I checked a previous answer about unit test for Android, where it is suggested Googletest as a good option. However, I got a look into the Google C++ Testing Framework - Googlet
You need to built Googletest for Android to be able to run it with your toolchain, as you working with cross-compilation.
Download source code of googletest
$ mkdir googletest
$ cd googletest
$ svn checkout http://googletest.googlecode.com/svn/trunk/ .
Copy jni directory to googletest directory
$ cd /path/to/this/git
$ cp -r jni googletest/
run ndk-build script
$ cd googletest/ $ ndk-build
You can find libgtest.a in googletest/obj/local/armeabi/libgtest.a
Source: sfuku7 / googletest_android_ndk-build - github