public virtual void TestDoubleSetToStart()
{
InsertDefaultEntryByIndex(0);
ITimeSeriesEntryCursor cursor = CreateCursor();
cursor.SetToStart();
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 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 void TestSetToStartAtMinValue()
{
InsertDefaultEntryByTimeStamp(MinimumTimeStamp);
ITimeSeriesEntryCursor cursor = CreateCursor();
cursor.SetToStart();
Assert.IsNull(cursor.Current);
Assert.IsTrue(cursor.MoveNext());
CheckEntry(cursor.Current);
}
public virtual void TestWalkingMilesBeforeBegin()
{
ITimeSeriesEntryCursor cursor = CreateCursor();
InsertDefaultEntryByIndex(0);
cursor.SetToStart();
Assert.IsNull(cursor.Current);
// you cannot reach a valid entry before the beginning
for (int i = 1; i < 20; ++i)
{
Assert.IsFalse(cursor.MovePrevious());
}
// one step must be enough to get to the first entry
Assert.IsTrue(cursor.MoveNext());
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);
}
