Voce Tem Orgulho Do Seu Codigo

http://www.ﬂickr.com/photos/caravinagre/1364614919/

Você tem orgulho do
seu código?

Samuel Crescêncio e Victor Hugo Germano

Victor Hugo Germano

/ victorhg

/* I realize that this program is a messy
compilation of inefficient coding, and
perhaps even stands as
something blasphemous in your eyes.
Coming midterms forced me to write the
program as is because this format required
the least amount of thinking as well as the
least amount of time. Therefore, I only ask
one thing of you: Be gentle. */

http://www.thedailywtf.com

Public static int getTestcell()
{
int i, neighbor, male, female, empty, value, num;
male = 0;
female = 0;
empty = 0;
value = 0;
num = 0;
if (spotvalue[n] == 0)
{
neighbor = n;
if (n == 0)
{
if (spotvalue[neighbor + 1] == 0)
empty = empty + 1;
else
{
male = male + 1;
female = female + 1;
}
empty = empty + 1;
else
{

male = male + 1;
}
empty = empty + 1;
else
{
male = male + 1;
}
if (male >= 1 && male <=2)
{
if (male == female)
{
num = rand.nextInt(2);
value = num + 1;
return value;
}
else
{
value = 0;

}
}
else
{
value = 0;
return value;
}
}
if (n == 19)
{
if (spotvalue[neighbor - 1] == 0)
empty = empty + 1;
else
{
male = male + 1;
}
empty = empty + 1;
else
{
male = male + 1;

}
empty = empty + 1;
else
{
male = male + 1;
}
if (male >= 1 && male <=2)
{
if (male == female)
{
num = rand.nextInt(2);
value = num + 1;
return value;
}
else
{
value = 0;
return value;
}
}
else

value = 0;
return value;
}
}
if (n == 380)
{
empty = empty + 1;
else
{
male = male + 1;
}
empty = empty + 1;
else
{
male = male + 1;
}
empty = empty + 1;

Até quando?

http://www.ﬂickr.com/photos/danielankers/2639889958/

http://www.mypix.com.br/site/pixpocketmag/super-geek-cinto-de-utilidades-ou-quase-isso/

“Nos dias de hoje, entregar uma
linha de código sem que ela seja
testada é Irresponsabilidade
Proﬁssional”
Robert Uncle Bob

Debugging
sucks! Testing Rules!

JUnit

Testes
dbUnit

JUnit

SQLUnit Testes
dbUnit

JUnit

SQLUnit Testes CppUnit
dbUnit

JUnit
NUnit

dbUnit

Fitnesse
JUnit
NUnit

dbUnit

Fitnesse
JUnit
NUnit

dbUnit
Selenium

Fitnesse
JUnit
NUnit

dbUnit
Selenium
JMeter

// create some properties and get the default Session
Properties props = new Properties();
props.put("mail.smtp.host", _smtpHost);
Session session = Session.getDefaultInstance(props, null);

// create a message
Address replyToList[] = { new InternetAddress(replyTo) };
Message newMessage = new MimeMessage(session);
if (_fromName != null)
newMessage.setFrom(new InternetAddress(from,
_fromName + " on behalf of " + replyTo));
else
newMessage.setFrom(new InternetAddress(from));
newMessage.setReplyTo(replyToList);
newMessage.setRecipients(Message.RecipientType.BCC,
_toList);
newMessage.setSubject(subject);
newMessage.setSentDate(sentDate);

// send newMessage
Transport transport = session.getTransport(SMTP_MAIL);
transport.connect(_smtpHost, _user, _password);
transport.sendMessage(newMessage, _toList);

Session session = this.loadDefaultConfiguration();

Message email = this.createEmailMessage(
fromName,
replyTo,
subject,
message );

this.sendMessage(session, email);

http://guilherme.pro/2009/04/05/why-i-dont-write-code-comments/

class Email {
public Email() { ... }
public void setFrom(String from) { ... }
public void setTo(String to) { ... }
public void send() {
// YOUR HOT CODE HERE
}
}


Email email = new Email ( );
email.setFrom( “test@localhost.net”);
email.setTo (“destino@localhost.net”);
email.setSubject (“Teste email”);
email.setMessage (“Mensagem”);
email.send();


new EmailMessage( )
.from("teste@localhost.net")
.to("destination@address.com")
.withSubject("Fluent Mail Example")
.withBody("What a nice code!")
.send();


O que este código faz?

java.util.Calendar c =
java.util.Calendar.getInstance();
c.set(2005, java.util.Calendar.NOVEMBER, 20);
long time = c.getTime();

http://www.slideshare.net/gvespucci/refactoring-an-introduction

long time = october(20, 2008);

http://www.ﬂickr.com/photos/schoeband/3861094589/sizes/l/ http://www.slideshare.net/gvespucci/refactoring-an-introduction

What is a Clean Code?

“Quando você olha para o código, percebe que
ele faz exatamente o que você esperava”
Howard Cunningham

http://railsconf.blip.tv/ﬁle/2089545/

Como medir
Clean Code??

cleanCode = WTF / sec

props.put("mail.smtp.host", _smtpHost); WTF?!

// create a message
else
_toList);

// send newMessage


// create a message

else
WTF?!
_toList);

// send newMessage


// create a message

else
WTF?!
_toList);

// send newMessage WTF?!

Test all the Fucking
time!

Automatização! Ant / Gant / Python


Maven / Javagems


Maven / Javagems

JUnit / Selenium


Maven / Javagems

JUnit / Selenium

Cuise Control


Maven / Javagems

JUnit / Selenium

Cuise Control

Findbugs

Doxygen

Collaboration
Call Hierarchy
Dot Representation
Documentation

http://www.stack.nl/~dimitri/doxygen

Código Coletivo

pair programming

http://www.ﬂickr.com/photos/menlopics/3928252097/in/set-72157607305293501/

Integração Contínua

Injeção de Dependência

DSLs


DSLs

Design Patterns


DSLs
Design by Contract
Design Patterns


DSLs
Design by Contract
Design Patterns
Orientação a Ojetos


DSLs
Design by Contract
Design Patterns
TDD


DSLs
Design by Contract
Design Patterns
TDD
Uma linguagem nova por ano

Trabalhe em Equipe!!!
Scrum Master

Obrigado!

@victorhg
http://google.com/proﬁles/victorhg

@oncast
samuel.crescencio@oncast.com.br

Voce Tem Orgulho Do Seu Codigo

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