@Test
	public void testEditFunctionDefintionName() throws Exception {
		createFunctionDefinition("Bob", "Joe"); // creates function definition for "undefined Bob(byte Joe)" 
		FunctionDefinition fun = getFunctionDefinition("Bob");
		assertParamName(fun, 0, "Joe");
		editSignature("Bob", "undefined Tom(byte Joe)");
		DataType dt = program.getDataTypeManager().getDataType("/Bob");
		assertNull(dt);
		fun = getFunctionDefinition("Tom");
		assertNotNull(fun);
	}
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