public MFTestResults VerifyValues()
{
MFTestResults result = MFTestResults.Pass;
try
{
Log.Comment("Verify Data");
using (MemoryStream ms = new MemoryStream())
{
Log.Comment("Write 1000 bytes in specific pattern");
MemoryStreamHelper.Write(ms, 1000);
byte[] stream = ms.ToArray();
if (!VerifyArray(stream, 1000))
{
result = MFTestResults.Fail;
}
}
}
catch (Exception ex)
{
Log.Exception("Unexpected exception", ex);
result = MFTestResults.Fail;
}
return(result);
}
public MFTestResults ChangeLengths()
{
MFTestResults result = MFTestResults.Pass;
try
{
Log.Comment("Verify array is still valid after truncation (copy array)");
using (MemoryStream ms = new MemoryStream())
{
MemoryStreamHelper.Write(ms, 1000);
ms.SetLength(200);
ms.Flush();
byte[] stream = ms.ToArray();
if (!VerifyArray(stream, 200))
{
result = MFTestResults.Fail;
}
}
}
catch (Exception ex)
{
Log.Exception("Unexpected exception", ex);
result = MFTestResults.Fail;
}
return(result);
}
public MFTestResults BoundaryCheck()
{
MFTestResults result = MFTestResults.Pass;
try
{
for (int i = 250; i < 260; i++)
{
using (MemoryStream ms = new MemoryStream())
{
MemoryStreamHelper.Write(ms, i);
ms.Position = 0;
if (!MemoryStreamHelper.VerifyRead(ms))
{
result = MFTestResults.Fail;
}
Log.Comment("Position: " + ms.Position);
Log.Comment("Length: " + ms.Length);
if (i != ms.Position | i != ms.Length)
{
result = MFTestResults.Fail;
Log.Exception("Expected Position and Length to be " + i);
}
}
}
}
catch (Exception ex)
{
Log.Exception("Unexpected exception: " + ex.Message);
result = MFTestResults.Fail;
}
return(result);
}
public MFTestResults InvalidCases()
{
MFTestResults result = MFTestResults.Pass;
try
{
MemoryStream ms2 = new MemoryStream();
MemoryStreamHelper.Write(ms2, 100);
ms2.Seek(0, SeekOrigin.Begin);
ms2.Close();
Log.Comment("Read from closed stream");
try
{
int readBytes = ms2.ReadByte();
result = MFTestResults.Fail;
Log.Exception("Expected ObjectDisposedException, but read " + readBytes + " bytes");
}
catch (ObjectDisposedException) { /* pass case */ }
}
catch (Exception ex)
{
Log.Exception("Unexpected exception", ex);
result = MFTestResults.Fail;
}
return(result);
}
public MFTestResults WriteTo_FileStream()
{
// Don't run test if no FileSystem
if (!_fileSystemInit)
{
return(MFTestResults.Skip);
}
MFTestResults result = MFTestResults.Pass;
string fileName = "WriteTo_FileStream.txt";
try
{
using (MemoryStream ms = new MemoryStream())
{
Log.Comment("Initialize stream with 1234 bytes");
MemoryStreamHelper.Write(ms, 1234);
using (FileStream fs = new FileStream(fileName, FileMode.Create))
{
Log.Comment("WriteTo FileStream");
ms.WriteTo(fs);
}
Log.Comment("Verify closed file");
using (FileStream fs = new FileStream(fileName, FileMode.Open))
{
if (fs.Length != 1234)
{
result = MFTestResults.Fail;
Log.Exception("Expected 1234 bytes, but got " + fs.Length);
}
if (!MemoryStreamHelper.VerifyRead(fs))
{
result = MFTestResults.Fail;
}
}
}
}
catch (Exception ex)
{
Log.Exception("Unexpected exception", ex);
result = MFTestResults.Fail;
}
return(result);
}
public MFTestResults WriteTo_MemoryStream()
{
MFTestResults result = MFTestResults.Pass;
try
{
using (MemoryStream ms = new MemoryStream())
{
Log.Comment("Initialize stream with 1234 bytes");
MemoryStreamHelper.Write(ms, 1234);
