20170302 tryswift tasting_tests

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Tasting tests at Cookpad
by @Kazu_cocoa
for Try!SwiftTokyo

Kazuaki Matsuo( @Kazu_cocoa)
: Cookpad Inc.
Test Engineer / Software Engineer in Quality
Lang: / / /
Maintainer: Appium Ru...

A bunch of themes in tests

Test Level
Focus on UI Tests

How UI Tests support
our development

We should know about
the test target
🍽

What is Cookpad?

https://www.similarweb.com/top-websites/category/food-and-drink/cooking-and-recipes

Cookpad for iOS(Japan and Global)
35 million users
(include Web/mobile)
63 million users
(include Web/mobile)
4Q and Full ...

Cookpad for iOS(Japan)
35 million users
(include Web/mobile)
63 million users
(include Web/mobile)

The app has been developed for a long time

How often Cookpad app changes
Release cycle: 2weeks ~ 1month
Code changes: 5,000 ~ 10,000 lines
UI changes: Frequently(lar...

kano-model and Japan market
Must-be
Attractive

Diachronic Quality for Mobile

take a break 🍵
Cookpad iOS app has been developed so long time.
Must-be quality in Japan is high, especially
crash free ra...

Tasting how re-engineering
the app with UI Tests😋🍴

We’ve been developed UI Tests
for mobile since 2014

Why have we implemented
this UI tests?🤔

Should we taste from?
Writing unit tests before refactoring is
sometimes impossible and often pointless.
Re-Engineering Le...

Basic strategy
👪
from
Internal
from
External

Make checkable from external to internal
Unit Tests
UI Tests
re-write/re-factor

Make checkable from external to internal
Unit Tests
UI Tests
re-write/re-factor
External

Make checkable from external to internal
Unit Tests
UI Tests
re-write/re-factor
Internal

Make checkable from external to internal
Unit Tests
UI Tests
re-write/re-factor
External

Make checkable from external to internal
Unit Tests
UI Tests
re-write/re-factor

Unit tests for Re-Engineering
Most developers would agree that unit test
should be fully automated,
Re-Engineering Legacy ...

Unit tests are not a silver bullet
but the level of automation for other kind of
tests(such as integration tests) is often...

UI Test should be automated
One area that cries out for automation is
UI testing.
Re-Engineering Legacy Software

Test Pyramid
UI Tests
Integration Tests
Unit Tests
Manual
Testing

Flipped pyramid make development
cycle slow
Unit Tests
UI Tests
Manual Testing
Integration Tests

Flipped pyramid make development
cycle slow
Unit Tests
UI Tests
Manual Testing
Integration Tests
the largest area
to check...

Flipped again
UI Tests
Integration Tests
Manual
Testing
Unit Tests
🔀Unit Tests
UI Tests
Manual Testing
Integration Tests

Conduct tests for combinations
8.0 8.1 8.2 8.3 8.4 9.0 9.1 9.2 9.3 10.0
iPhone ● ● ● ● ● ● ●
iPad ● ● ●
iPad
Pro
●

Automated UI Tests help Re-Engineering
2015/3 2017/2

implement the strategy

We’ve been developed UI Tests since 2014

Architecture for UI Tests
Scenarios steps wrapper
Appium
Binding
Focus on
User Scenario
Convert scenarios
to Ruby code
App...

Scenarios with data-driven testing
feature: A user can search several words via search field
background:
given Conduct tes...

steps/wrapper/bindings
step "Conduct tests with :device device" do |device|
start_device(device)
end
def start_device(devi...

🍛Seasoning🍲

Reduce dependency from internal
product code
find_element :xpath,
“//UIAApplication[1]/UIAWindow[1]/UIATableView[1]/UIATab...

Reduce dependency from internal
product code
find_element :xpath,
“//UIAApplication[1]/UIAWindow[1]/UIATableView[1]/UIATab...

Reduce dependency from internal
product code
find_element :xpath,
“//UIAApplication[1]/UIAWindow[1]/UIATableView[1]/UIATab...

Don't conduct tests
for all boundaries
in UI Tests

more 🍛🌶

image diff
e.g. Broken the order of Allow/Cancel button

image diff
e.g. Broken the order of Allow/Cancel button

Request counts

Request counts

Re-Engineering
re-write/re-factor without fear
for developers

introduce Swift

faster🚴 and more stable

Conclusion
Quality, Environment and Services change
frequently in Mobile
UI Tests support Re-Engineering
🍽🥗 🍛🍲

Do you get motivations
to challenge
automated UI Tests? 🙌

Don’t forget this kind of
challenges can’t do
in developer’s spare time
🍝 ≠ 🍜

Thanks for listening😋

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