@Test
	public void testAsEntrySetSubSubSet() {
		assertEquals(KeySpan.closed(-2L, 2L), entrySet.subSet(ent(-2), true, ent(4), false)
				.subSet(ent(-4), true, ent(2), true).keySpan);
		assertEquals(KeySpan.closed(-1L, 2L), rEntrySet.subSet(ent(4), true, ent(-2), false)
				.subSet(ent(2), true, ent(-4), true).keySpan);
	}
This exists to verify behavior in {@link #testAsValuesSubIterator()}
Ghidra/Debug/ProposedUtils/src/test/java/ghidra/util/database/DBCachedObjectStoreTest.java