Automate testing of C++ libraries on Android

[Irina]

Hello,

We are developing c++ libraries, that works on different platforms and  also on Android. For Android we build static libraries, that can be used in Android application via JNI. 

For library testing on Desktop system we have a set of binaries that can be run from command line. And I would like to run the same tests on Android.

To do so I rebuilt the test binary as so library for Android and use it in test application. The test application has very simple interface. It provides some options to user (like select the test that can be run, or select all tests to run consistently). Then I test this application by passing all test numbers. As a result i have some sort of automation tests. But I think such problems/questions should be solved many times.

So could you please suggest any automate tools/frameworks that will allow to run existed с++ tests automatically?

Best Regards,

Irina

[John Dallman]

The easy way to do this is to build your test program as an Android command-line tool, and run that in the "adb shell" environment. This what I've been doing for a very similar problem (C rather than C++). You do need to have a conventional Android app to check that your shared library runs OK in an Android app, but you've already done that. 

I can provide guidance on doing this, but it's all in command line terms, because I don't use Android Studio at all. If that would be useful to you, I can prepare some postings. 

John

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[Phil Burk]

Here is an example unit test from AAudio:

https://android.googlesource.com/platform/frameworks/av/+/master/media/libaaudio/tests/test_marshalling.cpp

Phil Burk

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[Steven Winston]

There's a few options:

1.) unit tests

 use googletest comes with the ndk. : https://chromium.googlesource.com/android_tools/+/7fc902d157a9aed7a2b68adc9c69181b3a43cd58/ndk/sources/third_party/googletest/README.NDK

2.) integration tests

 use monkeyrunner comes with the sdk : https://developer.android.com/studio/test/monkeyrunner/

3.) UI tests

  now we're talking about fun!  If you can use espresso (i.e. if you're using android's native ui stop reading use that same page as monkeyrunner link).  If you're using a custom UI then use MSER of some kind will find buttons monkeyrunner will allow clicks on XY locations.  OpenCV + monkeyrunner

There's a bunch of other solutions entirely dependent upon what your needs are.

[Irina]

Hello John,

Thank you for the answer.  That would be very helpful if you could prepare such postings.