public void ConcatStreamReadTest(ConcatStream cs, BufferType bufferType, int offset, int length, ReadResult expectedResult)
{
ConcatStreamReadTestVerification(bufferType, offset, length, expectedResult);
byte[] buffer = bufferType == BufferType.Null ? null : new byte[5];
switch (expectedResult)
{
case ReadResult.NullException:
case ReadResult.ArgumentException:
case ReadResult.OutOfRangeException:
TestDelegate testDelegate = () =>
{
cs.Read(buffer, offset, length);
};
switch (expectedResult)
{
case ReadResult.NullException: Assert.Throws <System.ArgumentNullException>(testDelegate); break;
case ReadResult.ArgumentException: Assert.Throws <System.ArgumentException>(testDelegate); break;
case ReadResult.OutOfRangeException: Assert.Throws <System.ArgumentOutOfRangeException>(testDelegate); break;
}
break;
case ReadResult.ZeroResult:
var result = cs.Read(buffer, offset, length);
Assert.That(result, Is.Zero);
if (bufferType == BufferType.Instance)
{
Assert.That(buffer, Is.All.Zero);
}
break;
case ReadResult.NonZeroResult:
result = cs.Read(buffer, offset, length);
Assert.That(result, Is.Not.Zero);
if (bufferType == BufferType.Instance)
{
for (int i = offset; i < (result + offset); i++)
{
Assert.That(buffer[i], Is.EqualTo(ReadingSourceData[ReadingSourceNotEmpty][i - offset]));
}
}
break;
default:
Assert.Fail($"Unknown {nameof(expectedResult)}: {expectedResult}");
break;
}
}
public void AttemptToReadMoreBytesThanAvailableFromConcatStream()
{
// Arrange
byte[] buffer = new byte[1046];
byte[] buffer1 = Encoding.ASCII.GetBytes("123");
byte[] buffer2 = Encoding.ASCII.GetBytes("456");
byte[] expectedBuffer = new byte[buffer1.Length + buffer2.Length + 4];
System.Buffer.BlockCopy(buffer1, 0, expectedBuffer, 0, buffer1.Length);
System.Buffer.BlockCopy(buffer2, 0, expectedBuffer, buffer1.Length, buffer2.Length);
MemoryStream stream1 = new MemoryStream(buffer1);
MemoryStream stream2 = new MemoryStream(buffer2);
ConcatStream streamToTest = new ConcatStream(stream1, stream2);
// Act
int numberOfBytesRead = streamToTest.Read(buffer, 0, expectedBuffer.Length);
//Assert
Assert.IsTrue(streamToTest.CanSeek);
Assert.AreEqual(streamToTest.Length, numberOfBytesRead);
for (int i = 0; i < streamToTest.Length; i++)
{
Assert.AreEqual(expectedBuffer[i], buffer[i]);
}
}
public void basicConcatStreamSeek()
{
byte[] writeBuffer = new byte[14];
byte[] readBuffer = new byte[14];
MemoryStream s1 = new MemoryStream();
MemoryStream s2 = new MemoryStream();
ConcatStream testCS = new ConcatStream(s1, s2);
for (int i = 0; i < 14; i++)
{
writeBuffer[i] = Convert.ToByte(i);
}
s1.Write(writeBuffer, 0, 6);
s2.Write(writeBuffer, 6, 8);
s1.Seek(0, SeekOrigin.Begin);
s2.Seek(0, SeekOrigin.Begin);
testCS.Read(readBuffer, 0, 14);
Assert.AreEqual(14, testCS.Position);
testCS.Seek(0, SeekOrigin.Begin);
Assert.AreEqual(0, testCS.Position);
Assert.AreEqual(0, s1.Position);
Assert.AreEqual(0, s2.Position);
}
public void ReadFromFirstStreamOnly()
{
// Arrange
byte[] buffer = new byte[1046];
byte[] buffer1 = Encoding.ASCII.GetBytes("123");
byte[] buffer2 = Encoding.ASCII.GetBytes("456");
byte[] expectedBuffer = new byte[buffer1.Length + buffer2.Length];
System.Buffer.BlockCopy(buffer1, 0, expectedBuffer, 0, buffer1.Length);
System.Buffer.BlockCopy(buffer2, 0, expectedBuffer, buffer1.Length, buffer2.Length);
MemoryStream stream1 = new MemoryStream(buffer1);
NoSeekMemoryStream stream2 = new NoSeekMemoryStream(buffer2);
ConcatStream streamToTest = new ConcatStream(stream1, stream2);
