## 10.2\. CTS Verifier

The CTS Verifier is included with the Compatibility Test Suite, and
is intended to be run by a human operator to test functionality that cannot be
tested by an automated system, such as correct functioning of a camera and
sensors.

Device implementations:

*    [C-0-1] MUST correctly execute all applicable cases in the CTS verifier.

The CTS Verifier has tests for many kinds of hardware, including some hardware
that is optional.

Device implementations:

*    [C-0-2]  MUST pass all tests for hardware that they possess; for instance,
if a device possesses an accelerometer, it MUST correctly execute the
Accelerometer test case in the CTS Verifier.

Test cases for features noted as optional by this Compatibility Definition
Document MAY be skipped or omitted.

*    [C-0-2] Every device and every build MUST correctly run the CTS Verifier,
as noted above. However, since many builds are very similar, device
implementers are not expected to explicitly run the CTS Verifier on builds
that differ only in trivial ways. Specifically, device implementations that
differ from an implementation that has passed the CTS Verifier only by the
set of included locales, branding, etc. MAY omit the CTS Verifier test.