using (MemoryStream ms2 = new MemoryStream())
{
Log.Comment("WriteTo MemoryStream");
ms.WriteTo(ms2);
Log.Comment("Verify 2nd MemoryStream");
if (ms2.Length != 1234)
{
result = MFTestResults.Fail;
Log.Exception("Expected 1234 bytes, but got " + ms2.Length);
}
ms2.Position = 0;
if (!MemoryStreamHelper.VerifyRead(ms2))
{
result = MFTestResults.Fail;
}
}
}
}
catch (Exception ex)
{
Log.Exception("Unexpected exception", ex);
result = MFTestResults.Fail;
}
return(result);
}
public MFTestResults VanillaCases()
{
MFTestResults result = MFTestResults.Pass;
try
{
using (MemoryStream ms = new MemoryStream())
{
MemoryStreamHelper.Write(ms, 256);
ms.Position = 0;
Log.Comment("ReadBytes and verify");
for (int i = 0; i < 256; i++)
{
int b = ms.ReadByte();
if (b != i)
{
result = MFTestResults.Fail;
Log.Exception("Expected " + i + " but got " + b);
}
}
Log.Comment("Bytes past EOS should return -1");
int rb = ms.ReadByte();
if (rb != -1)
{
result = MFTestResults.Fail;
Log.Exception("Expected -1 but got " + rb);
}
}
}
catch (Exception ex)
{
Log.Exception("Unexpected exception", ex);
result = MFTestResults.Fail;
}
return(result);
}
public MFTestResults InvalidCases()
{
MFTestResults result = MFTestResults.Pass;
try
{
using (MemoryStream ms = new MemoryStream())
{
Log.Comment("null Buffer");
try
{
int read = ms.Read(null, 0, 0);
result = MFTestResults.Fail;
Log.Exception("Expected ArgumentNullException, but read " + read + " bytes");
}
catch (ArgumentNullException) { /* pass case */ }
Log.Comment("negative offset");
try
{
int read = ms.Read(new byte[] { 1 }, -1, 0);
result = MFTestResults.Fail;
Log.Exception("Expected ArgumentOutOfRangeException, but read " + read + " bytes");
}
catch (ArgumentOutOfRangeException) { /* pass case */ }
Log.Comment("negative count");
try
{
int read = ms.Read(new byte[] { 1 }, 0, -1);
result = MFTestResults.Fail;
Log.Exception("Expected ArgumentOutOfRangeException, but read " + read + " bytes");
}
catch (ArgumentOutOfRangeException) { /* pass case */ }
Log.Comment("offset exceeds buffer size");
try
{
int read = ms.Read(new byte[] { 1 }, 2, 0);
result = MFTestResults.Fail;
Log.Exception("Expected ArgumentException, but read " + read + " bytes");
}
catch (ArgumentException) { /* pass case */ }
Log.Comment("count exceeds buffer size");
try
{
int read = ms.Read(new byte[] { 1 }, 0, 2);
result = MFTestResults.Fail;
Log.Exception("Expected ArgumentException, but read " + read + " bytes");
}
catch (ArgumentException) { /* pass case */ }
}
MemoryStream ms2 = new MemoryStream();
MemoryStreamHelper.Write(ms2, 100);
ms2.Seek(0, SeekOrigin.Begin);
ms2.Close();
Log.Comment("Read from closed stream");
try
{
int readBytes = ms2.Read(new byte[] { 50 }, 0, 50);
result = MFTestResults.Fail;
Log.Exception("Expected ObjectDisposedException, but read " + readBytes + " bytes");
}
catch (ObjectDisposedException) { /* pass case */ }
}
catch (Exception ex)
{
Log.Exception("Unexpected exception", ex);
result = MFTestResults.Fail;
}
return(result);
}
public MFTestResults VanillaRead()
{
MFTestResults result = MFTestResults.Pass;
try
{
using (MemoryStream ms = new MemoryStream())
{
// Write to stream then reset to beginning
MemoryStreamHelper.Write(ms, 1000);
ms.Seek(0, SeekOrigin.Begin);
Log.Comment("Read 256 bytes of data");
if (!TestRead(ms, 256))
{
