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    def test_picture_path_is_correct(self):
        obj = self.create_obj()
        abs_path = os.path.join(settings.TEST_MEDIA_ASSETS_FOLDER, 'profile_picture_1280.png')
        obj.picture.save('filename.png', ImageFile(open(abs_path, 'rb'))) # this line reads image and store it as binary
        obj.save()
        self.assertTrue(os.path.isfile(obj.picture.path))

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import typing
from abc import ABC

_th_base = typing.TypeVar('_th_base', bound='BaseKlass')


class BaseKlass(ABC):
    def __init__(self,  selected_topic):        
        self.selected_topics = selected_topics      

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import datetime
from django.template import Template
from django.template.context import Context, RequestContext

def test_is_today(self):
  template = Template('{% load sample_tags %} {{ date|is_today }}')
  rendered = template.render(Context({'date': self.today}))
  self.assertEqual(str(True), str(rendered).strip())
  rendered = template.render(Context({'date': self.today + datetime.timedelta(days=1)}))
  self.assertEqual(str(False), str(rendered).strip())

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from django.test import TestCase

from path.to.abstract.model import SomeAbstractModel


class SampleModel(SomeAbstractModel):    
    class Meta:
        # app_label is needed in cases where tests are in folder of project to be able to find this model
        app_label = 'app.name.of.where.abstract.model.is.defined'

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from django.forms import BaseModelFormSet

from app.companies.models import CompanyBranchPaymentOptions


class PaymentsBaseFormSet(BaseModelFormSet):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.__full_id_queryset = CompanyBranchPaymentOptions.objects.get_full_queryset()

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value_list = [
    {
        'name': 'a',
        'value': '1',
    },
    {
        'name': 'a',
        'value': '2',
    },
    {

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# bug described here - https://code.djangoproject.com/ticket/33813
----
# Definitions
# models
class ReviewsModelManager(models.Manager):
    def get_queryset(self):       
        qs = super().get_queryset()
        qs = qs.filter(published=True)
        return qs

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import logging

import time

logger = logging.getLogger('MyLogger')


def measure_run_time(func):
    def wrapper(*args, **kwargs):
        total_start_time = time.time_ns()

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def decorator(func):
   """This is a decorator function. It takes some function as a parameter, 'wraps it' in code
   and RETURNs wrapped function
   This is a way to add functionality without changing base code"""

   def wrap(text='this is base function'):
       print('this is pre-function')
       func(text)
       print('this is post func')

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"""getters, setters and property decorators examples
   Used to get and set protected variables(starts with _)
   using property makes all code call getter and setter functions when rear and write do this class protected variable"""


class AddTesterToString:
   def __init__(self, input_string):
       self.input_string = input_string

   # def getter function - gets _protected variable