assertSame(session, handle.getSession());
        verify(treeConnection).getSession();
    }

    @Test
    @DisplayName("ensureDFSResolved forwards to tree connection with locator")
    void ensureDFSResolvedDelegates() throws Exception {
        // Confirms DFS resolution is delegated with the correct locator
        // Act
        handle.ensureDFSResolved();
        // Assert & interaction verify