text: import json
  import os.path
  
  # TODO: add requirements!
  import pytest
  
  from blockapi.v2.api.covalenth.ethereum import EthCovalentApi
  
  
  @pytest.fixture
  def covalenth_eth_balances_response():
      json_path = os.path.abspath(
          os.path.join(os.path.dirname(__file__), "ethereum.json")
      )
      with open(json_path) as f:
          return json.load(f)
  
  
  @pytest.fixture
  def eth_covalent_api():
      return EthCovalentApi(api_key="test_key")
  
  
  def test_parse_balance(eth_covalent_api, covalenth_eth_balances_response):
      expected_len = len(covalenth_eth_balances_response["data"]["items"])
      parsed_items = list(eth_covalent_api._parse_items(covalenth_eth_balances_response))
      assert len(parsed_items) == expected_len
  