create_cluster_service_spec. cluster_provision_worker_spec. cluster_queue_spec.

spec/services/ci/create_cluster_service_spec.rb

@@ -3,16 +3,44 @@ require 'spec_helper'
 describe Ci::CreateClusterService do
   describe '#execute' do
     let(:access_token) { 'xxx' }
+    let(:project) { create(:project) }
+    let(:user) { create(:user) }
+    let(:result) { described_class.new(project, user, params).execute(access_token) }
 
     context 'when correct params' do
-      it 'creates a cluster object' do
+      let(:params) do
+        {
+          gcp_project_id: 'gcp-project',
+          gcp_cluster_name: 'test-cluster',
+          gcp_cluster_zone: 'us-central1-a',
+          gcp_cluster_size: 1,
+        }
+      end
 
+      it 'creates a cluster object' do
+        expect(ClusterProvisionWorker).to receive(:perform_async)
+        expect { result }.to change { Gcp::Cluster.count }.by(1)
+        expect(result.gcp_project_id).to eq('gcp-project')
+        expect(result.gcp_cluster_name).to eq('test-cluster')
+        expect(result.gcp_cluster_zone).to eq('us-central1-a')
+        expect(result.gcp_cluster_size).to eq(1)
+        expect(result.gcp_token).to eq(access_token)
       end
     end
 
     context 'when invalid params' do
-      it 'returns an error' do
+      let(:params) do
+        {
+          gcp_project_id: 'gcp-project',
+          gcp_cluster_name: 'test-cluster',
+          gcp_cluster_zone: 'us-central1-a',
+          gcp_cluster_size: 'ABC',
+        }
+      end
 
+      it 'returns an error' do
+        expect(ClusterProvisionWorker).not_to receive(:perform_async)
+        expect { result }.to change { Gcp::Cluster.count }.by(0)
       end
     end
   end

spec/workers/cluster_provision_worker_spec.rb

+require 'spec_helper'
+
+describe ClusterProvisionWorker do
+  describe '#perform' do
+    context 'when cluster exists' do
+      let(:cluster) { create(:gcp_cluster) }
+
+      it 'provision a cluster' do
+        expect_any_instance_of(Ci::ProvisionClusterService).to receive(:execute)
+
+        described_class.new.perform(cluster.id)
+      end
+    end
+
+    context 'when cluster does not exist' do
+      it 'does not provision a cluster' do
+        expect_any_instance_of(Ci::ProvisionClusterService).not_to receive(:execute)
+
+        described_class.new.perform(123)
+      end
+    end
+  end
+end

spec/workers/concerns/cluster_queue_spec.rb

+require 'spec_helper'
+
+describe ClusterQueue do
+  let(:worker) do
+    Class.new do
+      include Sidekiq::Worker
+      include ClusterQueue
+    end
+  end
+
+  it 'sets a default pipelines queue automatically' do
+    expect(worker.sidekiq_options['queue'])
+      .to eq :gcp_cluster
+  end
+end

spec/workers/wait_for_cluster_creation_worker_spec.rb

+require 'spec_helper'
+
+describe WaitForClusterCreationWorker do
+  describe '#perform' do
+    context 'when cluster exists' do
+      let(:cluster) { create(:gcp_cluster) }
+
+      it 'fetches gcp operation status' do
+        expect_any_instance_of(Ci::FetchGcpOperationService).to receive(:execute)
+
+        described_class.new.perform(cluster.id)
+      end
+
+      # TODO: context 'when operation.status is runnning'
+    end
+
+    context 'when cluster does not exist' do
+      it 'does not provision a cluster' do
+        expect_any_instance_of(Ci::FetchGcpOperationService).to receive(:execute).with(nil)
+
+        described_class.new.perform(123)
+      end
+    end
+  end
+end