1 files changed, 27 insertions, 0 deletions
diff --git a/spec/lib/api/entities/basic_project_details_spec.rb b/spec/lib/api/entities/basic_project_details_spec.rb
new file mode 100644
index 00000000000..dc7c4fdce4e
--- /dev/null
+++ b/spec/lib/api/entities/basic_project_details_spec.rb
@@ -0,0 +1,27 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe API::Entities::BasicProjectDetails do
+  let_it_be(:project) { create(:project) }
+
+  let(:current_user) { project.owner }
+
+  subject(:output) { described_class.new(project, current_user: current_user).as_json }
+
+  describe '#default_branch' do
+    it 'delegates to Project#default_branch_or_main' do
+      expect(project).to receive(:default_branch_or_main).twice.and_call_original
+
+      expect(output).to include(default_branch: project.default_branch_or_main)
+    end
+
+    context 'anonymous user' do
+      let(:current_user) { nil }
+
+      it 'is not included' do
+        expect(output.keys).not_to include(:default_branch)
+      end
+    end
+  end
+end