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💻 · iOS, CI, testing, engineering practices

iOS build systems, CI, Swift packages, testing infrastructure, and small engineering lessons from real work.

xcodebuild test❯xcodebuild test -scheme MyAppTest Suite 'MyApp.xctest' started ✓ testUserAuthFlow (0.003 sec) ✓ testBuildCacheHit (0.011 sec) ✓ testE2EDeviceFarm (0.142 sec)Test Suite finished · 3 suites✓ 47 tests passed0 failed · 0 skipped · 2.34s
E2E Testing Series3 parts
CI Engineering4 parts
CocoaPods Explained2 parts
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A Journey of Maintaining Device Farms for E2E Testing
2025-06-24mobilee2e
Swift Packages: Packaging as an XCFramework (1)
2025-06-08iosspm
Async Let Bindings: a Gotcha and a Closer Look
2025-03-25swiftconcurrency
In Search of Test Discovery Solutions in iOS
2025-03-08ciios
Swift Testing and the Compatibility With xcodebuild
2025-02-25ciios
Automation at Your Core
2025-02-17automation
WebDriverAgent - The Heart of iOS E2E Testing
2025-01-09mobilee2e
Overview of Mobile E2E Testing
2024-12-16mobilee2e
How Xcode Recognizes Module Imports
2024-05-05ios
pre-commit Environment Issue in SourceTree
2024-02-06iosci
Using pre-commit for Linters/Formatters
2024-02-01iosci
Using Swift Packages in CocoaPods-Based Projects
2023-12-30ioscocoapods
Designing Test Quarantine Logic to Deal With Flaky Tests
2023-09-17iosci
A Tale of Project Build Time Improvement
2023-08-29iosci
On Using Python for Scripting in iOS Projects
2023-08-22ciios
Code Signing on CI
2023-08-01ciios
50 Shades of Git: Remotes and Authentication
2023-02-14cigit
Cocoapods Explained: Plugins
2023-02-02cocoapodsios
CocoaPods Explained: Podfile
2022-12-17cocoapodsios
Dealing With Flaky UI Tests in iOS
2022-06-25ciios
CI: Heuristically Extracting Test Methods Before Runtime
2020-11-08ciios
CI: Thinning iOS Build Artifacts
2020-11-02ciios
When Project Labels are not Just to Categorize Things
2020-03-29ci
When iOS CI/CD Config is not Just a File or a Dashboard
2020-03-15ci
Tản mạn: chuyện Gitlab
2020-02-02ci
Random thoughts on being a CI engineer
2019-06-30ci
Swift: The downsides of lazy var (part 2)
2018-06-01iosswift
Swift: The downsides of lazy var (part 1)
2018-05-31iosswift
Config: Run shell script on login
2018-02-20configcommand-line
Markov chain: What is a Markov chain?
2018-01-31probabilitystatistics
Indicator r.v.s and the fundamental bridge
2018-01-04probabilitystatistics
MVVM best practice: Inputs - Outputs
2017-12-20iosarchitecture
An example of Survey with privacy
2017-11-14probabilitystatistics
How to stub network in iOS
2017-11-04iosswift
Quick thoughts on Tail recursion in Swift
2017-10-30swiftprogramming
Method Swizzling: What, Why and How
2017-10-20iosswift
Method dispatch in Swift
2017-09-25iosswift
How a Swift file is compiled
2017-09-23iosswift
What is Simpson's paradox?
2017-09-07probabilitystatistics
A misuse of Expectation
2017-07-30probabilityexpectation
Weight initialization - impact on layer distribution
2017-07-25neural-networks
A dive into Histogram of Oriented Gradients (HOG)
2017-07-13image-processing
Create custom Xcode templates
2017-02-28xcode
FAQ on ReactiveCocoa
2017-02-25ios
Garbage Collection (GC) algorithms
2017-02-25programminggarbage-collection
Swift: ExpressibleByStringLiteral
2016-12-03ios
Log events in ReactiveCocoa
2016-11-29ios
A freestyle way to config UIView
2016-09-11ios
Swift: Generic protocol (p.1)
2016-06-25ios
Swift: Concrete types in Protocol
2016-06-19ios
Swift: Currying
2016-04-17ios
Swift: Optional — map
2016-02-27ios
Swift: Box with recursive data structure
2015-10-17ios
RAC 3.0 with Login workflow
2015-08-22ios
Optional - Functional
2015-06-16ios