result = MFTestResults.Fail;
}
Log.Comment("Request less bytes then buffer");
if (!TestRead(ms, 256, 100, 100))
{
result = MFTestResults.Fail;
}
// 1000 - 256 - 100 = 644
Log.Comment("Request more bytes then file");
if (!TestRead(ms, 1000, 1000, 644))
{
result = MFTestResults.Fail;
}
Log.Comment("Request bytes after EOF");
if (!TestRead(ms, 100, 100, 0))
{
result = MFTestResults.Fail;
}
Log.Comment("Rewind and read entire file in one buffer larger then file");
ms.Seek(0, SeekOrigin.Begin);
if (!TestRead(ms, 1001, 1001, 1000))
{
result = MFTestResults.Fail;
}
Log.Comment("Rewind and read from middle");
ms.Position = 500;
if (!TestRead(ms, 256))
{
result = MFTestResults.Fail;
}
Log.Comment("Read position after EOS");
ms.Position = ms.Length + 10;
if (!TestRead(ms, 100, 100, 0))
{
result = MFTestResults.Fail;
}
Log.Comment("Verify Read validation with UTF8 string");
ms.SetLength(0);
string test = "MFFramework Test";
ms.Write(UTF8Encoding.UTF8.GetBytes(test), 0, test.Length);
ms.Flush();
ms.Seek(0, SeekOrigin.Begin);
byte[] readbuff = new byte[20];
ms.Read(readbuff, 0, readbuff.Length);
string testResult = new string(Encoding.UTF8.GetChars(readbuff));
if (test != testResult)
{
result = MFTestResults.Fail;
Log.Comment("Exepected: " + test + ", but got: " + testResult);
}
}
}
catch (Exception ex)
{
Log.Exception("Unexpected exception", ex);
result = MFTestResults.Fail;
}
return(result);
}
public MFTestResults InvalidArgs()
{
MFTestResults result = MFTestResults.Pass;
try
{
using (MemoryStream ms = new MemoryStream())
{
Log.Comment("Initialize stream");
MemoryStreamHelper.Write(ms, 1000);
try
{
Log.Comment("null stream");
ms.WriteTo(null);
result = MFTestResults.Fail;
Log.Exception("Expected ArgumentNullException");
}
catch (ArgumentNullException) { /* pass case */ }
if (_fileSystemInit)
{
try
{
Log.Comment("pass in read-only stream");
using (FileStream fs = new FileStream("readonly", FileMode.OpenOrCreate, FileAccess.Read))
{
ms.WriteTo(fs);
}
}
catch (NotSupportedException) { /* pass case */ }
}
try
{
Log.Comment("Target Stream closed");
MemoryStream mst = new MemoryStream();
mst.Close();
ms.WriteTo(mst);
result = MFTestResults.Fail;
Log.Exception("Expected ObjectDisposedException");
}
catch (ObjectDisposedException) { /* pass case */ }
try
{
Log.Comment("Current Stream closed");
ms.Close();
using (MemoryStream mst = new MemoryStream())
{
ms.WriteTo(mst);
result = MFTestResults.Fail;
Log.Exception("Expected ObjectDisposedException");
}
}
catch (ObjectDisposedException) { /* pass case */ }
}
}
catch (Exception ex)
{
Log.Exception("Unexpected exception", ex);
result = MFTestResults.Fail;
}
return(result);
}
public MFTestResults InvalidCases()
{
MemoryStream fs = new MemoryStream();
MemoryStreamHelper.Write(fs, 1000);
long seek;
MFTestResults result = MFTestResults.Pass;
try
{
try
{
Log.Comment("Seek -1 from Begin");
seek = fs.Seek(-1, SeekOrigin.Begin);
result = MFTestResults.Fail;
Log.Exception("Expected IOException, but got position " + seek);
}
catch (IOException) { /* pass case */ }
try
{
Log.Comment("Seek -1001 from Current - at end from write");
seek = fs.Seek(-1001, SeekOrigin.Current);
result = MFTestResults.Fail;
Log.Exception("Expected IOException, but got position " + seek);
}
catch (IOException) { /* pass case */ }
try
{
