# 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