1 files changed, 49 insertions, 0 deletions
diff --git a/jstests/core/mr_outreduce.js b/jstests/core/mr_outreduce.js
new file mode 100644
index 00000000000..793ec252feb
--- /dev/null
+++ b/jstests/core/mr_outreduce.js
@@ -0,0 +1,49 @@
+
+t = db.mr_outreduce;
+t.drop();
+
+t.insert( { _id : 1 , a : [ 1 , 2 ] } )
+t.insert( { _id : 2 , a : [ 2 , 3 ] } )
+t.insert( { _id : 3 , a : [ 3 , 4 ] } )
+
+outName = "mr_outreduce_out";
+out = db[outName];
+out.drop();
+
+m = function(){ for (i=0; i<this.a.length; i++ ) emit( this.a[i] , 1 ); } 
+r = function(k,vs){ return Array.sum( vs ); }
+
+function tos( o ){
+    var s = "";
+    for ( var i=0; i<100; i++ ){
+        if ( o[i] )
+            s += i + "_" + o[i] + "|"
+    }
+    return s;
+}
+
+
+res = t.mapReduce( m , r , { out : outName } )
+
+
+expected = { "1" : 1 , "2" : 2 , "3" : 2 , "4" : 1 }
+assert.eq( tos( expected ) , tos( res.convertToSingleObject() ) , "A" );
+
+t.insert( { _id : 4 , a : [ 4 , 5 ] } )
+out.insert( { _id : 10 , value : "5" } ) // this is a sentinal to make sure it wasn't killed
+res = t.mapReduce( m , r , { out : { reduce : outName } , query : { _id : { $gt : 3 } } } )
+
+expected["4"]++;
+expected["5"] = 1
+expected["10"] = 5
+assert.eq( tos( expected ) , tos( res.convertToSingleObject() ) , "B" );
+
+t.insert( { _id : 5 , a : [ 5 , 6 ] } )
+out.insert( { _id : 20 , value : "10" } ) // this is a sentinal to make sure it wasn't killed
+res = t.mapReduce( m , r , { out : { reduce : outName, nonAtomic: true } , query : { _id : { $gt : 4 } } } )
+
+expected["5"]++;
+expected["6"] = 1
+expected["20"] = 10
+assert.eq( tos( expected ) , tos( res.convertToSingleObject() ) , "C" );
+