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starting a python bdd presentation

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Julio Biason 7 years ago
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  1. BIN
      _images/bdd-behave.png
  2. BIN
      _images/bdd-robot.png
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      _images/bdd.jpg
  4. 0
      _sources/mr-banks/unclephil-flinkpipelinereal.dot
  5. 0
      _sources/mr-banks/unclephil-steps-drawio.xml
  6. 100
      _sources/python-bdd/mainsource.py
  7. 1
      _sources/python-bdd/users.json
  8. 282
      python-bdd.html

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_sources/python-bdd/mainsource.py
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#!/usr/bin/env python
# -*- encoding: utf-8 -*-
"""This is a sample code that simulates a user being created."""
from __future__ import print_function
import argparse
import json
from collections import Counter
from unicodedata import category
LOWERCASE_CHARS = "Ll"
UPCASE_CHARS = "Lu"
NUMBERS = "Nd"
class UserCreationError(Exception):
"""Base class for all exceptions in this module."""
pass
class PasswordIsNotStrongEnough(UserCreationError):
"""The password used is not strong enough."""
pass
class UserAlreadyExists(UserCreationError):
"""The user already exists in the database."""
pass
def password_is_strong(password):
"""Check if the password have enough strength."""
number_of = Counter(category(ch) for ch in password)
return (number_of[LOWERCASE_CHARS] >= 1 and
number_of[UPCASE_CHARS] >= 2 and
number_of[NUMBERS] >= 1 and
len(password) >= 12)
def get_users():
"""Retrieve the list of users in the system."""
data = {}
try:
with open('users.json') as origin:
data = json.load(origin)
except IOError:
# File does not exist, so we just assume it's empty
pass
return data
def save_users(user_list):
"""Save the user list back to the 'database'."""
with open('users.json', 'w') as target:
json.dump(user_list, target)
return
def create_user(user, password):
"""'Create' and user."""
if not password_is_strong(password.decode('utf-8')):
raise PasswordIsNotStrongEnough
users = get_users()
if user in users:
raise UserAlreadyExists
users[user] = password
save_users(users)
return
def main():
"""Expose the functions back in command line options."""
parser = argparse.ArgumentParser()
parser.add_argument('-u', '--user',
dest='user',
help='Username to be created',
required=True)
parser.add_argument('-p', '--password',
dest='password',
help='Password for the user',
required=True)
args = parser.parse_args()
try:
create_user(args.user, args.password)
except PasswordIsNotStrongEnough:
print("That password is not strong enough")
except UserAlreadyExists:
print("Username already used")
else:
print("User created")
return
if __name__ == "__main__":
main()

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_sources/python-bdd/users.json
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{"test": "Test123Test123"}

