specs for services

spec/services/exercise_service/push_external_spec.rb

@@ -0,0 +1,64 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe ExerciseService::PushExternal do
+  describe '.new' do
+    subject(:push_external) { described_class.new(zip: zip, codeharbor_link: codeharbor_link) }
+
+    let(:zip) { ProformaService::ExportTask.call(exercise: FactoryBot.build(:dummy)) }
+    let(:codeharbor_link) { FactoryBot.build(:codeharbor_link) }
+
+    it 'assigns zip' do
+      expect(push_external.instance_variable_get(:@zip)).to be zip
+    end
+
+    it 'assigns codeharbor_link' do
+      expect(push_external.instance_variable_get(:@codeharbor_link)).to be codeharbor_link
+    end
+  end
+
+  describe '#execute' do
+    subject(:push_external) { described_class.call(zip: zip, codeharbor_link: codeharbor_link) }
+
+    let(:zip) { ProformaService::ExportTask.call(exercise: FactoryBot.build(:dummy)) }
+    let(:codeharbor_link) { FactoryBot.build(:codeharbor_link) }
+    let(:status) { 200 }
+    let(:response) { '' }
+
+    before { stub_request(:post, codeharbor_link.push_url).to_return(status: status, body: response) }
+
+    it 'calls the correct url' do
+      expect(push_external).to have_requested(:post, codeharbor_link.push_url)
+    end
+
+    it 'submits the correct headers' do
+      expect(push_external).to have_requested(:post, codeharbor_link.push_url)
+        .with(headers: {content_type: 'application/zip',
+                        authorization: "Bearer #{codeharbor_link.api_key}",
+                        content_length: zip.string.length})
+    end
+
+    it 'submits the correct body' do
+      expect(push_external).to have_requested(:post, codeharbor_link.push_url)
+        .with(body: zip.string)
+    end
+
+    context 'when response status is success' do
+      it { is_expected.to be nil }
+
+      context 'when response status is 500' do
+        let(:status) { 500 }
+        let(:response) { 'an error occured' }
+
+        it { is_expected.to be response }
+      end
+    end
+
+    context 'when an error occurs' do
+      before { allow(Faraday).to receive(:new).and_raise(StandardError) }
+
+      it { is_expected.not_to be nil }
+    end
+  end
+end