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Rayan Osseiran

PROFILE

Rayan Osseiran

Rayano contributed to the robolectric/robolectric repository by developing advanced telephony testing infrastructure for Android in Java. He built the SignalStrengthBuilder, enabling precise construction of SignalStrength objects for Robolectric tests and supporting configuration of CellSignalStrengths without deprecated setters. His work included comprehensive unit tests across multiple Android API levels, improving test reliability for telephony code. Rayano also enhanced ShadowTelephonyManager and ShadowSubscriptionManager to better mimic real device behavior, adding network country handling, subscription-change broadcasts, and helpers for opportunistic data subscriptions. These features increased test fidelity, reduced flakiness, and enabled robust, SDK-version-agnostic verification of telephony-related app behavior.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

5Total
Bugs
0
Commits
5
Features
4
Lines of code
708
Activity Months2

Work History

August 2025

4 Commits • 3 Features

Aug 1, 2025

August 2025 monthly summary for robolectric/robolectric focusing on Telephony shadow fidelity and testability. Implemented network country handling and updateAvailableNetworks in ShadowTelephonyManager, added subscription-change broadcasts in ShadowSubscriptionManager, and introduced get/set for preferred opportunistic data subscription in testing helpers. These changes improve realism of unit tests, enable SDK-version-agnostic verification, and deliver measurable business value by catching regressions earlier and aligning tests with real device behavior.

May 2025

1 Commits • 1 Features

May 1, 2025

May 2025 focused on strengthening the Robolectric test infrastructure. Key feature delivered: a SignalStrengthBuilder to construct android.telephony.SignalStrength instances in Robolectric tests, enabling configuration of CellSignalStrengths and avoiding deprecated setters. Includes unit tests across multiple Android API levels, improving test reliability and coverage for telephony-related code.

Activity

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Quality Metrics

Correctness100.0%
Maintainability100.0%
Architecture100.0%
Performance96.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

Java

Technical Skills

Android DevelopmentJavaRobolectricUnit Testing

Repositories Contributed To

1 repo

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

robolectric/robolectric

May 2025 Aug 2025
2 Months active

Languages Used

Java

Technical Skills

Android DevelopmentJavaUnit TestingRobolectric

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