old_contents: import pytest
  
  from tsstats.client import Client, Clients
  
  clients = Clients()
  cl1 = Client('1')
  cl2 = Client('2')
  clients += cl1
  clients += cl2
  uidcl1 = Client('UID1')
  uidcl2 = Client('UID2')
  clients += uidcl1
  clients += uidcl2
  
  
  def test_client_get():
      assert clients['1'] == cl1
      assert clients['2'] == cl2
      assert clients['UID1'] == uidcl1
      assert clients['UID2'] == uidcl2
      with pytest.raises(KeyError):
          clients['3']
          clients['UID3']
  
  
  def test_client_repr():
      assert str(clients['1']) == '<1,None>'
      assert str(clients['2']) == '<2,None>'
      assert str(clients['UID1']) == '<UID1,None>'
      assert str(clients['UID2']) == '<UID2,None>'
  
  
  def test_clients_iter():
      client_list = list(iter(clients))
      assert cl1 in client_list
      assert cl2 in client_list
      assert uidcl1 in client_list
      assert uidcl2 in client_list
  
new_contents: import pytest
  
  from tsstats.client import Client, Clients
  
  clients = Clients()
  cl1 = Client('1')
  cl2 = Client('2')
  clients += cl1
  clients += cl2
  uidcl1 = Client('UID1')
  uidcl2 = Client('UID2')
  clients += uidcl1
  clients += uidcl2
  
  
  def test_client_get():
      assert clients['1'] == cl1
      assert clients['2'] == cl2
      assert clients['UID1'] == uidcl1
      assert clients['UID2'] == uidcl2
      with pytest.raises(KeyError):
          clients['3']
          clients['UID3']
  
  
  def test_client_repr():
      assert str(clients['1']) == '<1,None>'
      assert str(clients['2']) == '<2,None>'
      assert str(clients['UID1']) == '<UID1,None>'
      assert str(clients['UID2']) == '<UID2,None>'
  
  
  def test_clients_iter():
      client_list = list(iter(clients))
      assert cl1 in client_list
      assert cl2 in client_list
      assert uidcl1 in client_list
      assert uidcl2 in client_list
  
  
  def test_clients_delete():
      del clients['1']
      assert cl1 not in clients
  
subject: cover tsstats.client.Clients.__del__