// Act
int numberOfBytesRead = streamToTest.Read(buffer, 0, buffer1.Length);
//Assert
Assert.IsFalse(streamToTest.CanSeek);
Assert.AreEqual(buffer1.Length, numberOfBytesRead);
for (int i = 0; i < buffer1.Length; i++)
{
Assert.AreEqual(buffer1[i], buffer[i]);
}
}
public void ReadFromSecondStreamOnly()
{
// Arrange
byte[] buffer = new byte[1046];
byte[] buffer1 = Encoding.ASCII.GetBytes("123");
byte[] buffer2 = Encoding.ASCII.GetBytes("456");
byte[] expectedBuffer = new byte[buffer1.Length + buffer2.Length];
System.Buffer.BlockCopy(buffer1, 0, expectedBuffer, 0, buffer1.Length);
System.Buffer.BlockCopy(buffer2, 0, expectedBuffer, buffer1.Length, buffer2.Length);
MemoryStream stream1 = new MemoryStream(buffer1);
MemoryStream stream2 = new MemoryStream(buffer2);
ConcatStream streamToTest = new ConcatStream(stream1, stream2);
streamToTest.Position = buffer1.Length;
Console.WriteLine(buffer1.Length.ToString());
Console.WriteLine("Position " + streamToTest.Position.ToString());
Console.WriteLine("Length " + streamToTest.Length.ToString());
// Act
int numberOfBytesRead = streamToTest.Read(buffer, 0, buffer2.Length);
//Assert
Assert.AreEqual(3, numberOfBytesRead);
for (int i = 0; i < buffer2.Length; i++)
{
Console.WriteLine("buffer[i]" + buffer[i].ToString());
Console.WriteLine("buffer2[i]" + buffer2[i].ToString());
Assert.AreEqual(buffer2[i], buffer[i]);
}
}
public void EmptyStreamReadZero()
{
var cs = new ConcatStream();
var buffer = new byte[0];
var res = cs.Read(buffer, 0, 0);
Assert.That(res, Is.Zero);
}
public void ConcatStreamTest()
{
ConcatStream cstr = new ConcatStream(new MemoryStream(Encoding.ASCII.GetBytes("newstream")), new NoSeekMemoryStream(Encoding.ASCII.GetBytes("newstream2")));
byte[] buf = new byte[19];
cstr.Read(buf, 0, 19);
string str = Encoding.ASCII.GetString(buf);
Assert.That("newstreamnewstream2" == str);
}
//[Test()]
public void ConcatStreamTest()
{
byte[] buffer1 = new byte[10];
byte[] buffer2 = new byte[10];
ConcatStream stream = new ConcatStream(new MemoryStream(buffer1), new NoSeekMemoryStream(buffer2));
stream.Read(new byte[20], 0, 20);
stream.Seek(0, SeekOrigin.Begin);
}
public void OnePopulatedStreamReadZero()
{
var cs = new ConcatStream();
cs.AppendSource(concatStreamSourceData);
var buffer = new byte[0];
var res = cs.Read(buffer, 0, 0);
Assert.That(res, Is.Zero);
concatStreamSourceData.DidNotReceiveWithAnyArgs().Read(null, 0, 0);
}
public void WriteTest()
{
ConcatStream cstr = new ConcatStream(new MemoryStream(Encoding.ASCII.GetBytes("newstream")), new MemoryStream());
string newStr = "stringthatshouldoverwriteeverythingelse";
cstr.Write(Encoding.ASCII.GetBytes(newStr), 0, newStr.Length);
cstr.Seek(0, SeekOrigin.Begin);
byte[] buf = new byte[newStr.Length];
cstr.Read(buf, 0, newStr.Length);
Assert.That(newStr == Encoding.ASCII.GetString(buf));
}
public void randomConcatStreamRead()
{
Random rnd = new Random();
int read = 0;
int ceiling = 14;
int offset = 0;
int floor = 1;
read = rnd.Next(floor, ceiling - offset);
//set up buffers
byte[] writeBuffer = new byte[14];
byte[] readBuffer = new byte[14];
//setUp streams
MemoryStream s1 = new MemoryStream();
MemoryStream s2 = new MemoryStream();
for (int i = 0; i < 14; i++)
{
writeBuffer [i] = Convert.ToByte(i);
}
s1.Write(writeBuffer, 0, 6);
s2.Write(writeBuffer, 6, 8);
s1.Seek(0, SeekOrigin.Begin);
s2.Seek(0, SeekOrigin.Begin);
ConcatStream testCS = new ConcatStream(s1, s2);
while (ceiling != offset)
{
testCS.Read(readBuffer, offset, read);
