Add multiple filters support to group members

Previously inherited/direct and two factor filters could not be
combined. This adds support for combining those two filters

app/finders/group_members_finder.rb

@@ -21,7 +21,7 @@ class GroupMembersFinder < UnionFinder
     group_members = group_members_list
     relations = []
 
-    return group_members if include_relations == [:direct]
+    return filter_members(group_members) if include_relations == [:direct]
 
     relations << group_members if include_relations.include?(:direct)
 

changelogs/unreleased/228675-separate-filtering-users-from-sorting-users-support-multiple-filte.yml

+---
+title: Add support for filtering direct group members by 2FA enabled/disabled
+merge_request: 48084
+author:
+type: changed

spec/finders/group_members_finder_spec.rb

@@ -129,4 +129,48 @@ RSpec.describe GroupMembersFinder, '#execute' do
     expect(result.to_a).not_to include(member_with_2fa)
     expect(result.to_a).to match_array([member1, member2])
   end
+
+  it 'returns direct members with two-factor auth if requested by owner' do
+    group.add_owner(user1)
+    group.add_maintainer(user2)
+    nested_group.add_maintainer(user3)
+    member_with_2fa = nested_group.add_maintainer(user5)
+
+    result = described_class.new(nested_group, user1, params: { two_factor: 'enabled' }).execute(include_relations: [:direct])
+
+    expect(result.to_a).to match_array([member_with_2fa])
+  end
+
+  it 'returns inherited members with two-factor auth if requested by owner' do
+    group.add_owner(user1)
+    member_with_2fa = group.add_maintainer(user5)
+    nested_group.add_maintainer(user2)
+    nested_group.add_maintainer(user3)
+
+    result = described_class.new(nested_group, user1, params: { two_factor: 'enabled' }).execute(include_relations: [:inherited])
+
+    expect(result.to_a).to match_array([member_with_2fa])
+  end
+
+  it 'returns direct members without two-factor auth if requested by owner' do
+    group.add_owner(user1)
+    group.add_maintainer(user2)
+    member3 = nested_group.add_maintainer(user3)
+    nested_group.add_maintainer(user5)
+
+    result = described_class.new(nested_group, user1, params: { two_factor: 'disabled' }).execute(include_relations: [:direct])
+
+    expect(result.to_a).to match_array([member3])
+  end
+
+  it 'returns inherited members without two-factor auth if requested by owner' do
+    member1 = group.add_owner(user1)
+    group.add_maintainer(user5)
+    nested_group.add_maintainer(user2)
+    nested_group.add_maintainer(user3)
+
+    result = described_class.new(nested_group, user1, params: { two_factor: 'disabled' }).execute(include_relations: [:inherited])
+
+    expect(result.to_a).to match_array([member1])
+  end
 end