def METHOD_NAME(self):
    # Arrange, Act
    result1 = self.generator.generate()
    result2 = self.generator.generate()
    result3 = self.generator.generate()
    # Assert
    assert result1 == ClientOrderId("O-19700101-0000-001-001-1")
    assert result2 == ClientOrderId("O-19700101-0000-001-001-2")
    assert result3 == ClientOrderId("O-19700101-0000-001-001-3")