lib: Run gem_test_engine() in an isolated context

Ignore the shennigans of the test surrounding the library call to
gem_test_engine() and focus on answering the query of whether the engine
exists and is operational.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Tested-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
1 file changed