diff options
Diffstat (limited to 'test/unit/testCellBuffer.cxx')
| -rw-r--r-- | test/unit/testCellBuffer.cxx | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/test/unit/testCellBuffer.cxx b/test/unit/testCellBuffer.cxx index a6bd5dba1..acd21d32e 100644 --- a/test/unit/testCellBuffer.cxx +++ b/test/unit/testCellBuffer.cxx @@ -397,6 +397,32 @@ TEST_CASE("UndoHistory") { REQUIRE(!uh.IsSavePoint()); } + SECTION("EnsureTruncationAfterUndo") { + + REQUIRE(uh.Actions() == 0); + bool startSequence = false; + uh.AppendAction(ActionType::insert, 0, "ab", 2, startSequence, true); + REQUIRE(uh.Actions() == 1); + uh.AppendAction(ActionType::insert, 2, "cd", 2, startSequence, true); + REQUIRE(uh.Actions() == 2); + REQUIRE(uh.CanUndo()); + REQUIRE(!uh.CanRedo()); + + // Undoing + const int steps = uh.StartUndo(); + REQUIRE(steps == 2); + uh.GetUndoStep(); + uh.CompletedUndoStep(); + REQUIRE(uh.Actions() == 2); // Not truncated until forward action + uh.GetUndoStep(); + uh.CompletedUndoStep(); + REQUIRE(uh.Actions() == 2); + + // Perform action which should truncate history + uh.AppendAction(ActionType::insert, 0, "12", 2, startSequence, true); + REQUIRE(uh.Actions() == 1); + } + SECTION("Coalesce") { bool startSequence = false; |