public virtual void TestCurrentForIEnumerator()
{
ITimeSeriesEntryCursor cursor = CreateCursor();
InsertAllDefaultEntries();
// get an IEnumerator over a time series
IEnumerator enumerator = cursor;
// check that it can move and retrieve an entry
Assert.IsTrue(enumerator.MoveNext());
ITimeSeriesEntry timeSeriesEntry1 = (ITimeSeriesEntry)enumerator.Current;
Assert.IsNotNull(timeSeriesEntry1);
// check that the IEnumerator is a correct Cursor
ITimeSeriesEntryCursor timeSeriesEntryCursor = enumerator as ITimeSeriesEntryCursor;
Assert.IsNotNull(timeSeriesEntryCursor);
Assert.IsNotNull(timeSeriesEntryCursor.Current);
// check that the corresponding cursor gets the same entry
ITimeSeriesEntry timeSeriesEntry2 = timeSeriesEntryCursor.Current;
Assert.IsTrue(TimeSeriesComparisons.CompareTimeSeriesEntry(timeSeriesEntry1, timeSeriesEntry2));
// and that it is the same entry as retrieving it from a native cursor
cursor.SetToStart();
cursor.MoveNext();
ITimeSeriesEntry timeSeriesEntry3 = cursor.Current;
Assert.IsTrue(TimeSeriesComparisons.CompareTimeSeriesEntry(timeSeriesEntry2, timeSeriesEntry3));
}
public virtual void TestDoubleReset()
{
InsertDefaultEntryByIndex(0);
IEnumerator <ITimeSeriesEntry> enumerator = CreateCursor();
enumerator.Reset();
Assert.IsTrue(enumerator.MoveNext());
ITimeSeriesEntry entry = enumerator.Current;
enumerator.Reset();
Assert.IsTrue(enumerator.MoveNext());
Assert.IsTrue(TimeSeriesComparisons.CompareTimeSeriesEntry(entry, enumerator.Current));
}
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 virtual void TestSetToStart()
{
InsertDefaultEntryByIndex(0);
ITimeSeriesEntryCursor cursor = CreateCursor();
cursor.Reset();
Assert.IsNull(cursor.Current);
Assert.IsTrue(cursor.MoveNext());
ITimeSeriesEntry entry = cursor.Current;
cursor.SetToStart();
Assert.IsTrue(cursor.MoveNext());
Assert.IsTrue(TimeSeriesComparisons.CompareTimeSeriesEntry(entry, cursor.Current));
}
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));
}
