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2023

Illustration: Migrating from Puppeteer to Playwright DEVELOPMENT  |  Web • Testing Migrating from Puppeteer to Playwright How we migrated from Puppeteer to Playwright in our test suite.

2022

Illustration: How We Make Our CI Fast DEVELOPMENT  |  Testing • Productivity • Insights How We Make Our CI Fast Principles we apply to improve our CI efficiency.
Illustration: How We Use Property Testing DEVELOPMENT  |  Web • Elixir • Testing • Insights How We Use Property Testing Some real-life examples of how we use property testing in PSPDFKit Server testing.

2021

Illustration: A Case for Fast CI DEVELOPMENT  |  Testing • Productivity • Insights A Case for Fast CI How slow build times lower your team’s productivity, and how to change this.
Illustration: Managing CI Pipelines with Terraform DEVELOPMENT  |  Productivity • Testing • Insights Managing CI Pipelines with Terraform Learn about Terraform and how we use it to manage our Buildkite pipelines.
Illustration: Swift Render Tests in Practice — Part III DEVELOPMENT  |  iOS • Swift • Testing • Tips Swift Render Tests in Practice — Part III How to automate regenerating and updating reference images for render tests.
Illustration: Swift Render Tests in Practice - Part II DEVELOPMENT  |  iOS • Swift • Testing • Tips Swift Render Tests in Practice - Part II How to improve test failures with attachments and grouping related test output.
Illustration: Swift Render Tests in Practice - Part I DEVELOPMENT  |  iOS • Swift • Testing • Tips Swift Render Tests in Practice - Part I How to pragmatically approach render testing for custom drawing code.
Illustration: Automating Test Retries DEVELOPMENT  |  iOS • Testing • Xcode Automating Test Retries We walk through our experience of dealing with flaky tests by automatically retrying them.
Illustration: Load Testing PSPDFKit Server DEVELOPMENT  |  Server • JavaScript • Testing Load Testing PSPDFKit Server How we figured out what it takes to run PSPDFKit Server.
Illustration: Why Should You Care about Manual Testing? DEVELOPMENT  |  Android • Web • Testing • UI/UX • Insights Why Should You Care about Manual Testing? How to approach manual testing pragmatically for quality products you can be proud of.
Illustration: Deflaking CI Tests with xcresults DEVELOPMENT  |  iOS • Swift • Objective-C • Xcode • Testing Deflaking CI Tests with xcresults We’re sharing some techniques for tracking down and fixing flaky Xcode tests on CI.
Illustration: Continuous Integration: From Jenkins to Buildkite DEVELOPMENT  |  iOS • Testing Continuous Integration: From Jenkins to Buildkite Learn why we moved from Jenkins to Buildkite, what the current most promising services are, and how we evaluated them.
Illustration: Automating macOS Provisioning with Chef DEVELOPMENT  |  iOS • Testing Automating macOS Provisioning with Chef Learn how to use Chef to automatically provision macOS machines for CI: infrastructure as code

2020

Illustration: Managing macOS Hardware: Virtualization or Bare Metal? DEVELOPMENT  |  iOS • Testing Managing macOS Hardware: Virtualization or Bare Metal? We explore the different ways to run macOS in the cloud, comparing virtualization via VMware, Anka, and Orka with running a fleet of bare metal machines on Amazon or MacStadium.
Illustration: Continuous Integration for Small iOS/macOS Teams DEVELOPMENT  |  iOS • Testing Continuous Integration for Small iOS/macOS Teams In this new series, we're sharing our approach to macOS continuous integration for smaller teams that can't dedicate an entire team to CI management or aren't willing to invest five-figure sums per year for their setup.
Illustration: Executable API Documentation with the LLVM Integration Tester and FileCheck DEVELOPMENT  |  Python • Testing Executable API Documentation with the LLVM Integration Tester and FileCheck This post covers what executable documentation is and how you can use the LLVM Integration Tester to create it.
Illustration: How to Reduce Flakiness in Automated UI Testing on Android DEVELOPMENT  |  Android • Kotlin • Tips • Productivity • Testing How to Reduce Flakiness in Automated UI Testing on Android This blog post discusses tips and best practices on how to reduce flakiness in automated UI testing on Android.
Illustration: Our Approach to Testing a Large-Scale C++ Codebase DEVELOPMENT  |  C++ • Tips • Testing Our Approach to Testing a Large-Scale C++ Codebase This blog post outlines the frameworks and techniques PSPDFKit uses to test its large-scale C++ codebase.
Illustration: Filtering Tests in Android DEVELOPMENT  |  Android • Java • Testing • Gradle Filtering Tests in Android A look at the android.support.test.filters library and what it provides you with.

2018

Illustration: Rendering Tests Using Robolectric DEVELOPMENT  |  Android • Testing Rendering Tests Using Robolectric Rendering tests using Robolectric with a custom bitmap shadow.
Illustration: Adding Spellchecking to Your Tests DEVELOPMENT  |  Ruby • Testing Adding Spellchecking to Your Tests How we added simple spelling and grammar checks to our website build process to catch some common mistakes.

2017

Illustration: How We Test and Generate Interactive CSS Documentation DEVELOPMENT  |  Web • Elixir • Testing How We Test and Generate Interactive CSS Documentation Automating CSS testing and documentation with Hound and Webdriver

2016

Illustration: Running Tests with Clang's AddressSanitizer DEVELOPMENT  |  iOS • Android • Testing Running Tests with Clang's AddressSanitizer Clang has powerful sanitizers that are incredibly useful, so we collected our experiences using them between iOS, Android, and our C++ core to help you through some gotchas.
Illustration: Converting Xcode Test Runs to JUnit, the Fast Way DEVELOPMENT  |  iOS • Testing Converting Xcode Test Runs to JUnit, the Fast Way
Illustration: End–to–End Testing: What, Why, and How? DEVELOPMENT  |  Instant • Testing End–to–End Testing: What, Why, and How?
Illustration: Testing HTTP APIs in Elixir DEVELOPMENT  |  Web • Instant • Elixir • Testing Testing HTTP APIs in Elixir
Illustration: Selective Pull Request Testing DEVELOPMENT  |  Testing • Tips Selective Pull Request Testing
Illustration: Continuous iOS Code Coverage With Jenkins and Slather DEVELOPMENT  |  iOS • Testing Continuous iOS Code Coverage With Jenkins and Slather
Illustration: Running UI Tests on iOS With Ludicrous Speed DEVELOPMENT  |  iOS • Performance • Testing • UI/UX Running UI Tests on iOS With Ludicrous Speed