public void AfterDispose_UnusableMethodsThrow()
{
var subject = new SmallBlockMemoryStream();
subject.Dispose();
long dummy;
var buffer = new byte[1];
var dummyTarget = new MemoryStream();
var actions = new Action[]
{
() => dummy = subject.Length,
() => subject.SetLength(0),
() => dummy = subject.Capacity,
() => subject.Capacity = 100,
() => dummy = subject.Position,
() => subject.Position = 0,
() => subject.Seek(0, SeekOrigin.Begin),
() => subject.Write(buffer, 0, 1),
() => subject.WriteByte(1),
() => CallWriteTo(subject, dummyTarget),
() => subject.Read(buffer, 0, 1),
() => subject.ReadByte()
};
foreach (var action in actions)
{
action.ShouldThrow <ObjectDisposedException>();
}
}
public void Read_withBadParameters_fails()
{
var subject = new SmallBlockMemoryStream();
var data = new byte[10];
Action action = () => subject.Read(null, 0, 0);
action.ShouldThrow <ArgumentException>();
action = () => subject.Read(data, -10, 0);
action.ShouldThrow <ArgumentException>();
action = () => subject.Read(data, 0, -10);
action.ShouldThrow <ArgumentException>();
action = () => subject.Read(data, 0, 20);
action.ShouldThrow <ArgumentException>();
}
public void ReadPastEnd_succeedsWithCorrectReadLength()
{
const int dataLength = 100;
const int readLength = 110;
var writeData = MakeTestData(dataLength);
var subject = new SmallBlockMemoryStream();
subject.Write(writeData, 0, dataLength);
subject.Position = 0;
var readData = new byte[readLength];
var read = subject.Read(readData, 0, readLength);
Assert.AreEqual(writeData.Length, read);
}
