| public Seek ( long offset, SeekOrigin origin ) : long | ||
| offset | long | /// Offset. /// |
| origin | SeekOrigin | /// Origin. /// |
| return | long | |
public void ResumeTest() {
byte[] inputContent = new byte[100];
long offset = 100;
using (var stream = new MemoryStream(inputContent))
using (var offsetstream = new OffsetStream(stream, offset)) {
using (var progress = new ProgressStream(offsetstream)) {
progress.PropertyChanged += delegate(object sender, System.ComponentModel.PropertyChangedEventArgs e) {
var p = sender as ProgressStream;
if (e.PropertyName == Utils.NameOf(() => p.Position)) {
this.position = (long)p.Position;
this.percent = p.Percent.GetValueOrDefault();
}
};
progress.Seek(0, SeekOrigin.Begin);
Assert.AreEqual(offset, this.position);
Assert.AreEqual(50, this.percent);
progress.Seek(10, SeekOrigin.Current);
Assert.AreEqual(offset + 10, this.position);
progress.Seek(0, SeekOrigin.End);
Assert.AreEqual(100, this.percent);
Assert.AreEqual(offset + inputContent.Length, this.position);
progress.Seek(0, SeekOrigin.Begin);
progress.WriteByte(0);
Assert.AreEqual(offset + 1, this.position);
Assert.AreEqual(50.5, this.percent);
progress.WriteByte(0);
Assert.AreEqual(offset + 2, this.position);
Assert.AreEqual(51, this.percent);
progress.Write(new byte[10], 0, 10);
Assert.AreEqual(56, this.percent);
}
}
}
public void SeekTest() {
using (var stream = new MemoryStream()) {
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;
this.percent = (double)p.Percent;
}
};
progress.SetLength(100);
progress.Seek(10, SeekOrigin.Begin);
Assert.AreEqual(10, this.position);
Assert.AreEqual(10, this.percent);
progress.Seek(10, SeekOrigin.Current);
Assert.AreEqual(20, this.position);
Assert.AreEqual(20, this.percent);
progress.Seek(10, SeekOrigin.Current);
Assert.AreEqual(30, this.position);
Assert.AreEqual(30, this.percent);
progress.Seek(10, SeekOrigin.Current);
Assert.AreEqual(40, this.position);
Assert.AreEqual(40, this.percent);
progress.Seek(5, SeekOrigin.Current);
Assert.AreEqual(45, this.position);
Assert.AreEqual(45, this.percent);
progress.Seek(10, SeekOrigin.Current);
Assert.AreEqual(55, this.position);
Assert.AreEqual(55, this.percent);
progress.SetLength(1000);
progress.Seek(10, SeekOrigin.Current);
Assert.AreEqual(65, this.position);
Assert.AreEqual(6.5, this.percent);
progress.Seek(0, SeekOrigin.End);
Assert.AreEqual(100, this.percent);
Assert.AreEqual(1000, this.position);
}
}
}
