@Test
	public void testDnDCopyFolder2FolderInvalid() throws Exception {

		//First copy folder into another folder
		copyFolderOrFragment("Subroutines", "Everything");

		// drag/copy a folder onto another folder that already contains
		// the folder.
		// 	Verify that there is no valid drop target.
		ProgramNode subrNode = root.getChild("Subroutines");
		ProgramNode evNode = root.getChild("Everything");
		assertDropSiteInvalid(evNode, subrNode);
	}
Tests for drag/drop/reorder for copy and move in the program tree.
Ghidra/Features/Base/src/test.slow/java/ghidra/app/plugin/core/programtree/ProgramTreePlugin3Test.java