private void createStructureWithOffset_0x4() {

		StructureDataType stuct = new StructureDataType("Structure_0x4", 0);
		stuct.add(new DWordDataType());
		stuct.add(new WordDataType());
		builder.addDataType(stuct);
	}
Tests for managing categories through the data manager plugin and tests for
actions being enabled when a node is selected.
Ghidra/Features/Base/src/test.slow/java/ghidra/app/plugin/core/datamgr/DataTypeManagerPluginTest.java