public void TestConstructor(int length, int maxLength, bool @readonly)
{
var bsp = new ByteStreamProvider("Test", CreateData(length), maxLength, @readonly);
Assert.That(bsp.UnderlyingStreamIsReadonly, Is.EqualTo(@readonly));
Assert.That(bsp.Length, Is.EqualTo(length));
Assert.That(bsp.MaxLength, Is.EqualTo(maxLength));
using (var ms = (MemoryStream)bsp.OpenRead())
{
var data = ms.ToArray();
Assert.That(data, Is.Not.Null);
Assert.That(data.Length, Is.EqualTo(length));
for (var i = 0; i < length; i++)
{
Assert.That(data[i], Is.EqualTo(bsp.Buffer[i]));
}
}
try
{
using (var ms = (MemoryStream)bsp.OpenWrite(false))
{
var sw = new BinaryWriter(ms);
sw.BaseStream.Position = 50;
for (var i = 0; i < 10; i++)
{
sw.Write((byte)i);
}
sw.Flush();
Assert.That(ms.Length, Is.EqualTo(length + 10));
Assert.That(bsp.Length, Is.EqualTo(length + 10));
Assert.That(bsp.Buffer[59], Is.EqualTo(9));
}
}
catch (Exception ex)
{
if (ex is AssertionException)
{
throw;
}
if (!@readonly)
{
Assert.That(ex, Is.TypeOf(typeof(NotSupportedException)));
Assert.That(length, Is.EqualTo(maxLength));
}
}
}
public void TestConstructorText(string constructorText, int codepage)
{
var encoding = codepage == 0 ? Encoding.Default : Encoding.GetEncoding(codepage);
var bsp = new ByteStreamProvider("Test", constructorText, encoding);
Assert.That(bsp.UnderlyingStreamIsReadonly, Is.True);
Assert.That(bsp.Length, Is.EqualTo(constructorText.Length));
Assert.That(bsp.Length == bsp.MaxLength, Is.True);
using (var streamreader = new StreamReader(bsp.OpenRead(), encoding))
{
var streamText = streamreader.ReadToEnd();
Assert.That(streamText, Is.EqualTo(constructorText));
}
}