for (int i = 0; i < read; i++)
{
Assert.AreEqual(writeBuffer [offset + i], readBuffer [offset + i]);
}
offset += read;
if (offset != ceiling)
{
read = rnd.Next(floor, ceiling - offset);
}
}
}
public void boundaryRead()
{
byte[] writeBuffer = new byte[14];
byte[] readBuffer = new byte[1];
int read1;
int read2;
MemoryStream s1 = new MemoryStream();
MemoryStream s2 = new MemoryStream();
for (int i = 0; i < 14; i++)
{
writeBuffer[i] = Convert.ToByte(i);
}
s1.Write(writeBuffer, 0, 6);
s2.Write(writeBuffer, 6, 8);
s1.Seek(0, SeekOrigin.Begin);
s2.Seek(0, SeekOrigin.Begin);
ConcatStream testCS = new ConcatStream(s1, s2);
long length = testCS.Length;
testCS.Seek(length - 1, SeekOrigin.Begin);
long position = testCS.Position;
read1 = testCS.Read(readBuffer, 0, 1);
read2 = testCS.Read(readBuffer, 0, 1);
int x = 0;
Assert.AreEqual(13, readBuffer [0]);
}
public void EmptyStreamReadOne()
{
var cs = new ConcatStream();
var buffer = new byte[1];
Assert.That(buffer[0], Is.Zero);
var res = cs.Read(buffer, 0, 1);
Assert.That(res, Is.Zero);
Assert.That(buffer[0], Is.Zero);
}
public static void ReadAll(int bufferSize)
{
var buffer = new byte[bufferSize];
var sb = new StringBuilder();
while (true)
{
var read = Stream.Read(buffer, 0, buffer.Length);
if (read == 0)
{
break;
}
sb.Append(Encoding.UTF8.GetChars(buffer, 0, read));
}
Result = sb.ToString();
}
public void ReadTest()
{
MemoryStream str = new MemoryStream(Encoding.ASCII.GetBytes("newstreamnewstream2"));
ConcatStream cstr = new ConcatStream(new MemoryStream(Encoding.ASCII.GetBytes("newstream")), new MemoryStream(Encoding.ASCII.GetBytes("newstream2")), 50);
Random rand = new Random();
for (int i = 0; i < 19;)
{
int num = rand.Next() % 10;
i += num;
byte[] buf1 = new byte[10];
byte[] buf2 = new byte[10];
str.Read(buf1, 0, num);
cstr.Read(buf2, 0, num);
Assert.That(buf1.SequenceEqual(buf2));
}
}
public static void Main(string[] args)
{
byte[] result = new byte[1046];
byte[] buffer1 = Encoding.ASCII.GetBytes("123");
byte[] buffer2 = Encoding.ASCII.GetBytes("456");
byte[] bufferToWrite = Encoding.ASCII.GetBytes("abcdef");
MemoryStream stream1 = new MemoryStream(buffer1);
MemoryStream stream2 = new MemoryStream(buffer2);
ConcatStream streamToTest = new ConcatStream(stream1, stream2);
streamToTest.Position = 5;
streamToTest.SetSeek = false;
Assert.IsFalse(streamToTest.CanSeek);
streamToTest.Write(bufferToWrite, 0, 2);
streamToTest.SecondStream.Position = 2;
int bytesRead = streamToTest.Read(result, 0, 2);
}
public void OnePopulatedStreamReadOne()
{
concatStreamSourceData.Read(Arg.Is <byte[]>(x => x != null), 0, 1).Returns(1).AndDoes(i => i.ArgAt <byte[]>(0)[0] = 10);
var cs = new ConcatStream();
cs.AppendSource(concatStreamSourceData);
var buffer = new byte[1];
Assert.That(buffer[0], Is.Zero);
var res = cs.Read(buffer, 0, 1);
Assert.That(res, Is.EqualTo(1));
Assert.That(buffer[0], Is.EqualTo(10));
concatStreamSourceData.Received().Read(Arg.Any <byte[]>(), 0, 1);
}
public void AttemptToReadPastEndOfNoSeekStreamShouldOnlyReadToEndOfStream()
{
byte[] result = new byte[100];
byte[] buffer = Encoding.ASCII.GetBytes("12345");
byte[] expected = Encoding.ASCII.GetBytes("1234512345");
MemoryStream stream1 = new MemoryStream(buffer);
NoSeekMemoryStream stream2 = new NoSeekMemoryStream(buffer);
ConcatStream streamToTest = new ConcatStream(stream1, stream2);
// Act
int bytesRead = streamToTest.Read(result, 0, expected.Length + 5);
//Assert
Assert.AreEqual(expected.Length, bytesRead);
for (int i = 0; i < expected.Length; i++)
