@Test
    fun `can handle Externalizable beans`() {
        verifyRoundtripOf({ ExternalizableBean().apply { value = 42 } }) {
            assertThat(
                it.value,
                equalTo(42)
            )
        }
    }

    @Test
    fun `can handle Externalizable beans that contain serializable beans`() {
        verifyRoundtripOf({ ExternalizableBeanContainingSerializable(33, 42 to "foo") }) {