odoo testing

models.py

from odoo import models, fields
from math import sqrt


def get_distance(place1, place2):
    distance = sqrt((place1.latitude - place2.latitude)**2 + (place1.longitude - place2.longitude)**2) * 111
    return distance


class Location(models.Model):
    _name = 'tourism_platform.location'
    _description = 'Collection of locations on map'

    name = fields.Char(required=True)
    photo = fields.Image(max_width=1000, max_height=1000)
    address = fields.Char()
    phones = fields.Char()
    website = fields.Char()
    short_description = fields.Text(string="Short Description")
    description = fields.Html(string="Description")
    latitude = fields.Float(required=True, default=0, digits=(3, 15))
    longitude = fields.Float(required=True, default=0, digits=(3, 15))
    google_map = fields.Char(default='Google Map')
    reviews_qty = fields.Integer(string='qty of views', readonly=True, compute='_get_reviews_qty')
    rating = fields.Float(string='rating of location', readonly=True, compute='_get_rating')

    categories = fields.Many2many('tourism_platform.category', required=True)
    images = fields.One2many('tourism_platform.image', 'location')
    reviews = fields.One2many('tourism_platform.review', compute='_get_reviews')
    places_nearby = fields.One2many('tourism_platform.location', compute='_get_places_nearby')

    def _get_reviews(self):
        for rec in self:
            reviews = self.env['tourism_platform.review'].search([('model', '=', 'tourism_platform.location'),
                                                                  ('obj_id', '=', rec.id)])
            rec.reviews = reviews

    def _get_reviews_qty(self):
        for rec in self:
            rec.reviews_qty = len(rec.reviews)

    def _get_rating(self):
        rating = 0
        rating_sum = 0
        for rec in self:
            if rec.reviews:
                for review in rec.reviews:
                    rating_sum += int(review.rating)
                rating = rating_sum / len(rec.reviews)
            rec.rating = rating

    def open_reviews(self):
        res = {
            'name': 'Review',
            'view_type': 'tree',
            'view_mode': 'list,form',
            'view_id': False,
            'res_model': 'tourism_platform.review',
            'context': "{'search_default_model_name': 'Location', 'search_default_obj_id': '%d'}" % self.id,
            'type': 'ir.actions.act_window',
            'target': 'main',
        }
        return res

    def _get_places_nearby(self):
        for rec in self:
            places_nearby = []
            locations = self.env['tourism_platform.location'].search([('id', '!=', rec.id)])
            for location in locations:
                if get_distance(rec, location) <= 30:
                    places_nearby.append(location.id)
            rec.places_nearby = self.env['tourism_platform.location'].search([('id', 'in', places_nearby)])

tests.py

from odoo.tests.common import TransactionCase


class TestModelLocation(TransactionCase):
    def setUp(self, *args, **kwargs):
        super(TestModelLocation, self).setUp(*args, **kwargs)

        self.category = self.env['tourism_platform.category'].create({'name': 'test_category'})
        self.rec = self.env['tourism_platform.location'].create({'name': 'test_location',
                                                                 'categories': [(4, self.category.id)]})
        self.review = self.env['tourism_platform.review'].create({'comment': 'test_comment',
                                                                  'rating': '5',
                                                                  'model': 'tourism_platform.location',
                                                                  'obj_id': self.rec.id})

    def test_creation(self):
        self.assertEqual(self.rec.reviews.id, self.review.id)
        self.assertEqual(self.rec.rating.id, self.review.id)
        self.assertEqual(self.rec.rating, 5.0)
        self.assertEqual(self.rec.reviews_qty, 1)