Index: library/mongodb/tests/nsf-mongo.test
===================================================================
diff -u -N -rcef3de5c4f65e767d0c66389bacc77bc3c2e5a68 -ra6a6d9c14bfefba367b3147e05fbab4137f044ce
--- library/mongodb/tests/nsf-mongo.test	(.../nsf-mongo.test)	(revision cef3de5c4f65e767d0c66389bacc77bc3c2e5a68)
+++ library/mongodb/tests/nsf-mongo.test	(.../nsf-mongo.test)	(revision a6a6d9c14bfefba367b3147e05fbab4137f044ce)
@@ -162,9 +162,19 @@
 ? { llength [::mongo::collection::query $mongoColl \
 		 [list \$query document {projects document {$in array {0 string nsf 1 string gtat}}}]]} 3
 
-puts stderr "\nClose collecton $mongoColl"
-::mongo::collection::close $mongoColl
+puts stderr "\nStatistics of $mongoColl"
+puts stderr [::mongo::collection::stats $mongoColl]
+set stats [::mongo::collection::stats $mongoColl]
 
+? {expr [llength $stats] % 3 == 0} 1
+? {expr [llength $stats] > 0} 1
+
+if {[llength $stats] % 3 == 0} {
+  package req nx::mongo
+  nx::mongo::Class create C
+  puts [C bson pp $stats]
+}
+
 puts stderr "\nClose connection $mongoConn"
 ::mongo::close $mongoConn