From 45f806c7a7354592befe58a76b7e33a6d5d0fe6e Mon Sep 17 00:00:00 2001
From: "John L. Villalovos" <john@sodarock.com>
Date: Sat, 24 Apr 2021 17:12:43 -0700
Subject: [PATCH] fix: iids not working as a list in projects.issues.list()

Set the 'iids' values as type ListAttribute so it will pass the list
as a comma-separated string, instead of a list.

Add a functional test.

Closes: #1407
---
 gitlab/v4/objects/issues.py         | 2 +-
 tools/functional/api/test_issues.py | 6 +++++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/gitlab/v4/objects/issues.py b/gitlab/v4/objects/issues.py
index cdaeaba3c..c3c35d325 100644
--- a/gitlab/v4/objects/issues.py
+++ b/gitlab/v4/objects/issues.py
@@ -220,7 +220,7 @@ class ProjectIssueManager(CRUDMixin, RESTManager):
             "discussion_locked",
         ),
     )
-    _types = {"labels": types.ListAttribute}
+    _types = {"iids": types.ListAttribute, "labels": types.ListAttribute}
 
 
 class ProjectIssueLink(ObjectDeleteMixin, RESTObject):
diff --git a/tools/functional/api/test_issues.py b/tools/functional/api/test_issues.py
index ebff72b0f..6ab4b3374 100644
--- a/tools/functional/api/test_issues.py
+++ b/tools/functional/api/test_issues.py
@@ -4,7 +4,11 @@
 def test_create_issue(project):
     issue = project.issues.create({"title": "my issue 1"})
     issue2 = project.issues.create({"title": "my issue 2"})
-    assert len(project.issues.list()) == 2
+    issue_ids = [issue.id for issue in project.issues.list()]
+    assert len(issue_ids) == 2
+
+    # Test 'iids' as a list
+    assert len(project.issues.list(iids=issue_ids)) == 2
 
     issue2.state_event = "close"
     issue2.save()