1 files changed, 85 insertions, 0 deletions
diff --git a/spec/services/ci/provision_cluster_service_spec.rb b/spec/services/ci/provision_cluster_service_spec.rb
new file mode 100644
index 00000000000..5ce5c788314
--- /dev/null
+++ b/spec/services/ci/provision_cluster_service_spec.rb
@@ -0,0 +1,85 @@
+require 'spec_helper'
+
+describe Ci::ProvisionClusterService do
+  describe '#execute' do
+    let(:cluster) { create(:gcp_cluster) }
+    let(:operation) { spy }
+
+    shared_examples 'error' do
+      it 'sets an error to cluster object' do
+        described_class.new.execute(cluster)
+
+        expect(cluster.reload).to be_errored
+      end
+    end
+
+    context 'when suceeded to request provision' do
+      before do
+        allow_any_instance_of(GoogleApi::CloudPlatform::Client)
+          .to receive(:projects_zones_clusters_create).and_return(operation)
+      end
+
+      context 'when operation status is RUNNING' do
+        before do
+          allow(operation).to receive(:status).and_return('RUNNING')
+        end
+
+        context 'when suceeded to parse gcp operation id' do
+          before do
+            allow_any_instance_of(GoogleApi::CloudPlatform::Client)
+              .to receive(:parse_operation_id).and_return('operation-123')
+          end
+
+          context 'when cluster status is scheduled' do
+            before do
+              allow_any_instance_of(GoogleApi::CloudPlatform::Client)
+                .to receive(:parse_operation_id).and_return('operation-123')
+            end
+
+            it 'schedules a worker for status minitoring' do
+              expect(WaitForClusterCreationWorker).to receive(:perform_in)
+
+              described_class.new.execute(cluster)
+            end
+          end
+
+          context 'when cluster status is creating' do
+            before do
+              cluster.make_creating!
+            end
+
+            it_behaves_like 'error'
+          end
+        end
+
+        context 'when failed to parse gcp operation id' do
+          before do
+            allow_any_instance_of(GoogleApi::CloudPlatform::Client)
+              .to receive(:parse_operation_id).and_return(nil)
+          end
+
+          it_behaves_like 'error'
+        end
+      end
+
+      context 'when operation status is others' do
+        before do
+          allow(operation).to receive(:status).and_return('others')
+        end
+
+        it_behaves_like 'error'
+      end
+    end
+
+    context 'when failed to request provision' do
+      let(:error) { Google::Apis::ServerError.new('a') }
+
+      before do
+        allow_any_instance_of(GoogleApi::CloudPlatform::Client)
+          .to receive(:projects_zones_clusters_create).and_raise(error)
+      end
+
+      it_behaves_like 'error'
+    end
+  end
+end