SERVER-12127 migrate js tests to jscore suite when not related to writes

Migrate js tests starting from j-z.
Include SERVER-12920 Update use_power_of_2.js

Signed-off-by: Matt Kangas <matt.kangas@mongodb.com>

1 files changed, 60 insertions, 0 deletions

diff --git a/jstests/core/mr_merge.js b/jstests/core/mr_merge.js
new file mode 100644
index 00000000000..9350c45f773
--- /dev/null
+++ b/jstests/core/mr_merge.js
@@ -0,0 +1,60 @@
+
+t = db.mr_merge;
+t.drop();
+
+t.insert( { a : [ 1 , 2 ] } )
+t.insert( { a : [ 2 , 3 ] } )
+t.insert( { a : [ 3 , 4 ] } )
+
+outName = "mr_merge_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( { a : [ 4 , 5 ] } )
+out.insert( { _id : 10 , value : "5" } )
+res = t.mapReduce( m , r , { out : outName } )
+
+expected["4"]++;
+expected["5"] = 1
+assert.eq( tos( expected ) , tos( res.convertToSingleObject() ) , "B" );
+
+t.insert( { a : [ 5 , 6 ] } )
+out.insert( { _id : 10 , value : "5" } )
+res = t.mapReduce( m , r , { out : { merge : outName } } )
+
+expected["5"]++;
+expected["10"] = 5
+expected["6"] = 1
+
+assert.eq( tos( expected ) , tos( res.convertToSingleObject() ) , "C" );
+
+// test that the nonAtomic output gives valid result
+t.insert( { a : [ 6 , 7 ] } )
+out.insert( { _id : 20 , value : "10" } )
+res = t.mapReduce( m , r , { out : { merge : outName, nonAtomic: true } } )
+
+expected["6"]++;
+expected["20"] = 10
+expected["7"] = 1
+
+assert.eq( tos( expected ) , tos( res.convertToSingleObject() ) , "D" );
+