Log.Comment("Seek -1001 from End");
seek = fs.Seek(-1001, SeekOrigin.End);
result = MFTestResults.Fail;
Log.Exception("Expected IOException, but got position " + seek);
}
catch (IOException) { /* pass case */ }
try
{
Log.Comment("Seek invalid -1 origin");
seek = fs.Seek(1, (SeekOrigin)(-1));
result = MFTestResults.Fail;
Log.Exception("Expected ArgumentException, but got position " + seek);
}
catch (ArgumentException) { /* pass case */ }
try
{
Log.Comment("Seek invalid 10 origin");
seek = fs.Seek(1, (SeekOrigin)10);
result = MFTestResults.Fail;
Log.Exception("Expected ArgumentException, but got position " + seek);
}
catch (ArgumentException) { /* pass case */ }
try
{
Log.Comment("Seek with closed stream");
fs.Close();
seek = fs.Seek(0, SeekOrigin.Begin);
result = MFTestResults.Fail;
Log.Exception("Expected ObjectDisposedException, but got position " + seek);
}
catch (ObjectDisposedException) { /* pass case */ }
try
{
Log.Comment("Seek with disposed stream");
fs.Dispose();
seek = fs.Seek(0, SeekOrigin.End);
result = MFTestResults.Fail;
Log.Exception("Expected ObjectDisposedException, but got position " + seek);
}
catch (ObjectDisposedException) { /* pass case */ }
}
catch (Exception ex)
{
Log.Exception("Unexpected exception: " + ex.Message);
result = MFTestResults.Fail;
}
finally
{
if (fs != null)
{
fs.Dispose();
}
}
return(result);
}
public MFTestResults ValidCases()
{
MFTestResults result = MFTestResults.Pass;
try
{
using (MemoryStream fs = new MemoryStream())
{
MemoryStreamHelper.Write(fs, 1000);
Log.Comment("Seek to beginning");
if (!TestSeek(fs, 0, SeekOrigin.Begin, 0))
{
result = MFTestResults.Fail;
}
Log.Comment("Seek forward offset from begging");
if (!TestSeek(fs, 10, SeekOrigin.Begin, 0))
{
result = MFTestResults.Fail;
}
Log.Comment("Seek backwards offset from current");
if (!TestSeek(fs, -5, SeekOrigin.Current, 5))
{
result = MFTestResults.Fail;
}
Log.Comment("Seek forwards offset from current");
if (!TestSeek(fs, 20, SeekOrigin.Current, 25))
{
result = MFTestResults.Fail;
}
Log.Comment("Seek to end");
if (!TestSeek(fs, 0, SeekOrigin.End, 1000))
{
result = MFTestResults.Fail;
}
Log.Comment("Seek backwards offset from end");
if (!TestSeek(fs, -35, SeekOrigin.End, 965))
{
result = MFTestResults.Fail;
}
Log.Comment("Seek past end relative to End");
if (!TestExtend(fs, 1, SeekOrigin.End, 1001, 1002))
{
result = MFTestResults.Fail;
}
Log.Comment("Seek past end relative to Begin");
if (!TestExtend(fs, 1002, SeekOrigin.Begin, 1002, 1003))
{
result = MFTestResults.Fail;
}
Log.Comment("Seek past end relative to Current");
if (!TestSeek(fs, 995, SeekOrigin.Begin, 995))
{
result = MFTestResults.Fail;
}
if (!TestExtend(fs, 10, SeekOrigin.Current, 1005, 1006))
{
result = MFTestResults.Fail;
}
// 1000 --123456
// verify 011001
Log.Comment("Verify proper bytes written at end (zero'd bytes from seek beyond end)");
byte[] buff = new byte[6];
byte[] verify = new byte[] { 0, 1, 1, 0, 0, 1 };
fs.Seek(-6, SeekOrigin.End);
fs.Read(buff, 0, buff.Length);
for (int i = 0; i < buff.Length; i++)
{
if (buff[i] != verify[i])
{
result = MFTestResults.Fail;
Log.Comment("Position " + i + ":" + buff[i] + " != " + verify[i]);
}
}
}
}
catch (Exception ex)
{
Log.Exception("Unexpected exception: " + ex.Message);
result = MFTestResults.Fail;
}
return(result);
}