VTS stands for Vendor Test Suite, and is the standard test suite of Android system.

Developer testing refers to using tests written by developers with component domain expertise and is usually used to test a feature or a bug fix that was recently developed or is under development.

VTS structural testing framework is developed to encourage such TDD (Test-Driven Development) culture in the Android system development. Historically, TDD was not widely used in certain consumer electronics industry segments as compared with some other industry (e.g., for mission-critical or high-availability systems). As the Android system is being used widely (i.e., requiring frequent security patching and fast feature launch velocity), we think that it is a right cultural shift for this time.

Currently, all VTS tests are designed for userdebug or eng build devices only.

Table of Contents

1. Host-Driven Tests

   • Codelab for Shell-Based Simple Test
   • Codelab for VTS Specification File
   • Codelab for HIDL HAL Tests

2. Native Code Coverage

   • Codelab for Native Code Coverage Measurement
   • Native Coverage Information and FAQ

3. Enable Profiling for VTS HIDL HAL Tests

   • Codelab for Profiling VTS HIDL HAL Tests

4. FAQs

   • How to directly run a VTS test without using VTS-TradeFed