1 files changed, 22 insertions, 0 deletions
diff --git a/jstests/mr_undef.js b/jstests/mr_undef.js
new file mode 100644
index 0000000..e162f99
--- /dev/null
+++ b/jstests/mr_undef.js
@@ -0,0 +1,22 @@
+
+t = db.mr_undef
+t.drop()
+
+outname = "mr_undef_out"
+out = db[outname]
+out.drop()
+
+t.insert({x : 0}) 
+
+var m = function() { emit(this.mod, this.x); } 
+var r = function(k,v) { total = 0; for(i in v) { total+= v[i]; } return total; } 
+
+res = t.mapReduce(m, r, {out : outname } )
+
+assert.eq( 0 , out.find( { _id : { $type : 6 } } ).itcount() , "A1" )
+assert.eq( 1 , out.find( { _id : { $type : 10 } } ).itcount() , "A2" )
+
+x = out.findOne()
+assert.eq( x , out.findOne( { _id : x["_id"] } ) , "A3" )
+
+