1 files changed, 84 insertions, 0 deletions
diff --git a/spec/models/clusters/kubernetes_namespace_spec.rb b/spec/models/clusters/kubernetes_namespace_spec.rb
new file mode 100644
index 00000000000..dea58fa26c7
--- /dev/null
+++ b/spec/models/clusters/kubernetes_namespace_spec.rb
@@ -0,0 +1,84 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Clusters::KubernetesNamespace, type: :model do
+  it { is_expected.to belong_to(:cluster_project) }
+  it { is_expected.to belong_to(:project) }
+  it { is_expected.to belong_to(:cluster) }
+  it { is_expected.to have_one(:platform_kubernetes) }
+
+  describe 'namespace uniqueness validation' do
+    let(:cluster_project) { create(:cluster_project) }
+
+    let(:kubernetes_namespace) do
+      build(:cluster_kubernetes_namespace,
+            cluster: cluster_project.cluster,
+            project: cluster_project.project,
+            cluster_project: cluster_project)
+    end
+
+    subject  { kubernetes_namespace }
+
+    context 'when cluster is using the namespace' do
+      before do
+        create(:cluster_kubernetes_namespace,
+               cluster: cluster_project.cluster,
+               project: cluster_project.project,
+               cluster_project: cluster_project,
+               namespace: kubernetes_namespace.namespace)
+      end
+
+      it { is_expected.not_to be_valid }
+    end
+
+    context 'when cluster is not using the namespace' do
+      it { is_expected.to be_valid }
+    end
+  end
+
+  describe '#set_namespace_and_service_account_to_default' do
+    let(:cluster) { platform.cluster }
+    let(:cluster_project) { create(:cluster_project, cluster: cluster) }
+    let(:kubernetes_namespace) do
+      create(:cluster_kubernetes_namespace,
+            cluster: cluster_project.cluster,
+            project: cluster_project.project,
+            cluster_project: cluster_project)
+    end
+
+    describe 'namespace' do
+      let(:platform) { create(:cluster_platform_kubernetes, namespace: namespace) }
+
+      subject { kubernetes_namespace.namespace }
+
+      context 'when platform has a namespace assigned' do
+        let(:namespace) { 'platform-namespace' }
+
+        it 'should copy the namespace' do
+          is_expected.to eq('platform-namespace')
+        end
+      end
+
+      context 'when platform does not have namespace assigned' do
+        let(:namespace) { nil }
+
+        it 'should set default namespace' do
+          project_slug = "#{cluster_project.project.path}-#{cluster_project.project_id}"
+
+          is_expected.to eq(project_slug)
+        end
+      end
+    end
+
+    describe 'service_account_name' do
+      let(:platform) { create(:cluster_platform_kubernetes) }
+
+      subject { kubernetes_namespace.service_account_name }
+
+      it 'should set a service account name based on namespace' do
+        is_expected.to eq("#{kubernetes_namespace.namespace}-service-account")
+      end
+    end
+  end
+end