text: import unittest
  from ..utils import generate_address, signature_generator
  
  
  class TestGenerateAddress(unittest.TestCase):
  
      def test_address_is_length_is_42(self):
          address = generate_address(1)
          self.assertEqual(len(address), 42)
  
      def test_address_type_is_string(self):
          address = generate_address(1)
          self.assertEqual(type(address), str)
  
  
  class TestGenerateSignature(unittest.TestCase):
  
      def test_signature_generator_returns_string(self):
          signature = signature_generator("mosaic_dev", "tsvbdlsfshs", 45000)
          self.assertEqual(type(signature), str)