@Override
			public void modifyPrivate(ProgramDB program) {
				DataTypeManager dtm = program.getDataTypeManager();
				// move MISC to /Category1/Category2/Category3
				Category miscCat = dtm.getCategory(new CategoryPath("/MISC"));
				Structure s1 = new StructureDataType(miscCat.getCategoryPath(), "struct_one", 0);
				s1.add(new ByteDataType());
				s1.add(new FloatDataType());
				try {
					miscCat.addDataType(s1, DataTypeConflictHandler.DEFAULT_HANDLER);
				}
				catch (Exception e) {
					Assert.fail("Got exception: " + e);
				}
			}
Tests for the merge data type manager.
Ghidra/Features/Base/src/test.slow/java/ghidra/app/merge/datatypes/CategoryMerge1Test.java