gidgid

from dataclasses import dataclass


def test_given_dicts_with_the_same_keys_values_then_they_are_equal():
    user = {"name": "John", "lastname": "Doe", "age": 42}
    employee = {"name": "John", "lastname": "Doe", "age": 42}

    assert user == employee, "Ideally, these would be different"

gidgid

from typing import Dict


ids_to_names: Dict[str, str] = {
    "1234": "John",
    "2345": "Doe",
    "3456": "Alice",
    "4567": "Bob",
}  # 1

gidgid

def crawl_page(url, crawl_request):
    output_file = crawl_request["output_file"]  # 1
    num_retries = crawl_request["num_retries"]  # 1
    is_polite = crawl_request["is_polite"]  # 1
    follow_redirects = crawl_request["follow_redirects"]  # 1
    # rest of the implementation excluded for the sake of brevity


crawl_request = {
    "output_file": "page_content.csv",

gidgid

def crawl_page(url, output_file, num_retries):  # 1
    """
    Implementation omitted for the sake of brevity
    """


crawl_page(
    url="http://hopefully.doesnt.exi.st", output_file="page_content.csv", num_retries=4
)

gidgid

import pytest
from typing import List
from pydantic import BaseModel


class Names(BaseModel):
    values: List[str]


def test_values_is_not_part_of_the_input_data():

gidgid

import pytest
from pydantic import BaseModel, ValidationError, StrictInt, StrictBool


class UserResponse(BaseModel):
    user_input: StrictBool  # 1


def test_only_bool_responses_are_accepted():
    assert UserResponse(user_input=True).user_input is True  # 2

gidgid

from pydantic import BaseModel, PositiveInt


class UserResponse(BaseModel):
    user_input: bool  # 1


def test_what_did_the_user_mean():
    assert UserResponse(user_input='yes').user_input is True  # 2

gidgid

import pytest
from pydantic import BaseModel, conlist, constr, ValidationError


class User(BaseModel):
    name: constr(min_length=1)  # 1
    scores: conlist(int, min_items=1)  # 2


def report(user: User):

gidgid

import pytest
from pydantic import BaseModel, ValidationError


class Pizza(BaseModel):
    toppings_count: int
    size: str

    class Config:  # 1
        validate_assignment = True  # 2

gidgid

from pydantic import BaseModel


class Pizza(BaseModel):
    toppings_count: int
    size: str


def test_set_field_doesnt_perform_coercion():
    pizza = Pizza(toppings_count='4', size='XL')  # 1