset) => stream.Read(buffer, offset, count));
//when
String actual = reader.GetNextMessageAsString();
//then
Assert.AreEqual(expected, actual);
stream.Dispose();
}
private string GetNextMessageAsString(RawMessageReader reader)
{
try
{
return(reader.GetNextMessageAsString());
}
catch (Exception e)
{
throw new DisconnectedException(e);
}
}
public void TestGetNextMessageAsStringThrowsExceptionOnInvalidRead()
{
//given
var stream = new MemoryStream(new byte[] { 1 });
RawMessageReader reader = new RawMessageReader(
(buffer, count, offset) => stream.Read(buffer, offset, count));
//when
String result = reader.GetNextMessageAsString();
//then
//throws exception
stream.Dispose();
}
