1 files changed, 38 insertions, 0 deletions
diff --git a/spec/finders/projects/members/effective_access_level_per_user_finder_spec.rb b/spec/finders/projects/members/effective_access_level_per_user_finder_spec.rb
new file mode 100644
index 00000000000..3872938d20e
--- /dev/null
+++ b/spec/finders/projects/members/effective_access_level_per_user_finder_spec.rb
@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+require 'spec_helper'
+
+RSpec.describe Projects::Members::EffectiveAccessLevelPerUserFinder, '#execute' do
+  let_it_be(:group) { create(:group) }
+  let_it_be(:project) { create(:project, group: group) }
+  let_it_be(:user) { create(:user) }
+
+  # The result set is being converted to json just for the ease of testing.
+  subject { described_class.new(project, user).execute.as_json }
+
+  context 'a combination of all possible avenues of membership' do
+    let_it_be(:another_user) { create(:user) }
+    let_it_be(:shared_with_group) { create(:group) }
+
+    before do
+      create(:project_group_link, :maintainer, project: project, group: shared_with_group)
+      create(:group_group_link, :reporter, shared_group: project.group, shared_with_group: shared_with_group)
+
+      shared_with_group.add_maintainer(user)
+      shared_with_group.add_maintainer(another_user)
+      group.add_guest(user)
+      group.add_guest(another_user)
+      project.add_developer(user)
+      project.add_developer(another_user)
+    end
+
+    it 'includes the highest access level from all avenues of memberships for the specific user alone' do
+      expect(subject).to eq(
+        [{
+          'user_id' => user.id,
+          'access_level' => Gitlab::Access::MAINTAINER, # From project_group_link
+          'id' => nil
+        }]
+      )
+    end
+  end
+end