{
Assert.AreEqual(expected[i], result[i]);
}
Assert.AreEqual(expected.Length, bytesRead);
}
public void SystemIOReadPassthrough()
{
// As calls are simply passed through to the stream, it's Stream dependent. So just make sure the stream was effected
var data = new System.IO.MemoryStream(new byte[10]);
var cs = new ConcatStream();
cs.Append(data);
Assert.That(cs.Position, Is.Zero);
Assert.That(data.Position, Is.Zero);
var buffer = new byte[5];
var read = cs.Read(buffer, 0, 3);
Assert.That(read, Is.EqualTo(3));
Assert.That(cs.Position, Is.EqualTo(3));
Assert.That(data.Position, Is.EqualTo(3));
}
public void ReadBackStreamDataInRandomChunks()
{
// Arrange
byte[] result = new byte[1046];
byte[] buffer1 = Encoding.ASCII.GetBytes("123");
byte[] buffer2 = Encoding.ASCII.GetBytes("456");
byte[] expected = Encoding.ASCII.GetBytes("123456");
MemoryStream stream1 = new MemoryStream(buffer1);
MemoryStream stream2 = new MemoryStream(buffer2);
ConcatStream streamToTest = new ConcatStream(stream1, stream2);
Random random = new Random();
int bytesRead = 0;
int bytesToRead = 0;
int totalBytesLeft = (int)(stream1.Length + stream2.Length);
int i = 0;
int offset = 0;
// Act
while (totalBytesLeft != 0)
{
bytesToRead = random.Next(1, totalBytesLeft);
bytesRead = streamToTest.Read(result, offset, bytesToRead);
Console.WriteLine("bytesRead " + bytesRead);
for (i = 0; i < bytesRead; i++)
{
Console.WriteLine("expected[i]" + expected[i]);
Console.WriteLine("result[i]" + result[i]);
Assert.AreEqual(expected[i], result[i]);
}
totalBytesLeft -= bytesRead;
offset += bytesRead;
if (bytesRead == 0)
{
break;
}
}
}
public void WritePastEndOfConcatStreamThatDoesNotSupportLengthShouldExpandStream()
{
// Arrange
byte[] result = new byte[100];
byte[] bufferToWrite = Encoding.ASCII.GetBytes("12345");
MemoryStream stream1 = new MemoryStream();
NoSeekMemoryStream stream2 = new NoSeekMemoryStream();
ConcatStream streamToTest = new ConcatStream(stream1, stream2);
// Act
streamToTest.Write(bufferToWrite, 0, bufferToWrite.Length);
streamToTest.Position = 0;
int bytesRead = streamToTest.Read(result, 0, bufferToWrite.Length);
//Assert
Assert.AreEqual(bufferToWrite.Length, bytesRead);
for (int i = 0; i < bufferToWrite.Length; i++)
{
Assert.AreEqual(bufferToWrite[i], result[i]);
}
}
public void TwoStreamsReadTwo()
{
concatStreamSourceData.Position.Returns(StreamSourceDefaultLength - 1);
concatStreamSourceData.Read(Arg.Any <byte[]>(), 0, 2).Returns(1);
concatStreamSourceData.Read(Arg.Any <byte[]>(), 1, 1).Returns(0);
concatStreamSourceNoData.Length.Returns(StreamSourceDefaultLength); // Just to prevent making and setting up a new mock
concatStreamSourceNoData.Read(Arg.Any <byte[]>(), 1, 1).Returns(1);
var cs = new ConcatStream();
cs.AppendSource(concatStreamSourceData);
cs.AppendSource(concatStreamSourceNoData);
var buffer = new byte[2];
var count = cs.Read(buffer, 0, 2);
Assert.That(count, Is.EqualTo(2));
concatStreamSourceData.ReceivedWithAnyArgs(2).Read(null, 0, 0);
concatStreamSourceNoData.Received(1).Read(Arg.Any <byte[]>(), 1, 1);
}
public void AttemptToReadPastEndStreamShouldOnlyReadToEndOfStream()
{
byte[] result = new byte[100];
byte[] bufferToWrite = Encoding.ASCII.GetBytes("12345");
MemoryStream stream1 = new MemoryStream();
MemoryStream stream2 = new MemoryStream();
ConcatStream streamToTest = new ConcatStream(stream1, stream2);
// Act
streamToTest.Write(bufferToWrite, 0, bufferToWrite.Length);
streamToTest.Position = 0;
