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Alexander Cooper

PROFILE

Alexander Cooper

Developed and stabilized the WebXR Android test execution infrastructure for the denoland/chromium_build repository, enabling comprehensive end-to-end WebXR browser testing on Android devices. The work involved integrating a mock OpenXR runtime, updating the test harness to automate runtime preparation, and deploying the runtime to a system-writable location to reduce flaky failures in continuous integration. Leveraging skills in Android development, Python scripting, and system integration, the developer also improved test reliability by introducing a dedicated test APK for OpenXR runtime deployment, ensuring accurate test resource usage. These efforts enhanced Android WebXR coverage and CI reliability, though local development speed was impacted.

Overall Statistics

Feature vs Bugs

33%Features

Repository Contributions

3Total
Bugs
2
Commits
3
Features
1
Lines of code
205
Activity Months2

Your Network

481 people

Same Organization

@chromium.org
325

Shared Repositories

156
Adrian TaylorMember
Arthur EubanksMember
Andrew GrieveMember
Ahmed YamoutMember
Amy HuangMember
Aaron KnoblochMember
Alex IlinMember
Andrea OrruMember
Andrew LambMember

Work History

February 2025

1 Commits

Feb 1, 2025

February 2025 monthly summary for denoland/chromium_build focusing on OpenXR runtime test deployment reliability and test resource accuracy.

January 2025

2 Commits • 1 Features

Jan 1, 2025

January 2025: Implemented WebXR Android test execution infrastructure and stabilized OpenXR Android tests for denoland/chromium_build, delivering end-to-end WebXR coverage on Android and more reliable CI results. The work added a mock OpenXR runtime and integrated runtime preparation into the test flow (commit 03ff285e13356633bd28ea1187e74b0e0c113441), and deployed the runtime to a system-writable location to prevent wipes to address flaky tests (commit 13c883f879cc533a53fb4961c9d3ad95a75079f3). This expanded test coverage, reduced flaky failures, and strengthened Android WebXR support. Technical focus included Android test automation, OpenXR, mock runtimes, and test harness updates. Note: local development may be slower due to the runtime deployment strategy.

Activity

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Quality Metrics

Correctness80.0%
Maintainability80.0%
Architecture73.4%
Performance66.6%
AI Usage20.0%

Skills & Technologies

Programming Languages

Python

Technical Skills

Android DevelopmentAndroid TestingBrowser TestingBuild System ConfigurationPython ScriptingSystem AdministrationSystem IntegrationTesting

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

denoland/chromium_build

Jan 2025 Feb 2025
2 Months active

Languages Used

Python

Technical Skills

Android DevelopmentBrowser TestingPython ScriptingSystem AdministrationSystem IntegrationTesting