1 files changed, 99 insertions, 0 deletions
diff --git a/spec/workers/irker_worker_spec.rb b/spec/workers/irker_worker_spec.rb
new file mode 100644
index 00000000000..6b58c04d909
--- /dev/null
+++ b/spec/workers/irker_worker_spec.rb
@@ -0,0 +1,99 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe IrkerWorker, '#perform' do
+  let_it_be(:project) { create(:project, :repository) }
+  let_it_be(:user) { create(:user) }
+  let_it_be(:push_data) { HashWithIndifferentAccess.new(Gitlab::DataBuilder::Push.build_sample(project, user)) }
+  let_it_be(:channels) { ['irc://test.net/#test'] }
+
+  let_it_be(:server_settings) do
+    {
+      server_host: 'localhost',
+      server_port: 6659
+    }
+  end
+
+  let_it_be(:arguments) do
+    [
+      project.id,
+      channels,
+      false,
+      push_data,
+      server_settings
+    ]
+  end
+
+  let(:tcp_socket) { double('socket') }
+
+  subject(:worker) { described_class.new }
+
+  before do
+    allow(TCPSocket).to receive(:new).and_return(tcp_socket)
+    allow(tcp_socket).to receive(:puts).and_return(true)
+    allow(tcp_socket).to receive(:close).and_return(true)
+  end
+
+  context 'connection fails' do
+    before do
+      allow(TCPSocket).to receive(:new).and_raise(Errno::ECONNREFUSED.new('test'))
+    end
+
+    it { expect(subject.perform(*arguments)).to be_falsey }
+  end
+
+  context 'connection successful' do
+    it { expect(subject.perform(*arguments)).to be_truthy }
+
+    context 'new branch' do
+      it 'sends a correct message with branches url' do
+        branches_url = Gitlab::Routing.url_helpers
+          .project_branches_url(project)
+
+        push_data['before'] = '0000000000000000000000000000000000000000'
+
+        message = "has created a new branch master: #{branches_url}"
+
+        expect(tcp_socket).to receive(:puts).with(wrap_message(message))
+
+        subject.perform(*arguments)
+      end
+    end
+
+    context 'deleted branch' do
+      it 'sends a correct message' do
+        push_data['after'] = '0000000000000000000000000000000000000000'
+
+        message = "has deleted the branch master"
+
+        expect(tcp_socket).to receive(:puts).with(wrap_message(message))
+
+        subject.perform(*arguments)
+      end
+    end
+
+    context 'new commits to existing branch' do
+      it 'sends a correct message with a compare url' do
+        compare_url = Gitlab::Routing.url_helpers
+          .project_compare_url(project,
+                               from: Commit.truncate_sha(push_data[:before]),
+                               to: Commit.truncate_sha(push_data[:after]))
+
+        message = "pushed #{push_data['total_commits_count']} " \
+          "new commits to master: #{compare_url}"
+
+        expect(tcp_socket).to receive(:puts).with(wrap_message(message))
+
+        subject.perform(*arguments)
+      end
+    end
+  end
+
+  def wrap_message(text)
+    message = "[#{project.path}] #{push_data['user_name']} #{text}"
+    to_send = { to: channels, privmsg: message }
+
+    Gitlab::Json.dump(to_send)
+  end
+end