Displays thumbnails of attached images of the issue view (#1006).

This behaviour can be turned on/off in Settings -> Display (off by default). Thumbnail size can be configured there too.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@9933 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/functional/attachments_controller_test.rb

@@ -252,12 +252,58 @@ class AttachmentsControllerTest < ActionController::TestCase
     set_tmp_attachments_directory
   end
 
-  def test_anonymous_on_private_private
+  def test_download_should_be_denied_without_permission
     get :download, :id => 7
     assert_redirected_to '/login?back_url=http%3A%2F%2Ftest.host%2Fattachments%2Fdownload%2F7'
     set_tmp_attachments_directory
   end
 
+  if convert_installed?
+    def test_thumbnail
+      Attachment.clear_thumbnails
+      @request.session[:user_id] = 2
+      with_settings :thumbnails_enabled => '1' do
+        get :thumbnail, :id => 16
+        assert_response :success
+        assert_equal 'image/png', response.content_type
+      end
+    end
+
+    def test_thumbnail_should_return_404_for_non_image_attachment
+      @request.session[:user_id] = 2
+      with_settings :thumbnails_enabled => '1' do
+        get :thumbnail, :id => 15
+        assert_response 404
+      end
+    end
+
+    def test_thumbnail_should_return_404_if_thumbnails_not_enabled
+      @request.session[:user_id] = 2
+      with_settings :thumbnails_enabled => '0' do
+        get :thumbnail, :id => 16
+        assert_response 404
+      end
+    end
+
+    def test_thumbnail_should_return_404_if_thumbnail_generation_failed
+      Attachment.any_instance.stubs(:thumbnail).returns(nil)
+      @request.session[:user_id] = 2
+      with_settings :thumbnails_enabled => '1' do
+        get :thumbnail, :id => 16
+        assert_response 404
+      end
+    end
+
+    def test_thumbnail_should_be_denied_without_permission
+      with_settings :thumbnails_enabled => '1' do
+        get :thumbnail, :id => 16
+        assert_redirected_to '/login?back_url=http%3A%2F%2Ftest.host%2Fattachments%2Fthumbnail%2F16'
+      end
+    end
+  else
+    puts '(ImageMagick convert not available)'
+  end
+
   def test_destroy_issue_attachment
     set_tmp_attachments_directory
     issue = Issue.find(3)

test/functional/issues_controller_test.rb

@@ -1155,7 +1155,33 @@ class IssuesControllerTest < ActionController::TestCase
       end
     end
   end
-  
+
+  def test_show_with_thumbnails_enabled_should_display_thumbnails
+    @request.session[:user_id] = 2
+
+    with_settings :thumbnails_enabled => '1' do
+      get :show, :id => 14
+      assert_response :success
+    end
+
+    assert_select 'div.thumbnails' do
+      assert_select 'a[href=/attachments/16/testfile.png]' do
+        assert_select 'img[src=/attachments/thumbnail/16]'
+      end
+    end
+  end
+
+  def test_show_with_thumbnails_disabled_should_not_display_thumbnails
+    @request.session[:user_id] = 2
+
+    with_settings :thumbnails_enabled => '0' do
+      get :show, :id => 14
+      assert_response :success
+    end
+
+    assert_select 'div.thumbnails', 0
+  end
+
   def test_show_with_multi_custom_field
     field = CustomField.find(1)
     field.update_attribute :multiple, true

test/integration/routing/attachments_test.rb

@@ -45,6 +45,10 @@ class RoutingAttachmentsTest < ActionController::IntegrationTest
            { :controller => 'attachments', :action => 'download', :id => '1',
              :filename => 'filename.ext' }
          )
+    assert_routing(
+           { :method => 'get', :path => "/attachments/thumbnail/1" },
+           { :controller => 'attachments', :action => 'thumbnail', :id => '1' }
+         )
     assert_routing(
            { :method => 'delete', :path => "/attachments/1" },
            { :controller => 'attachments', :action => 'destroy', :id => '1' }

test/test_helper.rb

@@ -128,6 +128,13 @@ class ActiveSupport::TestCase
     return nil
   end
 
+  def self.convert_installed?
+    bin = Redmine::Configuration['imagemagick_convert_command'] || 'convert'
+    system("#{bin} -version")
+  rescue
+    false
+  end
+
   # Returns the path to the test +vendor+ repository
   def self.repository_path(vendor)
     Rails.root.join("tmp/test/#{vendor.downcase}_repository").to_s

test/unit/attachment_test.rb

@@ -214,4 +214,28 @@ class AttachmentTest < ActiveSupport::TestCase
 
     set_tmp_attachments_directory
   end
+
+  def test_thumbnailable_should_be_true_for_images
+    assert_equal true, Attachment.new(:filename => 'test.jpg').thumbnailable?
+  end
+
+  def test_thumbnailable_should_be_true_for_non_images
+    assert_equal false, Attachment.new(:filename => 'test.txt').thumbnailable?
+  end
+
+  if convert_installed?
+    def test_thumbnail_should_generate_the_thumbnail
+      set_fixtures_attachments_directory
+      attachment = Attachment.find(16)
+      Attachment.clear_thumbnails
+
+      assert_difference "Dir.glob(File.join(Attachment.thumbnails_storage_path, '*.thumb')).size" do
+        thumbnail = attachment.thumbnail
+        assert_equal "16_8e0294de2441577c529f170b6fb8f638_100.thumb", File.basename(thumbnail)
+        assert File.exists?(thumbnail)
+      end
+    end
+  else
+    puts '(ImageMagick convert not available)'
+  end
 end