1 files changed, 67 insertions, 1 deletions
diff --git a/spec/models/namespace_setting_spec.rb b/spec/models/namespace_setting_spec.rb
index 257d78dfa2c..c6e8d5b129c 100644
--- a/spec/models/namespace_setting_spec.rb
+++ b/spec/models/namespace_setting_spec.rb
@@ -3,5 +3,71 @@
 require 'spec_helper'
 
 RSpec.describe NamespaceSetting, type: :model do
-  it { is_expected.to belong_to(:namespace) }
+  # Relationships
+  #
+  describe "Associations" do
+    it { is_expected.to belong_to(:namespace) }
+  end
+
+  describe "validations" do
+    describe "#default_branch_name_content" do
+      let_it_be(:group) { create(:group) }
+
+      let(:namespace_settings) { group.namespace_settings }
+
+      shared_examples "doesn't return an error" do
+        it "doesn't return an error" do
+          expect(namespace_settings.valid?).to be_truthy
+          expect(namespace_settings.errors.full_messages).to be_empty
+        end
+      end
+
+      context "when not set" do
+        it_behaves_like "doesn't return an error"
+      end
+
+      context "when set" do
+        before do
+          namespace_settings.default_branch_name = "example_branch_name"
+        end
+
+        it_behaves_like "doesn't return an error"
+      end
+
+      context "when an empty string" do
+        before do
+          namespace_settings.default_branch_name = ''
+        end
+
+        it "returns an error" do
+          expect(namespace_settings.valid?).to be_falsey
+          expect(namespace_settings.errors.full_messages).not_to be_empty
+        end
+      end
+    end
+
+    describe '#allow_mfa_for_group' do
+      let(:settings) {  group.namespace_settings }
+
+      context 'group is top-level group' do
+        let(:group) { create(:group) }
+
+        it 'is valid' do
+          settings.allow_mfa_for_subgroups = false
+
+          expect(settings).to be_valid
+        end
+      end
+
+      context 'group is a subgroup' do
+        let(:group) { create(:group, parent: create(:group)) }
+
+        it 'is invalid' do
+          settings.allow_mfa_for_subgroups = false
+
+          expect(settings).to be_invalid
+        end
+      end
+    end
+  end
 end