text: import pytest
  from absql import Runner
  from pendulum import now
  from datetime import timedelta
  
  
  @pytest.fixture
  def runner():
      return Runner()
  
  
  @pytest.fixture
  def yesterdate():
      return (now(tz="utc") - timedelta(days=1)).to_date_string()
  
  
  @pytest.fixture
  def yesterhour():
      return (
          (now(tz="utc") - timedelta(hours=1, days=0))
          .replace(minute=0, second=0)
          .to_datetime_string()
      )
  
  
  def test_previous_date(runner, yesterdate):
      assert runner.render("{{previous_date()}}") == yesterdate
  
  
  def test_previous_hour(runner, yesterhour):
      assert runner.render("{{previous_hour()}}") == yesterhour
  