Maestro - UI testing framework

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Maestro 10 | 2023 © TRADE REPUBLIC BANK 2023 1

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Topic Zhanibek Marshal Senior Engineer at Trade Republic © TRADE REPUBLIC BANK 2023 | Paparazzi: Snapshot testing made easy Hello again 👋 ● Twitter: @megasuperhero ● Mastodon: @zhanibek@androiddev.social ● TR engineering blog: https://engineering.traderepublic.com/ 2

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© TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 01. How we ended up to Maestro? Brief overview of the investigation objectives. 02. Integration of Maestro Explanation of the steps taken to integrate Maestro into Android project and iOS 03. Writing Test Case Flows Overview of the approach to writing test case flows using Maestro 04. Maestro Studio An overview of Maestro Studio, the integrated development environment (IDE) for creating Maestro test cases. 05. Maestro Cloud Introduction to Maestro Cloud, a platform for test execution and collaboration. 06. Learnings All views mine, no one else’s. 07. Q&A 3

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How we ended up to Maestro? Brief overview of the investigation objectives. © TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 4

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Our regression testing* started to take a lot of time on each release train *manual That's why we proposed Maestro as one of the options. “ © TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 5

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Topic We have over 100 test cases to verify before we deploy a new version © TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 6

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Then I heard* that Maestro is very simple and effective solution for writing UI tests *from colleagues and at Droidcon Berlin 23 “ © TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 7

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Integration of Maestro Explanation of the steps taken to integrate Maestro into Android project © TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 9

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Topic Run the following command to install Maestro on Mac OS, Linux or Windows (WSL) Install Maestro © TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 10

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Topic Will automatically detect and use any local emulator or physical* device. *USB connection has an issue[829] Run Maestro test © TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 11

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Topic Had to find a solution to resolve an One Time Password(OTP) on test environment Automatic OTP retriever © TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 12

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Topic Before running Flows on iOS Simulator*, install Facebook IDB tool *At the moment, Maestro does not support real iOS devices 🍎 iOS © TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 13

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Writing Test Case Flows Overview of the approach to writing test case flows using Maestro © TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 14

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Topic ● launchApp ● tapOn - tap on anything that visible on screen ● inputText ● runFlow - run commands from another file ● takeScreenshot - saves a screenshot in a PNG file ● assertVisible Common commands © TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 15

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Topic Now you can write a test cases © TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 26

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Topic © TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 27

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Maestro Studio An overview of Maestro Studio, the integrated development environment (IDE) for creating Maestro test cases. © TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 28

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Topic Run $maestro studio on command line © TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 29

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Maestro Cloud Introduction to Maestro Cloud, a platform for test execution and collaboration. © TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 31

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Has Github Actions integration *need to grant an access to pull requests “ © TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 32

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Cloud console Free $10.00 credit for each month to experiment the usage. “ © TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 34

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Cloud console Free $10.00 credit for each month to experiment the usage. “ © TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 35

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Topic Monthly Cost = (# of Uploads per Month) x (# of Flows) x ($0.10 USD) Monthly Cost = (2 + 30) x 100 x ($0.10 USD) Monthly Cost = $320 Pricing model © TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 37

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© TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework 3: It’s really easy to write a regression test No extra setup required on a platform and everybody without knowledge of the platform can write them. 42

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Topic ● Maestro documentation: https://maestro.mobile.dev/ ● Maestro Cloud: https://cloud.mobile.dev/ ● Pricing calculator: https://console.mobile.dev/pricing-calculator Related links 44 © TRADE REPUBLIC BANK 2023 |Maestro - UI testing framework