Leonidas Tsementzis leotsem

Python testing reference

This document is a reference for common testing patterns in a Django/Python project using Pytest.

Contents:

Set-up and tear-down

The issue:

..mobile browsers will wait approximately 300ms from the time that you tap the button to fire the click event. The reason for this is that the browser is waiting to see if you are actually performing a double tap.

(from a new defunct https://developers.google.com/mobile/articles/fast_buttons article)

touch-action CSS property can be used to disable this behaviour.

touch-action: manipulation The user agent may consider touches that begin on the element only for the purposes of scrolling and continuous zooming. Any additional behaviors supported by auto are out of scope for this specification.

You can run these commands to encrypt or decrypt a string:

Command

To encrypt:

printf "Lorem ipsum dolor sit amet, ..." | \
  openssl enc -e -base64 -A -pbkdf2 -aes-256-cbc -pass pass:"my-password"

-e: Encrypt data

Mockups on user identity

[A video of an iOS implementation is available][8].

User identity

[The idea of a user identity][7] is a simple one with a goal to eliminate the requirement of a user entering a password. Any other requirement, including storing, transmitting and hashing should stay the same.

Introduction

As soon as a software is installed that supports user identities, a user is presented with a screen to identify.

	/*
	* CryptoJS by default:
	* - uses CBC mode
	* - pkcs7 for padding
	* - evpKDF to extract key
	* - part of the key is used as IV
	* - before converting to base64 it makes "Salt__"+salt+encrypted_text
	*/

	var CryptoJS = require('crypto-js');

	RN < 0.50 - watchman watch-del-all && rm -rf $TMPDIR/react-* && rm -rf node_modules/ && npm cache clean && npm install && npm start -- --reset-cache
	RN >= 0.50 - watchman watch-del-all && rm -rf $TMPDIR/react-native-packager-cache-* && rm -rf $TMPDIR/metro-bundler-cache-* && rm -rf node_modules/ && npm cache clean && npm install && npm start -- --reset-cache
	RN >= 0.63 - watchman watch-del-all && rm -rf node_modules && npm install && rm -rf /tmp/metro-* && npm run start --reset-cache

	npm >= 5 - watchman watch-del-all && rm -rf $TMPDIR/react-* && rm -rf node_modules/ && npm cache verify && npm install && npm start -- --reset-cache

	Windows - del %appdata%\Temp\react-native-* & cd android & gradlew clean & cd .. & del node_modules/ & npm cache clean --force & npm install & npm start -- --reset-cache

	'use strict';
	var gulp = require('gulp');
	var gutil = require('gulp-util');
	var del = require('del');
	var uglify = require('gulp-uglify');
	var gulpif = require('gulp-if');
	var exec = require('child_process').exec;


	var notify = require('gulp-notify');

	typedef enum _UIBackgroundStyle {
	UIBackgroundStyleDefault,
	UIBackgroundStyleTransparent,
	UIBackgroundStyleLightBlur,
	UIBackgroundStyleDarkBlur,
	UIBackgroundStyleDarkTranslucent
	} UIBackgroundStyle;

	@interface UIApplication (UIBackgroundStyle)
	-(void)_setBackgroundStyle:(UIBackgroundStyle)style;

	from Crypto.Cipher import AES
	from Crypto import Random

	BS = 16
	pad = lambda s: s + (BS - len(s) % BS) * chr(BS - len(s) % BS)
	unpad = lambda s : s[0:-ord(s[-1])]

	class AESCipher:
	def __init__( self, key ):
	"""

	import binascii
	import StringIO

	class PKCS7Encoder(object):
	def __init__(self, k=16):
	self.k = k

	## @param text The padded text for which the padding is to be removed.
	# @exception ValueError Raised when the input padding is missing or corrupt.
	def decode(self, text):