1 files changed, 45 insertions, 0 deletions
diff --git a/jstests/check_shard_index.js b/jstests/check_shard_index.js
new file mode 100644
index 0000000..a5a1fc1
--- /dev/null
+++ b/jstests/check_shard_index.js
@@ -0,0 +1,45 @@
+// -------------------------
+//  CHECKSHARDINGINDEX TEST UTILS
+// -------------------------
+
+f = db.jstests_shardingindex;
+f.drop();
+
+
+// -------------------------
+// Case 1: all entries filled or empty should make a valid index
+//
+
+f.drop();
+f.ensureIndex( { x: 1 , y: 1 } );
+assert.eq( 0 , f.count() , "1. initial count should be zero" );
+
+res = db.runCommand( { checkShardingIndex: "test.jstests_shardingindex" , keyPattern: {x:1, y:1} , force: true });
+assert.eq( true , res.ok, "1a" );
+
+f.save( { x: 1 , y : 1 } );
+assert.eq( 1 , f.count() , "1. count after initial insert should be 1" );
+res = db.runCommand( { checkShardingIndex: "test.jstests_shardingindex" , keyPattern: {x:1, y:1} , force: true });
+assert.eq( true , res.ok , "1b" );
+
+
+// -------------------------
+// Case 2: entry with null values would make an index unsuitable
+//
+
+f.drop();
+f.ensureIndex( { x: 1 , y: 1 } );
+assert.eq( 0 , f.count() , "2. initial count should be zero" );
+
+f.save( { x: 1 , y : 1 } );
+f.save( { x: null , y : 1 } );
+
+res = db.runCommand( { checkShardingIndex: "test.jstests_shardingindex" , keyPattern: {x:1, y:1} , force: true });
+assert.eq( true , res.ok , "2a " + tojson(res) );
+
+f.save( { y: 2 } );
+assert.eq( 3 , f.count() , "2. count after initial insert should be 3" );
+res = db.runCommand( { checkShardingIndex: "test.jstests_shardingindex" , keyPattern: {x:1, y:1} , force: true });
+assert.eq( false , res.ok , "2b " + tojson(res) );
+
+print("PASSED");