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Yegor Bugayenko
Joker 2018
St.Petersburg, Russia
20 October 2018
Quality vs. Quantity

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zerocracy.com
2
The Gist:
Mistakes must be
forgivable, not enough
code—not.

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Zerocracy

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@yegor256 1.9K

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takes.org

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cactoos.org

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3rd Volume
Summer 2019

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@yegor256news

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Quality?

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Bad Guys?

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Can We Improve?

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“A good programmer will
produce fault-free code,
while a bad programmer will
produce code that is fault-
ridden.”
Good Coder = Less BugsWrong!

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“Some people mistakenly refer to software defects as
bugs. When called bugs, they seem like pesky things that
should be swatted or even ignored. This trivializes a
critical problem and fosters a wrong attitude. Thus, when
an engineer says there are only a few bugs left in a
program, the reaction is one of relief. Suppose, however,
that we called them time bombs instead of bugs. Would
you feel the same sense of relief if a programmer told you
that he had thoroughly tested a program and there were
only a few time bombs left in it? Just using a different
term changes your attitude entirely.”
Bug = Time BombWrong!

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Fear Driven Development

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“If you’re scared of making changes, you can’t make
something dramatically better, or do that big code
cleanup. Maybe you can’t even deploy the code that
you already wrote and tested, because it feels too
scary. You just want to stick what’s sort-of-working,
even if it’s not great.”
“Fear makes you a worse programmer”
Julia Evans, https://goo.gl/MeLGxN

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Tech Debt
Stale Branches
Boring
Stress

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Fix the Process, not People

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Blame-Free Environment

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Repository Production
Staging
Programmers End-Users
Testers Pipeline

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1 Reject It!
Repository Production
Staging

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“Each stage of a build pipeline is
looking for reasons to reject the build.
Tests failed? Reject it. Lint complains?
Reject it. Build fails integration tests in
staging? Reject it. Finished archive
smells funny? Reject it.”

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Liquibase
Green/Blue
Deployment
CI/CD
rultor.com

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2
Repository
Programmers
Quality Wall

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Checkstyle
PMD
FindBugs
xcop
JaCoCo
enforcer(s)
anti-duplicates
xTests
warnings

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3 Testers, Not Approvers
Repository Production
Staging
Testers

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4 Crash Fast
Production
End-Users
Programmers ?

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sentry.io

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5 Encourage Bugs
Repository
Staging Programmers
Testers
Reports

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$$$
Zerocracy
We pay per each bug reported

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Pull Requests, or Bugs, or…
You Are Out!

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Speed, not Quality

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6 Educate Money People
Bosses
Programmers ProductionReports

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It’s impossible :(