public void WriteByte() { const int length = 1000; using (var manager = new UmsManager(FileAccess.Write, length)) { UnmanagedMemoryStream stream = manager.Stream; UmsTests.WriteUmsInvariants(stream); var bytes = ArrayHelpers.CreateByteArray(length); for (int index = 0; index < bytes.Length; index++) { stream.WriteByte(bytes[index]); } var memory = manager.ToArray(); Assert.Equal(bytes, memory, ArrayHelpers.Comparer <byte>()); stream.SetLength(0); stream.Position = 1; bytes = ArrayHelpers.CreateByteArray(length); for (int index = 1; index < bytes.Length; index++) { stream.WriteByte(bytes[index]); } stream.Position = 0; stream.WriteByte(bytes[0]); memory = manager.ToArray(); Assert.Equal(bytes, memory, ArrayHelpers.Comparer <byte>()); } }
public void CannotWriteWithOverflow() { using (var manager = new UmsManager(FileAccess.Write, 1000)) { UnmanagedMemoryStream stream = manager.Stream; UmsTests.WriteUmsInvariants(stream); stream.Position = long.MaxValue; var bytes = new byte[3]; Assert.Throws <IOException>(() => Write(stream, bytes, 0, bytes.Length)); Assert.Throws <IOException>(() => stream.WriteByte(1)); } }
public void Write() { const int length = 1000; using (var manager = new UmsManager(FileAccess.Write, length)) { UnmanagedMemoryStream stream = manager.Stream; UmsTests.WriteUmsInvariants(stream); Assert.Equal(stream.Length, length); var bytes = ArrayHelpers.CreateByteArray(length); Write(stream, bytes.Copy(), 0, length); var memory = manager.ToArray(); Assert.Equal(bytes, memory, ArrayHelpers.Comparer <byte>()); Write(stream, new byte[0], 0, 0); stream.SetLength(1); Assert.Equal(1, stream.Length); stream.SetLength(4); Assert.Equal(4, stream.Length); stream.SetLength(0); Assert.Equal(0, stream.Length); stream.Position = 1; bytes = ArrayHelpers.CreateByteArray(length - 1); Write(stream, bytes, 0, length - 1); memory = manager.ToArray(); for (int i = 0; i < bytes.Length; i++) { Assert.Equal(bytes[i], memory[i + 1]); } Assert.True(stream.WriteAsync(bytes, 0, bytes.Length, new CancellationToken(true)).IsCanceled); stream.Position = 0; bytes = ArrayHelpers.CreateByteArray(length); for (int i = 0; i < 4; i++) { Task t = stream.WriteAsync(bytes, i * (bytes.Length / 4), bytes.Length / 4); Assert.True(t.Status == TaskStatus.RanToCompletion); } Assert.Equal(bytes, manager.ToArray(), ArrayHelpers.Comparer <byte>()); } }
public static void Write() { const int length = 1000; using (var manager = new UmsManager(FileAccess.Write, length)) { UnmanagedMemoryStream stream = manager.Stream; UmsTests.WriteUmsInvariants(stream); Assert.Equal(stream.Length, length); var bytes = ArrayHelpers.CreateByteArray(length); stream.Write(bytes.Copy(), 0, length); var memory = manager.ToArray(); Assert.Equal(bytes, memory, ArrayHelpers.Comparer <byte>()); stream.Write(new byte[0], 0, 0); } }
public static void CannotWriteWithOverflow() { using (var manager = new UmsManager(FileAccess.Write, 1000)) { UnmanagedMemoryStream stream = manager.Stream; UmsTests.WriteUmsInvariants(stream); if (IntPtr.Size == 4) { Assert.Throws <ArgumentOutOfRangeException>(() => stream.Position = long.MaxValue); stream.Position = int.MaxValue; } else { stream.Position = long.MaxValue; var bytes = new byte[3]; Assert.Throws <IOException>(() => stream.Write(bytes, 0, bytes.Length)); Assert.Throws <IOException>(() => stream.WriteByte(1)); } } }
public static void WriteByte() { var length = 1000; using (var manager = new UmsManager(FileAccess.Write, length)) { UnmanagedMemoryStream stream = manager.Stream; UmsTests.WriteUmsInvariants(stream); var bytes = ArrayHelpers.CreateByteArray(length); for (int index = 0; index < bytes.Length; index++) { stream.WriteByte(bytes[index]); } var memory = manager.ToArray(); Assert.True(ArrayHelpers.Comparer <byte>().Equals(bytes, memory)); } }
