add test to verify that tags are added to results

Author: W-A-James

packages/bson-bench/test/unit/task.test.ts

@@ -215,7 +215,8 @@ describe('Task', function () {
         operation: 'deserialize',
         warmup: 1,
         iterations: 1,
-        options
+        options,
+        tags: ['test', 'test2']
       });
 
       task.result = {
@@ -231,6 +232,10 @@ describe('Task', function () {
       expect(results.info).to.haveOwnProperty('args');
     });
 
+    it('returns the tags in the info.tags field', function () {
+      expect(results.info.tags).to.deep.equal(['test', 'test2']);
+    });
+
     it('returns options provided in constructor in the info.args field', function () {
       expect(results.info.args).to.haveOwnProperty('warmup');
       expect(results.info.args).to.haveOwnProperty('iterations');