1 files changed, 83 insertions, 0 deletions
diff --git a/jstests/core/mr2.js b/jstests/core/mr2.js
new file mode 100644
index 00000000000..c15d8abdfae
--- /dev/null
+++ b/jstests/core/mr2.js
@@ -0,0 +1,83 @@
+
+
+t = db.mr2;
+t.drop();
+
+t.save( { comments : [ { who : "a" , txt : "asdasdasd" } ,
+                       { who : "b" , txt : "asdasdasdasdasdasdas" } ] } );
+
+t.save( { comments : [ { who : "b" , txt : "asdasdasdaaa" } ,
+                       { who : "c" , txt : "asdasdasdaasdasdas" } ] } );
+
+
+
+function m(){
+    for ( var i=0; i<this.comments.length; i++ ){
+        var c = this.comments[i];
+        emit( c.who , { totalSize : c.txt.length , num : 1 } );
+    }
+}
+
+function r( who , values ){
+    var n = { totalSize : 0 , num : 0 };
+    for ( var i=0; i<values.length; i++ ){
+        n.totalSize += values[i].totalSize;
+        n.num += values[i].num;
+    }
+    return n;
+}
+
+function reformat( r ){
+    var x = {};
+    var cursor;
+    if ( r.results )
+        cursor = r.results;
+    else
+        cursor = r.find();
+    cursor.forEach( 
+        function(z){
+            x[z._id] = z.value;
+        }
+    );
+    return x;
+}
+
+function f( who , res ){
+    res.avg = res.totalSize / res.num;
+    return res;
+}
+
+res = t.mapReduce( m , r , { finalize : f , out : "mr2_out" } );
+printjson( res )
+x = reformat( res );
+assert.eq( 9 , x.a.avg , "A1" );
+assert.eq( 16 , x.b.avg , "A2" );
+assert.eq( 18 , x.c.avg , "A3" );
+res.drop();
+
+res = t.mapReduce( m , r , { finalize : f , out : { inline : 1 } } );
+printjson( res )
+x = reformat( res );
+assert.eq( 9 , x.a.avg , "B1" );
+assert.eq( 16 , x.b.avg , "B2" );
+assert.eq( 18 , x.c.avg , "B3" );
+res.drop();
+assert( ! ( "result" in res ) , "B4" )
+
+res = t.mapReduce( m , r , { finalize : f , out : "mr2_out", jsMode: true } );
+printjson( res )
+x = reformat( res );
+assert.eq( 9 , x.a.avg , "A1" );
+assert.eq( 16 , x.b.avg , "A2" );
+assert.eq( 18 , x.c.avg , "A3" );
+res.drop();
+
+res = t.mapReduce( m , r , { finalize : f , out : { inline : 5 }, jsMode: true } );
+printjson( res )
+x = reformat( res );
+assert.eq( 9 , x.a.avg , "B1" );
+assert.eq( 16 , x.b.avg , "B2" );
+assert.eq( 18 , x.c.avg , "B3" );
+res.drop();
+assert( ! ( "result" in res ) , "B4" )
+