1 files changed, 84 insertions, 0 deletions
diff --git a/spec/lib/gitlab/kubernetes/kubeconfig/template_spec.rb b/spec/lib/gitlab/kubernetes/kubeconfig/template_spec.rb
new file mode 100644
index 00000000000..057c4373329
--- /dev/null
+++ b/spec/lib/gitlab/kubernetes/kubeconfig/template_spec.rb
@@ -0,0 +1,84 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Kubernetes::Kubeconfig::Template do
+  let(:template) { described_class.new }
+
+  describe '#valid?' do
+    subject { template.valid? }
+
+    it { is_expected.to be_falsey }
+
+    context 'with configuration added' do
+      before do
+        template.add_context(name: 'name', cluster: 'cluster', user: 'user')
+      end
+
+      it { is_expected.to be_truthy }
+    end
+  end
+
+  describe '#to_h' do
+    subject { described_class.new.to_h }
+
+    it do
+      is_expected.to eq(
+        apiVersion: 'v1',
+        kind: 'Config',
+        clusters: [],
+        users: [],
+        contexts: []
+      )
+    end
+  end
+
+  describe '#to_yaml' do
+    subject { template.to_yaml }
+
+    it { is_expected.to eq(YAML.dump(template.to_h.deep_stringify_keys)) }
+  end
+
+  describe 'adding entries' do
+    let(:entry) { instance_double(entry_class, to_h: attributes) }
+    let(:attributes) do
+      { name: 'name', other: 'other' }
+    end
+
+    subject { template.to_h }
+
+    before do
+      expect(entry_class).to receive(:new).with(attributes).and_return(entry)
+    end
+
+    describe '#add_cluster' do
+      let(:entry_class) { Gitlab::Kubernetes::Kubeconfig::Entry::Cluster }
+
+      before do
+        template.add_cluster(**attributes)
+      end
+
+      it { is_expected.to include(clusters: [attributes]) }
+    end
+
+    describe '#add_user' do
+      let(:entry_class) { Gitlab::Kubernetes::Kubeconfig::Entry::User }
+
+      before do
+        template.add_user(**attributes)
+      end
+
+      it { is_expected.to include(users: [attributes]) }
+    end
+
+    describe '#add_context' do
+      let(:entry_class) { Gitlab::Kubernetes::Kubeconfig::Entry::Context }
+
+      before do
+        template.add_context(**attributes)
+      end
+
+      it { is_expected.to include(contexts: [attributes]) }
+    end
+  end
+end