1 files changed, 106 insertions, 0 deletions
diff --git a/spec/finders/groups/user_groups_finder_spec.rb b/spec/finders/groups/user_groups_finder_spec.rb
new file mode 100644
index 00000000000..4cce3ab72eb
--- /dev/null
+++ b/spec/finders/groups/user_groups_finder_spec.rb
@@ -0,0 +1,106 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Groups::UserGroupsFinder do
+  describe '#execute' do
+    let_it_be(:user) { create(:user) }
+    let_it_be(:guest_group) { create(:group, name: 'public guest', path: 'public-guest') }
+    let_it_be(:private_maintainer_group) { create(:group, :private, name: 'b private maintainer', path: 'b-private-maintainer') }
+    let_it_be(:public_developer_group) { create(:group, project_creation_level: nil, name: 'c public developer', path: 'c-public-developer') }
+    let_it_be(:public_maintainer_group) { create(:group, name: 'a public maintainer', path: 'a-public-maintainer') }
+
+    subject { described_class.new(current_user, target_user, arguments).execute }
+
+    let(:arguments) { {} }
+    let(:current_user) { user }
+    let(:target_user) { user }
+
+    before_all do
+      guest_group.add_guest(user)
+      private_maintainer_group.add_maintainer(user)
+      public_developer_group.add_developer(user)
+      public_maintainer_group.add_maintainer(user)
+    end
+
+    it 'returns all groups where the user is a direct member' do
+      is_expected.to match(
+        [
+          public_maintainer_group,
+          private_maintainer_group,
+          public_developer_group,
+          guest_group
+        ]
+      )
+    end
+
+    context 'when target_user is nil' do
+      let(:target_user) { nil }
+
+      it { is_expected.to be_empty }
+    end
+
+    context 'when current_user is nil' do
+      let(:current_user) { nil }
+
+      it { is_expected.to be_empty }
+    end
+
+    context 'when permission is :create_projects' do
+      let(:arguments) { { permission_scope: :create_projects } }
+
+      specify do
+        is_expected.to match(
+          [
+            public_maintainer_group,
+            private_maintainer_group,
+            public_developer_group
+          ]
+        )
+      end
+
+      context 'when paginatable_namespace_drop_down_for_project_creation feature flag is disabled' do
+        before do
+          stub_feature_flags(paginatable_namespace_drop_down_for_project_creation: false)
+        end
+
+        it 'ignores project creation scope and returns all groups where the user is a direct member' do
+          is_expected.to match(
+            [
+              public_maintainer_group,
+              private_maintainer_group,
+              public_developer_group,
+              guest_group
+            ]
+          )
+        end
+      end
+
+      context 'when search is provided' do
+        let(:arguments) { { permission_scope: :create_projects, search: 'maintainer' } }
+
+        specify do
+          is_expected.to match(
+            [
+              public_maintainer_group,
+              private_maintainer_group
+            ]
+          )
+        end
+      end
+    end
+
+    context 'when search is provided' do
+      let(:arguments) { { search: 'maintainer' } }
+
+      specify do
+        is_expected.to match(
+          [
+            public_maintainer_group,
+            private_maintainer_group
+          ]
+        )
+      end
+    end
+  end
+end