1 files changed, 48 insertions, 0 deletions
diff --git a/spec/services/namespace_settings/update_service_spec.rb b/spec/services/namespace_settings/update_service_spec.rb
new file mode 100644
index 00000000000..b588bf2034d
--- /dev/null
+++ b/spec/services/namespace_settings/update_service_spec.rb
@@ -0,0 +1,48 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe NamespaceSettings::UpdateService do
+  let(:user) { create(:user) }
+  let(:group) { create(:group) }
+  let(:settings) { {} }
+
+  subject(:service) { described_class.new(user, group, settings) }
+
+  describe "#execute" do
+    context "group has no namespace_settings" do
+      before do
+        group.namespace_settings.destroy!
+      end
+
+      it "builds out a new namespace_settings record" do
+        expect do
+          service.execute
+        end.to change { NamespaceSetting.count }.by(1)
+      end
+    end
+
+    context "group has a namespace_settings" do
+      before do
+        service.execute
+      end
+
+      it "doesn't create a new namespace_setting record" do
+        expect do
+          service.execute
+        end.not_to change { NamespaceSetting.count }
+      end
+    end
+
+    context "updating :default_branch_name" do
+      let(:example_branch_name) { "example_branch_name" }
+      let(:settings) { { default_branch_name: example_branch_name } }
+
+      it "changes settings" do
+        expect { service.execute }
+          .to change { group.namespace_settings.default_branch_name }
+          .from(nil).to(example_branch_name)
+      end
+    end
+  end
+end