Add remove space test

tests/spacertest.cpp

@@ -190,6 +190,37 @@ TEST_CASE("Remove all spaces", "[Spacer]")
         REQUIRE(TimelineFunctions::requestDeleteBlankAt(timeline, tid1, 100, false) == false);
         undoStack->undo();
     }
+    SECTION("Ensure delete blank works correctly with ungrouped clips")
+    {
+        // We have clips at 10, 80, 101 on track 1 (length 20 frames each)
+        // One clip at 20 on track 2
+        REQUIRE(TimelineFunctions::requestDeleteBlankAt(timeline, tid1, 5, false));
+        REQUIRE(timeline->getTrackClipsCount(tid1) == 3);
+        REQUIRE(timeline->getTrackClipsCount(tid2) == 1);
+        REQUIRE(timeline->getClipPosition(cid1) == 0);
+        REQUIRE(timeline->getClipPosition(cid2) == 70);
+        REQUIRE(timeline->getClipPosition(cid3) == 91);
+        REQUIRE(timeline->getClipPosition(cid4) == 20);
+        undoStack->undo();
+        REQUIRE(TimelineFunctions::requestDeleteBlankAt(timeline, tid1, 5, true));
+        REQUIRE(timeline->getTrackClipsCount(tid1) == 3);
+        REQUIRE(timeline->getTrackClipsCount(tid2) == 1);
+        REQUIRE(timeline->getClipPosition(cid1) == 0);
+        REQUIRE(timeline->getClipPosition(cid2) == 70);
+        REQUIRE(timeline->getClipPosition(cid3) == 91);
+        REQUIRE(timeline->getClipPosition(cid4) == 10);
+        undoStack->undo();
+        REQUIRE(TimelineFunctions::requestDeleteBlankAt(timeline, tid1, 60, false));
+        REQUIRE(timeline->getTrackClipsCount(tid1) == 3);
+        REQUIRE(timeline->getTrackClipsCount(tid2) == 1);
+        REQUIRE(timeline->getClipPosition(cid1) == 10);
+        REQUIRE(timeline->getClipPosition(cid2) == 30);
+        REQUIRE(timeline->getClipPosition(cid3) == 51);
+        REQUIRE(timeline->getClipPosition(cid4) == 20);
+        undoStack->undo();
+        state1();
+        undoStack->undo();
+    }
     binModel->clean();
     pCore->m_projectManager = nullptr;
 }