@Test
	public void testContainsKey() {
		try (Transaction tid = trans()) {
			assertFalse(store.containsKey(0));
			@SuppressWarnings("unused")
			MyObject obj = store.create();
			assertTrue(store.containsKey(0));
		}
	}
This exists to verify behavior in {@link #testAsValuesSubIterator()}
Ghidra/Debug/ProposedUtils/src/test/java/ghidra/util/database/DBCachedObjectStoreTest.java