int bytesRead = streamToTest.Read(result, 0, bufferToWrite.Length + 5);
//Assert
Assert.AreEqual(bufferToWrite.Length, bytesRead);
for (int i = 0; i < bufferToWrite.Length; i++)
{
Assert.AreEqual(bufferToWrite[i], result[i]);
}
Assert.AreEqual(bufferToWrite.Length, streamToTest.Position);
}
public void OnePopulatedStreamReadOnePositionIsLength()
{
concatStreamSourceData.Position.Returns(1);
concatStreamSourceData.Length.Returns(1);
concatStreamSourceData.Read(null, 0, 0).ReturnsForAnyArgs(0);
var cs = new ConcatStream();
cs.AppendSource(concatStreamSourceData);
var buffer = new byte[1];
Assert.That(buffer[0], Is.Zero);
var res = cs.Read(buffer, 0, 1);
Assert.That(res, Is.Zero);
Assert.That(buffer[0], Is.Zero);
concatStreamSourceData.Received().Read(Arg.Any <byte[]>(), 0, 1);
}
public void basicNoSeekConcatStreamRead()
{
byte[] writeBuffer = new byte[14];
byte[] writeBuffer2 = new byte[8];
byte[] readBuffer = new byte[14];
MemoryStream s1 = new MemoryStream();
for (int i = 0; i < 14; i++)
{
writeBuffer[i] = Convert.ToByte(i);
}
s1.Write(writeBuffer, 0, 6);
//s2.Write (writeBuffer, 6, 8);
for (int i = 0; i < 8; i++)
{
writeBuffer2[i] = Convert.ToByte(i + 6);
}
NoSeekMemoryStream s2 = new NoSeekMemoryStream(writeBuffer2);
ConcatStream testCS = new ConcatStream(s1, s2);
s1.Seek(0, SeekOrigin.Begin);
//s2.Seek (0, SeekOrigin.Begin);
testCS.Read(readBuffer, 0, 14);
s1.Seek(0, SeekOrigin.Begin);
for (int i = 0; i < readBuffer.Length; i++)
{
Assert.AreEqual(readBuffer[i], writeBuffer [i]);
}
}
public static void Main(string[] args)
{
MemoryStream ms = new MemoryStream(10);
MemoryStream ms2 = new MemoryStream(10);
byte[] buffer = new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
ms.Write(buffer, 0, 10);
ms2.Write(buffer, 0, 10);
//ConcatStream concatStream = new ConcatStream(ms, ms2);
byte[] buffer2 = new byte[20];
ConcatStream concatStream = new ConcatStream(ms, ms2);
concatStream.Read(buffer2, 0, 15);
for (int i = 0; i < 15; i++)
{
Console.WriteLine(buffer2[i]);
}
}
public void WriteOverMiddleBoundryOfBothStreamsWithSeekEnabled()
{
// Arrange
byte[] result = new byte[1046];
byte[] buffer1 = Encoding.ASCII.GetBytes("123");
byte[] buffer2 = Encoding.ASCII.GetBytes("456");
byte[] bufferToWrite = Encoding.ASCII.GetBytes("abcdef");
MemoryStream stream1 = new MemoryStream(buffer1);
MemoryStream stream2 = new MemoryStream(buffer2);
ConcatStream streamToTest = new ConcatStream(stream1, stream2);
// Act
streamToTest.Write(bufferToWrite, 0, bufferToWrite.Length);
streamToTest.Position = 0;
streamToTest.Read(result, 0, bufferToWrite.Length);
for (int i = 0; i < bufferToWrite.Length; i++)
{
Console.WriteLine("Position " + streamToTest.Position);
Console.WriteLine("result[i]: " + result[i]);
Assert.AreEqual(bufferToWrite[i], result[i]);
}
}
public void ReadAllBytesFromConcatStreamThatHasNoSeekAsSecondStream()
{
// Arrange
byte[] buffer = new byte[1046];
byte[] buffer1 = Encoding.ASCII.GetBytes("123");
byte[] buffer2 = Encoding.ASCII.GetBytes("456");
byte[] expectedBuffer = Encoding.ASCII.GetBytes("123456");;
MemoryStream stream1 = new MemoryStream(buffer1);
NoSeekMemoryStream stream2 = new NoSeekMemoryStream(buffer2);
ConcatStream streamToTest = new ConcatStream(stream1, stream2);
// Act
int numberOfBytesRead = streamToTest.Read(buffer, 0, expectedBuffer.Length);
//Assert
Assert.IsFalse(streamToTest.CanSeek);
Assert.AreEqual(expectedBuffer.Length, numberOfBytesRead);
for (int i = 0; i < expectedBuffer.Length; i++)
{
Assert.AreEqual(expectedBuffer[i], buffer[i]);
}
}