Changed ASSERT_EQ to ASSERT_TRUE/FALSE.

Signed-off-by: Lukasz Gromanowski <lgromanowski@gmail.com>
Added unittests for FileFinder::find function.

Signed-off-by: Lukasz Gromanowski <lgromanowski@gmail.com>
Added unittests for FileFinder::FileFinder class.

Signed-off-by: Lukasz Gromanowski <lgromanowski@gmail.com>
Changed test dir for SearchTest.

Signed-off-by: Lukasz Gromanowski <lgromanowski@gmail.com>