[ save-image-and-exit ] must-fail
+[ "does/not/exist" save-image ] must-fail
+
+[
+ os windows? "C:\\windows\\hello-windows" "/usr/bin/hello-unix" ?
+ save-image
+] must-fail
+
! Tests for 'instances'
[ [ ] instances ] must-infer
2 [ [ [ 3 throw ] instances ] must-fail ] times