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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Volodymyr Kimak
Mobile CI/CD.
Cross-platform app approach
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
About me
Senior .NET Engineer
8+ years in .NET,
4+ years in mobile (Xamarin),
IF .NET User Group co-organiser
IF Mobile User Group organiser
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Agenda
● Why test automation is essential
● UI Test parallelism
● CI/CD prerequisites
● CI/CD sample flow
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Why test automation is essential for CI/CD
● It is required by Continuous deployment practice
● Decreases time for regression testing
● Works well with small changes
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Why users are not satisfied with mobile apps ?
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Why users are not satisfied with mobile apps ?
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Mobile testing
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Relative cost of defect, by time of discovery
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Why test on real devices?
● Real devices have non-optimal network conditions and run a lot of
apps at the same time
● Many of phone gestures cannot be simulated
● There are a bunch of third-party libraries that require a specific
type of hardware, and that cannot be run on an emulator
● Real devices are good for performance testing
● Users use apps on real devices, not on emulators
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Mobile “traditional” (real-life) Test Pyramid
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Mobile Modified Test Pyramid
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Mobile app architecture
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
UI Tests: Parallelism
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● On-premises
● Cloud based

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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Git workflow: Gitflow
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Mobile app configuration
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● App Id
● App name
● App version
● App settings
● App analytics
● App diagnostics
● App distribution

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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
CI/CD Pipeline solutions
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● TeamCity
● Visual Studio App Center
● Azure DevOps

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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Sample CI/CD flow
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● Git: gitflow
● Test/Diagnostics: AppCenter
● CI/CD: Azure Devops
● App: multi platform iOS/Android on Xamarin

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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Library: Environment variables / app settings
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
App Center: app per environment
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Build: Pull Request to Develop
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Build: Pull Request to Release/Hotfix
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Build: Develop
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Build: Release/Hotfix
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Build: Task groups
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Release: Develop
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Release: Release/Hotfix
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Release: Release/Hotfix
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
AppCenter Test
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
AppCenter Test
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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Summary
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● Frequent and stable releases to Production
● Improves mobile application architecture and code
quality
● CI/CD integration - a must-have for a mobile project
● DevOps is a culture, not a role!

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Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Questions?
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