@Test
  public void testCreateOrGetChatUserUserObjectPopulatedMap() throws Exception {
    when(chatPrefs.getChatColorMode()).thenReturn(chatColorMode.get());
    when(chatPrefs.getUserToColor()).thenReturn(userToColorProperty);

    ChatUser addedUser = instance.createOrGetChatUser("chatUser1");
    ChatUser returnedUser = instance.createOrGetChatUser("chatUser1");

    assert returnedUser == addedUser;
    assertEquals(returnedUser, addedUser);
  }
  @Test
  public void testCreateOrGetChatUserStringEmptyMap() throws Exception {
    when(chatPrefs.getChatColorMode()).thenReturn(chatColorMode.get());
    when(chatPrefs.getUserToColor()).thenReturn(userToColorProperty);

    ChatUser returnedUser = instance.createOrGetChatUser("chatUser1");

    assert returnedUser != chatUser1;
    assertEquals(returnedUser, chatUser1);
  }