@Test
	public void testFilter_DefaultFilter() {

		DtFilterState filterState = provider.getFilterState();
		assertFalse(filterState.getArraysFilter().isTypeActive());
		assertFalse(filterState.getPointersFilter().isTypeActive());

		DataTypeManager[] dtms = plugin.getDataTypeManagers();
		for (DataTypeManager dtm : dtms) {
			if (dtm instanceof BuiltInDataTypeManager) {
				assertAllTypesInTree(dtm);
			}
			else {
				assertNoArrays(dtm);
				assertNoPointers(dtm);
			}
		}
	}
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