throw new AssertionError("Failed to create SMB URL: " + spec, e);
        }
    }

    // Utility to build a minimal locator for connect tests
    private static SmbResourceLocatorImpl newLocator(CIFSContext ctx) {
        return new SmbResourceLocatorImpl(ctx, smbUrl("smb://server/share"));
    }

    @Test
    @DisplayName("Constructor with CIFSContext: creates instance")