NODE-957 Added cursor test that shows cursor closed when batchSize < 0

Author: christkv

test/functional/cursor_tests.js

@@ -3259,3 +3259,48 @@ exports['Should correctly execute count on cursor with limit and skip'] = {
     });
   }
 }
+
+/**
+ * @ignore
+ * @api private
+ */
+exports['Should correctly handle negative batchSize and set the limit'] = {
+  // Add a tag that our runner can trigger on
+  // in this case we are setting that node needs to be higher than 0.10.X to run
+  metadata: { requires: { topology: ['single', 'replicaset', 'sharded', 'ssl', 'heap', 'wiredtiger'] } },
+
+  // The actual test we wish to run
+  test: function(configuration, test) {
+    var docs = [];
+    var Long = configuration.require.Long;
+
+    for(var i = 0; i < 50; i++) {
+      var d = new Date().getTime() + i*1000;
+      docs[i] = {'a':i, createdAt:new Date(d)};
+    }
+
+    var db = configuration.newDbInstance(configuration.writeConcernMax(), {poolSize:1});
+    db.open(function(err, db) {
+      // Create collection
+      db.createCollection('Should_correctly_execute_count_on_cursor_1_', function(err, collection) {
+        test.equal(null, err);
+
+        // insert all docs
+        collection.insert(docs, configuration.writeConcernMax(), function(err, result) {
+          test.equal(null, err);
+          var total = 0;
+
+          // Create a cursor for the content
+          var cursor = collection.find({});
+          cursor.batchSize(-10).next(function(err, doc) {
+            test.equal(null, err);
+            test.ok(cursor.cursorState.cursorId.equals(Long.ZERO));
+
+            db.close();
+            test.done();
+          });
+        })
+      });
+    });
+  }
+}