Added some more tests to increase coverage

1 files changed, 12 insertions, 0 deletions

diff --git a/src/node/test/surface_test.js b/src/node/test/surface_test.js
index 71801c38dd..8aa76fd1ef 100644
--- a/src/node/test/surface_test.js
+++ b/src/node/test/surface_test.js
@@ -365,6 +365,18 @@ describe('Echo metadata', function() {
       done();
     });
   });
+  it('properly handles duplicate values', function(done) {
+    var dup_metadata = metadata.clone();
+    dup_metadata.add('key', 'value2');
+    var call = client.unary({}, function(err, data) {assert.ifError(err); },
+                            dup_metadata);
+    call.on('metadata', function(resp_metadata) {
+      // Two arrays are equal iff their symmetric difference is empty
+      assert.deepEqual(_.xor(dup_metadata.get('key'), resp_metadata.get('key')),
+                       []);
+      done();
+    });
+  });
 });
 describe('Other conditions', function() {
   var test_service;