Add a CMake based buildsystem for the tests.

This commit adds a CMake based buildsystem for the tests,
it separated the subsurface sources in small libraries to
make testing easyer ( subsurface core, subsurface ui,
subsurface profile, etc. )

There's no test yet, this however produces a compiled
and executable binary *on linux*. This file shouldn't
be needed on any other platform as this is not the main
build system, but the test build system.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
First test case implemented.

This is just a stub test case to show how a test case should be
implemented. every 'private slot' on the test classes will be
automatically executed when you run 'make test' on the terminal,
and a report will be generated with a failure / success.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Add a Readme.testing file with explanations on how to use the tests.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Use a list of files instead of filtering for *.c

While filtering for *.c / *.cpp is much smaller, it has the
disvantage of getting garbage on some computers as the devs
tends to create test files around.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Add the option to specify the LIBDCDEVEL path.

Use cmake .. -DLIBDCDEVEL="../your/library" to specify
where the libdc is, or leave it blank if you have it
installed on the system. you can change the location later
by running ccmake.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>