public static async Task CopyToAsyncTest() { byte[] testData = ArrayHelpers.CreateByteArray(8192); using (var manager = new UmsManager(FileAccess.Read, testData)) { UnmanagedMemoryStream ums = manager.Stream; UmsTests.ReadUmsInvariants(ums); MemoryStream destination = new MemoryStream(); destination.Position = 0; await ums.CopyToAsync(destination); Assert.Equal(testData, destination.ToArray()); destination.Position = 0; await ums.CopyToAsync(destination, 2); Assert.Equal(testData, destination.ToArray()); destination.Position = 0; await ums.CopyToAsync(destination, 0x1000, new CancellationTokenSource().Token); Assert.Equal(testData, destination.ToArray()); await Assert.ThrowsAnyAsync <OperationCanceledException>(() => ums.CopyToAsync(destination, 0x1000, new CancellationToken(true))); } // copy to disposed stream should throw using (var manager = new UmsManager(FileAccess.Read, testData)) { UnmanagedMemoryStream ums = manager.Stream; UmsTests.ReadUmsInvariants(ums); MemoryStream destination = new MemoryStream(); destination.Dispose(); await Assert.ThrowsAsync <ObjectDisposedException>(() => ums.CopyToAsync(destination)); } // copy from disposed stream should throw using (var manager = new UmsManager(FileAccess.Read, testData)) { UnmanagedMemoryStream ums = manager.Stream; UmsTests.ReadUmsInvariants(ums); ums.Dispose(); MemoryStream destination = new MemoryStream(); await Assert.ThrowsAsync <ObjectDisposedException>(() => ums.CopyToAsync(destination)); } // copying to non-writable stream should throw using (var manager = new UmsManager(FileAccess.Read, testData)) { UnmanagedMemoryStream ums = manager.Stream; UmsTests.ReadUmsInvariants(ums); MemoryStream destination = new MemoryStream(new byte[0], false); await Assert.ThrowsAsync <NotSupportedException>(() => ums.CopyToAsync(destination)); } // copying from non-readable stream should throw using (var manager = new UmsManager(FileAccess.Write, testData)) { UnmanagedMemoryStream ums = manager.Stream; UmsTests.WriteUmsInvariants(ums); MemoryStream destination = new MemoryStream(new byte[0], false); await Assert.ThrowsAsync <NotSupportedException>(() => ums.CopyToAsync(destination)); } }
public static void CopyToTest() { byte[] testData = ArrayHelpers.CreateByteArray(8192); using (var manager = new UmsManager(FileAccess.Read, testData)) { UnmanagedMemoryStream ums = manager.Stream; UmsTests.ReadUmsInvariants(ums); MemoryStream destination = new MemoryStream(); destination.Position = 0; ums.CopyTo(destination); Assert.Equal(testData, destination.ToArray()); destination.Position = 0; ums.CopyTo(destination, 1); Assert.Equal(testData, destination.ToArray()); } // copy to disposed stream should throw using (var manager = new UmsManager(FileAccess.Read, testData)) { UnmanagedMemoryStream ums = manager.Stream; UmsTests.ReadUmsInvariants(ums); MemoryStream destination = new MemoryStream(); destination.Dispose(); Assert.Throws <ObjectDisposedException>(() => ums.CopyTo(destination)); } // copy from disposed stream should throw using (var manager = new UmsManager(FileAccess.Read, testData)) { UnmanagedMemoryStream ums = manager.Stream; UmsTests.ReadUmsInvariants(ums); ums.Dispose(); MemoryStream destination = new MemoryStream(); Assert.Throws <ObjectDisposedException>(() => ums.CopyTo(destination)); } // copying to non-writable stream should throw using (var manager = new UmsManager(FileAccess.Read, testData)) { UnmanagedMemoryStream ums = manager.Stream; UmsTests.ReadUmsInvariants(ums); MemoryStream destination = new MemoryStream(new byte[0], false); Assert.Throws <NotSupportedException>(() => ums.CopyTo(destination)); } // copying from non-readable stream should throw using (var manager = new UmsManager(FileAccess.Write, testData)) { UnmanagedMemoryStream ums = manager.Stream; UmsTests.WriteUmsInvariants(ums); MemoryStream destination = new MemoryStream(new byte[0], false); Assert.Throws <NotSupportedException>(() => ums.CopyTo(destination)); } }