WIP on sct_testing: handle exceptions without crashing
WIP on sct_testing: handle exceptions without crashing


Former-commit-id: 3be039abbe82fdb77fcee11cbf72d685dd4614b9
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox