1 files changed, 43 insertions, 0 deletions
diff --git a/jstests/mr_index.js b/jstests/mr_index.js
new file mode 100644
index 0000000..521d44d
--- /dev/null
+++ b/jstests/mr_index.js
@@ -0,0 +1,43 @@
+
+t = db.mr_index
+t.drop()
+
+outName = "mr_index_out"
+out = db[outName]
+out.drop()
+
+t.insert( { tags : [ 1  ] } )
+t.insert( { tags : [ 1 , 2  ] } )
+t.insert( { tags : [ 1 , 2 , 3 ] } )
+t.insert( { tags : [ 3 ] } )
+t.insert( { tags : [ 2 , 3 ] } )
+t.insert( { tags : [ 2 , 3 ] } )
+t.insert( { tags : [ 1 , 2 ] } )
+
+m = function(){ 
+    for ( i=0; i<this.tags.length; i++ )
+        emit( this.tags[i] , 1 );
+}
+
+r = function( k , vs ){
+    return Array.sum( vs );
+}
+
+ex = function(){
+    return out.find().sort( { value : 1 } ).explain()
+}
+
+res = t.mapReduce(  m , r , { out : outName } )
+    
+assert.eq( "BasicCursor" , ex().cursor , "A1" )
+out.ensureIndex( { value : 1 } )
+assert.eq( "BtreeCursor value_1" , ex().cursor , "A2" )
+assert.eq( 3 , ex().n , "A3" )
+
+res = t.mapReduce(  m , r , { out : outName } )
+    
+assert.eq( "BtreeCursor value_1" , ex().cursor , "B1" )
+assert.eq( 3 , ex().n , "B2" )
+res.drop()
+
+