Add some specs for trigger presenter

spec/presenters/ci/trigger_presenter_spec.rb

+require 'spec_helper'
+
+describe Ci::TriggerPresenter do
+  set(:user) { create(:user) }
+  set(:project) { create(:project) }
+
+  set(:trigger) do
+    create(:ci_trigger, token: '123456789abcd', project: project)
+  end
+
+  let(:subject) do
+    described_class.new(trigger, current_user: user)
+  end
+
+  before do
+    project.add_maintainer(user)
+  end
+
+  context 'when user is not a trigger owner' do
+    describe '#token' do
+      it 'exposes only short token' do
+        expect(subject.token).not_to eq trigger.token
+        expect(subject.token).to eq '1234'
+      end
+    end
+
+    describe '#has_token_exposed?' do
+      it 'does not have token exposed' do
+        expect(subject).not_to have_token_exposed
+      end
+    end
+  end
+
+  context 'when user is a trigger owner and builds admin' do
+    before do
+      trigger.update(owner: user)
+    end
+
+    describe '#token' do
+      it 'exposes full token' do
+        expect(subject.token).to eq trigger.token
+      end
+    end
+
+    describe '#has_token_exposed?' do
+      it 'has token exposed' do
+        expect(subject).to have_token_exposed
+      end
+    end
+  end
+end