1 files changed, 34 insertions, 0 deletions
diff --git a/spec/services/protected_branches/api_service_spec.rb b/spec/services/protected_branches/api_service_spec.rb
new file mode 100644
index 00000000000..94484f5a7b9
--- /dev/null
+++ b/spec/services/protected_branches/api_service_spec.rb
@@ -0,0 +1,34 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe ProtectedBranches::ApiService do
+  let_it_be(:project) { create(:project) }
+  let_it_be(:user) { create(:user, maintainer_projects: [project]) }
+
+  it 'creates a protected branch with prefilled defaults' do
+    expect(::ProtectedBranches::CreateService).to receive(:new).with(
+      project, user, hash_including(
+                       push_access_levels_attributes: [{ access_level: Gitlab::Access::MAINTAINER }],
+                       merge_access_levels_attributes: [{ access_level: Gitlab::Access::MAINTAINER }]
+                     )
+    ).and_call_original
+
+    expect(described_class.new(project, user, { name: 'new name' }).create).to be_valid
+  end
+
+  it 'updates a protected branch without prefilled defaults' do
+    protected_branch = create(:protected_branch, project: project, allow_force_push: true)
+
+    expect(::ProtectedBranches::UpdateService).to receive(:new).with(
+      project, user, hash_including(
+                       push_access_levels_attributes: [],
+                       merge_access_levels_attributes: []
+                     )
+    ).and_call_original
+
+    expect do
+      expect(described_class.new(project, user, { name: 'new name' }).update(protected_branch)).to be_valid
+    end.not_to change { protected_branch.reload.allow_force_push }
+  end
+end