public virtual void TestDoubleSetToEnd()
{
InsertDefaultEntryByIndex(0);
ITimeSeriesEntryCursor cursor = CreateCursor();
cursor.SetToEnd();
Assert.IsNull(cursor.Current);
Assert.IsTrue(cursor.MovePrevious());
ITimeSeriesEntry entry = cursor.Current;
cursor.SetToEnd();
Assert.IsTrue(cursor.MovePrevious());
Assert.IsTrue(TimeSeriesComparisons.CompareTimeSeriesEntry(entry, cursor.Current));
}
public void TestSetToEndAtMaxValue()
{
InsertDefaultEntryByTimeStamp(MaximumTimeStamp);
ITimeSeriesEntryCursor cursor = CreateCursor();
cursor.SetToEnd();
Assert.IsNull(cursor.Current);
Assert.IsTrue(cursor.MovePrevious());
CheckEntry(cursor.Current);
}
public virtual void TestWalkingMilesAfterEnd()
{
ITimeSeriesEntryCursor cursor = CreateCursor();
InsertAllDefaultEntries();
cursor.SetToEnd();
Assert.IsNull(cursor.Current);
// you cannot reach a valid entry behind the end
for (int i = 1; i < 20; ++i)
{
Assert.IsFalse(cursor.MoveNext());
}
// one step must be enough to get to the last entry
Assert.IsTrue(cursor.MovePrevious());
Assert.IsNotNull(cursor.Current);
}
public virtual void TestCurrentBeforeStartOrBehindEnd()
{
ITimeSeriesEntryCursor cursor = CreateCursor();
InsertAllDefaultEntries();
cursor.SetToStart();
Assert.IsNull(cursor.Current);
ITimeSeriesEntry timeSeriesEntry = cursor.Current;
Assert.IsNull(timeSeriesEntry);
cursor.SetToEnd();
Assert.IsNull(cursor.Current);
timeSeriesEntry = cursor.Current;
Assert.IsNull(timeSeriesEntry);
}
public virtual void TestSeekTimeStampBehindEnd()
{
ITimeSeriesEntryCursor cursor = CreateCursor();
InsertAllDefaultEntries();
cursor.SetToEnd();
Assert.IsNull(cursor.Current);
Assert.IsTrue(cursor.MovePrevious());
Assert.IsNotNull(cursor.Current);
// remember the entry and get its timestamp
ITimeSeriesEntry timeSeriesEntry = cursor.Current;
DateTime timeStamp = timeSeriesEntry.TimeStamp;
// try to seek behind the end; will result in pointing to the last entry (see documentation of Seek(TimeStamp))
Assert.IsTrue(cursor.Seek(timeStamp + new TimeSpan(100)));
Assert.IsNotNull(cursor.Current);
// check that we are indeed at the last entry
Assert.IsTrue(TimeSeriesComparisons.CompareTimeSeriesEntry(timeSeriesEntry, cursor.Current));
}