1 files changed, 15 insertions, 9 deletions
diff --git a/src/node/test/call_test.js b/src/node/test/call_test.js
index b37c44abaf..dfa9aaa1a7 100644
--- a/src/node/test/call_test.js
+++ b/src/node/test/call_test.js
@@ -99,25 +99,31 @@ describe('call', function() {
     });
   });
   describe('addMetadata', function() {
-    it('should succeed with objects containing keys and values', function() {
+    it('should succeed with a map from strings to string arrays', function() {
       var call = new grpc.Call(channel, 'method', getDeadline(1));
       assert.doesNotThrow(function() {
-        call.addMetadata();
+        call.addMetadata({'key': ['value']});
+      });
+      assert.doesNotThrow(function() {
+        call.addMetadata({'key1': ['value1'], 'key2': ['value2']});
       });
+    });
+    it('should succeed with a map from strings to buffer arrays', function() {
+      var call = new grpc.Call(channel, 'method', getDeadline(1));
       assert.doesNotThrow(function() {
-        call.addMetadata({'key' : 'key',
-                          'value' : new Buffer('value')});
+        call.addMetadata({'key': [new Buffer('value')]});
       });
       assert.doesNotThrow(function() {
-        call.addMetadata({'key' : 'key1',
-                          'value' : new Buffer('value1')},
-                         {'key' : 'key2',
-                          'value' : new Buffer('value2')});
+        call.addMetadata({'key1': [new Buffer('value1')],
+                          'key2': [new Buffer('value2')]});
       });
     });
     it('should fail with other parameter types', function() {
       var call = new grpc.Call(channel, 'method', getDeadline(1));
       assert.throws(function() {
+        call.addMetadata();
+      });
+      assert.throws(function() {
         call.addMetadata(null);
       }, TypeError);
       assert.throws(function() {
@@ -133,7 +139,7 @@ describe('call', function() {
                   function() {done();},
                   0);
       assert.throws(function() {
-        call.addMetadata({'key' : 'key', 'value' : new Buffer('value') });
+        call.addMetadata({'key': ['value']});
       }, function(err) {
         return err.code === grpc.callError.ALREADY_INVOKED;
       });