-cmp_ok($im->errstr, '=~', "format 'tiff' not supported", "check no tiff message");
+cmp_ok($im->errstr, '=~', "format 'tiff' not supported",
+ "check no tiff message");
+ok(!-e "testout/notiff.tif", "file shouldn't be created");
+
+ok(!Imager->write_multi({file=>"testout/notiff.tif"}, $im, $im),
+ "should fail to write multi tiff");
+cmp_ok($im->errstr, '=~', "format 'tiff' not supported",
+ "check no tiff message");
+ok(!-e "testout/notiff.tif", "file shouldn't be created");
+