| public Read ( byte buffer, int offset, int count ) : int | ||
| buffer | byte | /// Buffer. /// |
| offset | int | /// Offset. /// |
| count | int | /// Count. /// |
| Результат | int | |
public void UpdateLengthIfInputStreamGrowsAfterStartReading() {
using (var stream = new MemoryStream()) {
long initialLength = 100;
long length = initialLength;
byte[] buffer = new byte[initialLength];
stream.Write(buffer, 0, buffer.Length);
using (var progress = new ProgressStream(stream)) {
progress.PropertyChanged += delegate(object sender, System.ComponentModel.PropertyChangedEventArgs e) {
var t = sender as ProgressStream;
if (e.PropertyName == Utils.NameOf(() => t.Position)) {
Assert.That(t.Position, Is.LessThanOrEqualTo(length));
Assert.That(t.Length, Is.LessThanOrEqualTo(length));
}
};
progress.Read(buffer, 0, buffer.Length / 2);
stream.Write(buffer, 0, buffer.Length);
length = length + buffer.Length;
progress.Read(buffer, 0, buffer.Length / 2);
progress.Read(buffer, 0, buffer.Length / 2);
progress.Read(buffer, 0, buffer.Length / 2);
stream.Write(buffer, 0, buffer.Length);
length = length + buffer.Length;
progress.Read(buffer, 0, buffer.Length);
}
}
}
public void Read() {
using (var stream = new MemoryStream()) {
byte[] buffer = new byte[10];
using (var progress = new ProgressStream(stream)) {
progress.PropertyChanged += delegate(object sender, System.ComponentModel.PropertyChangedEventArgs e) {
var p = sender as ProgressStream;
if (e.PropertyName == Utils.NameOf(() => p.Position)) {
this.positionCalls++;
this.position = (long)p.Position;
}
};
progress.SetLength(buffer.Length * 10);
progress.Read(buffer, 0, buffer.Length);
Assert.AreEqual(buffer.Length, this.position);
Assert.AreEqual(10, progress.Percent);
progress.Read(buffer, 0, buffer.Length);
Assert.AreEqual(buffer.Length * 2, this.position);
Assert.AreEqual(20, progress.Percent);
progress.Read(buffer, 0, buffer.Length);
Assert.AreEqual(buffer.Length * 3, this.position);
Assert.AreEqual(30, progress.Percent);
progress.Read(buffer, 0, buffer.Length);
Assert.AreEqual(buffer.Length * 4, this.position);
Assert.AreEqual(40, progress.Percent);
progress.Read(buffer, 0, buffer.Length / 2);
Assert.AreEqual((buffer.Length * 4) + (buffer.Length / 2), this.position);
Assert.AreEqual(45, progress.Percent);
progress.Read(buffer, 0, buffer.Length);
Assert.AreEqual((buffer.Length * 5) + (buffer.Length / 2), this.position);
Assert.AreEqual(55, progress.Percent);
progress.SetLength(buffer.Length * 100);
progress.Read(buffer, 0, buffer.Length);
Assert.AreEqual((buffer.Length * 6) + (buffer.Length / 2), this.position);
Assert.AreEqual(6.5, progress.Percent);
}
}
}