Add image_service spec.

spec/controllers/projects_controller_spec.rb

@@ -3,10 +3,7 @@ require('spec_helper')
 describe ProjectsController do
   let(:project) { create(:project) }
   let(:user)    { create(:user) }
-  let(:png)     { fixture_file_upload(Rails.root + 'spec/fixtures/dk.png', 'image/png') }
   let(:jpg)     { fixture_file_upload(Rails.root + 'spec/fixtures/rails_sample.jpg', 'image/jpg') }
-  let(:gif)     { fixture_file_upload(Rails.root + 'spec/fixtures/banana_sample.gif', 'image/gif') }
-  let(:txt)     { fixture_file_upload(Rails.root + 'spec/fixtures/doc_sample.txt', 'text/plain') }
 
   describe "POST #upload_image" do
     before do

spec/services/projects/image_service_spec.rb

+require 'spec_helper'
+
+describe Projects::ImageService do
+  before(:each) { enable_observers }
+  after(:each) { disable_observers }
+  
+  describe 'Image service' do
+    before do
+      @user = create :user
+      @project = create :project, creator_id: @user.id, namespace: @user.namespace
+    end
+
+    context 'for valid gif file' do
+      before do
+        gif = fixture_file_upload(Rails.root + 'spec/fixtures/banana_sample.gif', 'image/gif')
+        @link_to_image = upload_image(@project.repository, { 'markdown_img' => gif }, "http://test.example/")
+      end
+
+      it { expect(@link_to_image).to have_key("alt") }
+      it { expect(@link_to_image).to have_key("url") }
+      it { expect(@link_to_image).to have_value("banana_sample") }
+      it { expect(@link_to_image["url"]).to match("http://test.example/uploads/#{@project.path_with_namespace}") }
+      it { expect(@link_to_image["url"]).to match("banana_sample.gif") }
+    end
+
+     context 'for valid png file' do
+      before do
+        png = fixture_file_upload(Rails.root + 'spec/fixtures/dk.png', 'image/png')
+        @link_to_image = upload_image(@project.repository, { 'markdown_img' => png }, "http://test.example/")
+      end
+
+      it { expect(@link_to_image).to have_key("alt") }
+      it { expect(@link_to_image).to have_key("url") }
+      it { expect(@link_to_image).to have_value("dk") }
+      it { expect(@link_to_image["url"]).to match("http://test.example/uploads/#{@project.path_with_namespace}") }
+      it { expect(@link_to_image["url"]).to match("dk.png") }
+    end
+
+     context 'for valid jpg file' do
+      before do
+        jpg = fixture_file_upload(Rails.root + 'spec/fixtures/rails_sample.jpg', 'image/jpg')
+        @link_to_image = upload_image(@project.repository, { 'markdown_img' => jpg }, "http://test.example/")
+      end
+
+      it { expect(@link_to_image).to have_key("alt") }
+      it { expect(@link_to_image).to have_key("url") }
+      it { expect(@link_to_image).to have_value("rails_sample") }
+      it { expect(@link_to_image["url"]).to match("http://test.example/uploads/#{@project.path_with_namespace}") }
+      it { expect(@link_to_image["url"]).to match("rails_sample.jpg") }
+    end
+
+    context 'for txt file' do
+      before do
+        txt = fixture_file_upload(Rails.root + 'spec/fixtures/doc_sample.txt', 'text/plain')
+        @link_to_image = upload_image(@project.repository, { 'markdown_img' => txt }, "http://test.example/")
+      end
+
+      it { expect(@link_to_image).to be_nil }
+    end
+  end
+
+  def upload_image(repository, params, root_url)
+    Projects::ImageService.new(repository, params, root_url).execute
+  end
+end