Unit Testing with GoogleTest

I cannot do a better job at describing GoogleTest than the people that work on GoogleTest. Please refer to their documentation for more information. As for examples within essentials, you can refer to unittests directory to see how things are configured. An example test you can look at is; unittests/container/array.cuh, please add an #include to your test to the unittests.hxx header file for it actually compile and run.