@Test
  public void testMemberNameIgnoredInPartialID() throws Exception {
    InternalDistributedMember partialID = connectAndSetUpPartialID();

    InternalDistributedMember internalDistributedMember = basicGetSystem().getDistributedMember();
    assertTrue(partialID.isPartial());
    assertFalse(internalDistributedMember.isPartial());

    assertEquals(internalDistributedMember, partialID);
    assertEquals(partialID, internalDistributedMember);
  }
GEODE-3043 surprise member added when member is already in the cluster

This test ensures that a partial ID (with no "name") is equal to its equivalent non-partial ID.
geode-core/src/distributedTest/java/org/apache/geode/distributed/DistributedMemberDUnitTest.java