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python-bdd.html
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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>BDD em Python</title>
<meta name="description" content="Colocando uma aplicação Flask em produção em 40 minutos (ou menos)">
<meta name="author" content="Julio Biason">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, minimal-ui">
<link rel="stylesheet" href="reveal.js/css/reveal.css">
<link rel="stylesheet" href="theme/azion.css" id="theme">
<!-- Code syntax highlighting -->
<link rel="stylesheet" href="reveal.js/lib/css/zenburn.css">
<!-- Printing and PDF exports -->
<script>
var link = document.createElement( 'link' );
link.rel = 'stylesheet';
link.type = 'text/css';
link.href = window.location.search.match( /print-pdf/gi ) ? 'css/print/pdf.css' : 'css/print/paper.css';
document.getElementsByTagName( 'head' )[0].appendChild( link );
</script>
<!--[if lt IE 9]>
<script src="lib/js/html5shiv.js"></script>
<![endif]-->
<style type="text/css" media="screen">
.happy {
color: yellow;
}
.reveal section img {
border: none;
}
.reveal ul.empty {
list-style: none outside;
}
li {
display: block;
}
.cursor {
background-color: #666;
color: white;
}
img {
max-height: 90%;
}
td.seen {
font-style: italic;
font-weight: bold;
}
</style>
</head>
<body>
<div class="reveal">
<div class="slides">
<section>
<section data-background="_images/bdd.jpg" data-header>
<h1 class="semi-opaque">
BDD em Python
</h1>
</section>
</section>
<section>
<section>
<img src="_images/avatar-20170726.png" alt="Me" style="float:left;width:200px;" class="no-border">
<div>
<ul class="empty">
<li>Júlio Biason</li>
<li>Azion Technologies<img src="_images/azion-logo.png" alt="Azion logo" class='company-logo'></li>
<li>@juliobiason</li>
<li>julio.biason@gmail.com</li>
<li><a href="http://presentations.juliobiason.net">http://presentations.juliobiason.net</a></li>
</ul>
</div>
</section>
</section>
<section>
<section>
<img src="_images/bdd-robot.png" alt="" style="background-color:black"/>
<img src="_images/bdd-behave.png" alt=""/>
</section>
</section>
<section>
<section>
<h2>Gherkin</h2>
<p style="text-align:left">
Given <span class="fragment">Definição do ambiente</span> <br/>
When <span class="fragment">O teste</span><br/>
Then <span class="fragment">Validação do teste</span><br/>
</p>
<aside class="notes">
Esse é o formato do "Gherkin", popularizado pelo framework
"Cucumber" de Ruby.
"Given" define o ambiente do teste; "Dado que" (eu tenho isso)...
"When" define o teste em si; "quando" (... eu fizer essa coisa)...
"Then" define a validação; "então" (... isso deve ter acontecido)
</aside>
</section>
</section>
<section>
<section>
<h2>Código sendo testado</h2>
<pre><code>
#!/usr/bin/env python
# -*- encoding: utf-8 -*-
"""This is a sample code that simulates a user being created."""
from __future__ import print_function
import argparse
import json
from collections import Counter
from unicodedata import category
LOWERCASE_CHARS = "Ll"
UPCASE_CHARS = "Lu"
NUMBERS = "Nd"
class UserCreationError(Exception):
"""Base class for all exceptions in this module."""
pass
class PasswordIsNotStrongEnough(UserCreationError):
"""The password used is not strong enough."""
pass
class UserAlreadyExists(UserCreationError):
"""The user already exists in the database."""
pass
def password_is_strong(password):
"""Check if the password have enough strength."""
number_of = Counter(category(ch) for ch in password)
return (number_of[LOWERCASE_CHARS] >= 1 and
number_of[UPCASE_CHARS] >= 2 and
number_of[NUMBERS] >= 1 and
len(password) >= 12)
def get_users():
"""Retrieve the list of users in the system."""
data = {}
try:
with open('users.json') as origin:
data = json.load(origin)
except IOError:
# File does not exist, so we just assume it's empty
pass
return data
def save_users(user_list):
"""Save the user list back to the 'database'."""
with open('users.json', 'w') as target:
json.dump(user_list, target)
return
def create_user(user, password):
"""'Create' and user."""
if not password_is_strong(password.decode('utf-8')):
raise PasswordIsNotStrongEnough
users = get_users()
if user in users:
raise UserAlreadyExists
users[user] = password
save_users(users)
return
def main():
"""Expose the functions back in command line options."""
parser = argparse.ArgumentParser()
parser.add_argument('-u', '--user',
dest='user',
help='Username to be created',
required=True)
parser.add_argument('-p', '--password',
dest='password',
help='Password for the user',
required=True)
args = parser.parse_args()
try:
create_user(args.user, args.password)
except PasswordIsNotStrongEnough:
print("That password is not strong enough")
except UserAlreadyExists:
print("Username already used")
else:
print("User created")
return
if __name__ == "__main__":
main()
</code></pre>
</section>
</section>
<section>
<section>
<h2>Robot Framework</h2>
</section>
</section>
<section>
<section>
<h2>Behave</h2>
</section>
</section>
<section data-background='_images/thats-all-folks.jpg'>
<section>
<h1 class="fragment semi-opaque">Perguntas?</h1>
</section>
</section>
</div>
</div>
<script src="reveal.js/lib/js/head.min.js"></script>
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