diff --git a/frontend_tests/node_tests/people.js b/frontend_tests/node_tests/people.js
index e38f63eaef..08739262fc 100644
--- a/frontend_tests/node_tests/people.js
+++ b/frontend_tests/node_tests/people.js
@@ -556,91 +556,6 @@ initialize();
     );
 }());
 
-(function test_blueslip() {
-    var unknown_email = "alicebobfred@example.com";
-
-    global.blueslip.debug = function (msg) {
-        assert.equal(msg, 'User email operand unknown: ' + unknown_email);
-    };
-    people.id_matches_email_operand(42, unknown_email);
-
-    global.blueslip.error = function (msg) {
-        assert.equal(msg, 'Unknown email for get_user_id: ' + unknown_email);
-    };
-    people.get_user_id(unknown_email);
-
-    var person = {
-        email: 'person@example.com',
-        user_id: undefined,
-        full_name: 'Person Person',
-    };
-    people.add(person);
-
-    global.blueslip.error = function (msg) {
-        assert.equal(msg, 'No user_id found for person@example.com');
-    };
-    var user_id = people.get_user_id('person@example.com');
-    assert.equal(user_id, undefined);
-
-    global.blueslip.error = function (msg) {
-        assert.equal(msg, 'Unknown user ids: 1,2');
-    };
-    people.user_ids_string_to_emails_string('1,2');
-
-    global.blueslip.warn = function (msg) {
-        assert.equal(msg, 'Unknown emails: ' + unknown_email);
-    };
-    people.email_list_to_user_ids_string(unknown_email);
-
-    var message = {
-        type: 'private',
-        display_recipient: [],
-        sender_id: me.user_id,
-    };
-    global.blueslip.error = function (msg) {
-        assert.equal(msg, 'Empty recipient list in message');
-    };
-    people.pm_with_user_ids(message);
-    people.group_pm_with_user_ids(message);
-
-    var charles = {
-        email: 'charles@example.com',
-        user_id: 451,
-        full_name: 'Charles Dickens',
-        avatar_url: 'charles.com/foo.png',
-    };
-    var maria = {
-        email: 'athens@example.com',
-        user_id: 452,
-        full_name: 'Maria Athens',
-    };
-    people.add(charles);
-    people.add(maria);
-
-    message = {
-        type: 'private',
-        display_recipient: [
-            {id: maria.user_id},
-            {id: 42},
-            {user_id: charles.user_id},
-        ],
-        sender_id: charles.user_id,
-    };
-    global.blueslip.error = function (msg) {
-        assert.equal(msg, 'Unknown user id in message: 42');
-    };
-    var reply_to = people.pm_reply_to(message);
-    assert(reply_to.indexOf('?') > -1);
-
-    people.pm_with_user_ids = function () { return [42]; };
-    people.get_person_from_user_id = function () { return undefined; };
-    global.blueslip.error = function (msg) {
-        assert.equal(msg, 'Unknown people in message');
-    };
-    var uri = people.pm_with_url({});
-    assert.equal(uri.indexOf('unk'), uri.length - 3);
-}());
-
 (function test_initialize() {
     people.init();
 
diff --git a/frontend_tests/node_tests/people_errors.js b/frontend_tests/node_tests/people_errors.js
new file mode 100644
index 0000000000..e9a09c453d
--- /dev/null
+++ b/frontend_tests/node_tests/people_errors.js
@@ -0,0 +1,107 @@
+zrequire('people');
+
+set_global('blueslip', {});
+
+var me = {
+    email: 'me@example.com',
+    user_id: 30,
+    full_name: 'Me Myself',
+    timezone: 'US/Pacific',
+};
+
+people.init();
+people.add(me);
+people.initialize_current_user(me.user_id);
+
+(function test_blueslip() {
+    var unknown_email = "alicebobfred@example.com";
+
+    global.blueslip.debug = function (msg) {
+        assert.equal(msg, 'User email operand unknown: ' + unknown_email);
+    };
+
+    var warning;
+    global.blueslip.warn = function (w) {
+        warning = w;
+    };
+
+    people.id_matches_email_operand(42, unknown_email);
+
+    global.blueslip.error = function (msg) {
+        assert.equal(msg, 'Unknown email for get_user_id: ' + unknown_email);
+    };
+    people.get_user_id(unknown_email);
+
+    var person = {
+        email: 'person@example.com',
+        user_id: undefined,
+        full_name: 'Person Person',
+    };
+    people.add(person);
+    assert.equal(warning, 'No user_id provided for person@example.com');
+
+    global.blueslip.error = function (msg) {
+        assert.equal(msg, 'No user_id found for person@example.com');
+    };
+    var user_id = people.get_user_id('person@example.com');
+    assert.equal(user_id, undefined);
+
+    global.blueslip.error = function (msg) {
+        assert.equal(msg, 'Unknown user ids: 1,2');
+    };
+    people.user_ids_string_to_emails_string('1,2');
+
+    global.blueslip.warn = function (msg) {
+        assert.equal(msg, 'Unknown emails: ' + unknown_email);
+    };
+    people.email_list_to_user_ids_string(unknown_email);
+
+    var message = {
+        type: 'private',
+        display_recipient: [],
+        sender_id: me.user_id,
+    };
+    global.blueslip.error = function (msg) {
+        assert.equal(msg, 'Empty recipient list in message');
+    };
+    people.pm_with_user_ids(message);
+    people.group_pm_with_user_ids(message);
+
+    var charles = {
+        email: 'charles@example.com',
+        user_id: 451,
+        full_name: 'Charles Dickens',
+        avatar_url: 'charles.com/foo.png',
+    };
+    var maria = {
+        email: 'athens@example.com',
+        user_id: 452,
+        full_name: 'Maria Athens',
+    };
+    people.add(charles);
+    people.add(maria);
+
+    message = {
+        type: 'private',
+        display_recipient: [
+            {id: maria.user_id},
+            {id: 42},
+            {user_id: charles.user_id},
+        ],
+        sender_id: charles.user_id,
+    };
+    global.blueslip.error = function (msg) {
+        assert.equal(msg, 'Unknown user id in message: 42');
+    };
+    var reply_to = people.pm_reply_to(message);
+    assert(reply_to.indexOf('?') > -1);
+
+    people.pm_with_user_ids = function () { return [42]; };
+    people.get_person_from_user_id = function () { return undefined; };
+    global.blueslip.error = function (msg) {
+        assert.equal(msg, 'Unknown people in message');
+    };
+    var uri = people.pm_with_url({});
+    assert.equal(uri.indexOf('unk'), uri.length - 3);
+}());
+