From 3670b480c33350b06db54b42efa180d7ad94fd23 Mon Sep 17 00:00:00 2001
From: Cynthia Lin <cynthialin1004@gmail.com>
Date: Tue, 31 Jul 2018 16:47:47 -0700
Subject: [PATCH] node_tests: Cover a compose PM recipients typeahead corner
 case .

---
 .../node_tests/composebox_typeahead.js           | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/frontend_tests/node_tests/composebox_typeahead.js b/frontend_tests/node_tests/composebox_typeahead.js
index 0a451a3739..afbfd94d19 100644
--- a/frontend_tests/node_tests/composebox_typeahead.js
+++ b/frontend_tests/node_tests/composebox_typeahead.js
@@ -181,10 +181,6 @@ var backend = {
 global.user_groups.add(hamletcharacters);
 global.user_groups.add(backend);
 
-user_pill.get_user_ids = function () {
-    return [];
-};
-
 run_test('topics_seen_for', () => {
     topic_data.get_recent_names = (stream_id) => {
         assert.equal(stream_id, denmark_stream.stream_id);
@@ -473,6 +469,11 @@ run_test('initialize', () => {
 
     var pm_recipient_typeahead_called = false;
     $('#private_message_recipient').typeahead = function (options) {
+        var inserted_users = [];
+        user_pill.get_user_ids = function () {
+            return inserted_users;
+        };
+
         // This should match the users added at the beginning of this test file.
         var actual_value = options.source();
         var expected_value = [hamlet, othello, cordelia, lear, hamletcharacters, backend];
@@ -599,6 +600,13 @@ run_test('initialize', () => {
         assert.deepEqual(appended_names, ['King Lear']);
         assert(cleared);
 
+        inserted_users = [lear.user_id];
+        appended_names = [];
+        cleared = false;
+        options.updater(hamletcharacters, event);
+        assert.deepEqual(appended_names, []);
+        assert(cleared);
+
         pm_recipient_typeahead_called = true;
     };