public void TestAddMergedRegion()
{
InternalSheet sheet = InternalSheet.CreateSheet();
int regionsToAdd = 4096;
int startRecords = sheet.Records.Count;
//simple Test that Adds a load of regions
for (int n = 0; n < regionsToAdd; n++)
{
int index = sheet.AddMergedRegion(0, 0, 1, 1);
Assert.AreEqual(index, n, "Merged region index expected to be " + n + " got " + index);
}
//test all the regions were indeed Added
Assert.AreEqual(sheet.NumMergedRegions, regionsToAdd);
//test that the regions were spread out over the appropriate number of records
MergedCellListener mcListener = new MergedCellListener();
sheet.VisitContainedRecords(mcListener, 0);
int recordsAdded = mcListener.Count;
int recordsExpected = regionsToAdd / 1027;
if ((regionsToAdd % 1027) != 0)
{
recordsExpected++;
}
Assert.AreEqual(recordsAdded, recordsExpected, "The " + regionsToAdd + " merged regions should have been spRead out over " + recordsExpected + " records, not " + recordsAdded);
// Check we can't Add one with invalid date
try
{
sheet.AddMergedRegion(10, 10, 9, 12);
Assert.Fail("Expected an exception to occur");
}
catch (ArgumentException e)
{
// occurs during successful Test
Assert.AreEqual("The 'to' row (9) must not be less than the 'from' row (10)", e.Message);
}
try
{
sheet.AddMergedRegion(10, 10, 12, 9);
Assert.Fail("Expected an exception to occur");
}
catch (ArgumentException e)
{
// occurs during successful Test
Assert.AreEqual("The 'to' col (9) must not be less than the 'from' col (10)", e.Message);
}
}
public void TestRemoveMergedRegion()
{
InternalSheet sheet = InternalSheet.CreateSheet();
int regionsToAdd = 4096;
for (int n = 0; n < regionsToAdd; n++)
{
sheet.AddMergedRegion(0, 0, 1, 1);
}
int nSheetRecords = sheet.Records.Count;
//remove a third from the beginning
for (int n = 0; n < regionsToAdd / 3; n++)
{
sheet.RemoveMergedRegion(0);
//assert they have been deleted
Assert.AreEqual(sheet.NumMergedRegions, regionsToAdd - n - 1, "Num of regions should be " + (regionsToAdd - n - 1) + " not " + sheet.NumMergedRegions);
}
// merge records are removed from within the MergedCellsTable,
// so the sheet record count should not change
Assert.AreEqual(nSheetRecords, sheet.Records.Count, "Sheet Records");
}
