public void testMergeWithEquivalentAddPresent() throws Exception {
delta.addChange(Add.create(ssc, 2));
remove.setChild(ssc);
remove.mergeInto(delta, NOW);
assertEquals("Remove should have canceled add", 0, delta.getChanges().size());
}
public void testMergeWithReorderAloneDoesNotCancelReorder() throws Exception {
delta.addChange(Reorder.create(ssa, 0, 1));
remove.setChild(ssa);
remove.mergeInto(delta, NOW);
assertEquals("Remove should not have canceled anything", 2, delta.getChanges().size());
}
public void testMergeWithAddFollowedByReorderCancelsBoth() throws Exception {
delta.addChange(Add.create(ssc, 2));
Reorder.create(ssc, 2, 1).mergeInto(delta, NOW);
remove.setChild(ssc);
remove.mergeInto(delta, NOW);
assertEquals("Remove should have canceled add and reorder", 0, delta.getChanges().size());
}
public void testMergeWithEquivalentRemovePresent() throws Exception {
Remove expectedRemove = Remove.create(ssb);
delta.addChange(expectedRemove);
remove.setChild(ssb);
remove.mergeInto(delta, NOW);
assertEquals("Duplicate remove should not have been added", 1, delta.getChanges().size());
assertEquals(expectedRemove, delta.getChanges().get(0));
}
public void testMergeTwoIntoDeltaWithIndexesThenRemoveOne() throws Exception {
StudySegment retained0 = setId(17, new StudySegment());
StudySegment retained1 = setId(18, new StudySegment());
StudySegment retained2 = setId(19, new StudySegment());
delta.addChange(Add.create(retained0, 2));
delta.addChange(Add.create(ssc, 3));
delta.addChange(Add.create(retained1, 4));
delta.addChange(Add.create(retained2, 5));
remove.setChild(ssc);
remove.mergeInto(delta, NOW);
assertEquals("Wrong number of changes in delta", 3, delta.getChanges().size());
Add add0 = (Add) delta.getChanges().get(0);
Add add1 = (Add) delta.getChanges().get(1);
Add add2 = (Add) delta.getChanges().get(2);
assertAdd("Index for earlier retained add updated", retained0, 2, add0);
assertChangeTime("Unchanged add time incorrectly updated", null, add0);
assertAdd("Index for later retained add not updated", retained1, 3, add1);
assertChangeTime("Updated add time not updated", NOW, add1);
assertAdd("Index for later retained add not updated", retained2, 4, add2);
assertChangeTime("Updated add time not updated", NOW, add2);
}