Add config test button to running backup

app/controllers/concerns/setting_history_concern.rb

@@ -0,0 +1,28 @@
+module SettingHistoryConcern
+  extend ActiveSupport::Concern
+
+  included do
+    before_action :login_required
+    before_action :find_fluentd
+    before_action :find_backup_file, only: [:show, :reuse, :configtest]
+  end
+
+  def show
+  end
+
+  def reuse
+    @fluentd.agent.config_write @backup_file.content
+    redirect_to daemon_setting_path, flash: { success: t('messages.config_successfully_copied',  brand: fluentd_ui_brand) }
+  end
+
+  def configtest
+    @fluentd.config_file = @backup_file.file_path
+    if @fluentd.agent.dryrun
+      flash = { success: t('messages.dryrun_is_passed') }
+    else
+      flash = { danger: @fluentd.agent.log_tail(1).first }
+    end
+    after_dryrun_redirect(flash)
+  end
+
+end

app/controllers/fluentd/settings/histories_controller.rb

@@ -1,7 +1,5 @@
 class Fluentd::Settings::HistoriesController < ApplicationController
-  before_action :login_required
-  before_action :find_fluentd
-  before_action :find_backup_file, only: [:show, :reuse, :configtest]
+  include SettingHistoryConcern
 
   def index
     @backup_files = @fluentd.agent.backup_files_in_new_order.map do |file_path|
@@ -9,28 +7,14 @@ class Fluentd::Settings::HistoriesController < ApplicationController
     end
   end
 
-  def show
-  end
-
-  def reuse
-    @fluentd.agent.config_write @backup_file.content
-    redirect_to daemon_setting_path, flash: { success: t('messages.config_successfully_copied',  brand: fluentd_ui_brand) }
-  end
-
-  def configtest
-    @fluentd.config_file = @backup_file.file_path
-    if @fluentd.agent.dryrun
-      flash = { success: t('messages.dryrun_is_passed') }
-    else
-      flash = { danger: @fluentd.agent.log_tail(1).first }
-    end
-    redirect_to daemon_setting_history_path(params[:id]), flash: flash
-  end
-
   private
 
   def find_backup_file
     #Do not use BackupFile.new(params[:id]) because params[:id] can be any path.
     @backup_file = Fluentd::SettingArchive::BackupFile.find_by_file_id(@fluentd.agent.config_backup_dir, params[:id])
   end
+
+  def after_dryrun_redirect(flash)
+    redirect_to daemon_setting_history_path(params[:id]), flash: flash
+  end
 end

app/controllers/fluentd/settings/running_backup_controller.rb

@@ -1,19 +1,13 @@
 class Fluentd::Settings::RunningBackupController < ApplicationController
-  before_action :login_required
-  before_action :find_fluentd
-  before_action :find_backup_file, only: [:show, :reuse]
-
-  def show
-  end
-
-  def reuse
-    @fluentd.agent.config_write @backup_file.content
-    redirect_to daemon_setting_path, flash: { success: t('messages.config_successfully_copied',  brand: fluentd_ui_brand) }
-  end
+  include SettingHistoryConcern
 
   private
 
   def find_backup_file
     @backup_file = Fluentd::SettingArchive::BackupFile.new(@fluentd.agent.running_config_backup_file)
   end
+
+  def after_dryrun_redirect(flash)
+    redirect_to daemon_setting_running_backup_path, flash: flash
+  end
 end

app/views/fluentd/settings/running_backup/show.html.haml

@@ -1,6 +1,11 @@
-- page_title t('.page_title', label: @fluentd.label) do
-  - if @backup_file.content
-    - link_to reuse_daemon_setting_running_backup_path, method: 'post', class: "btn btn-primary pull-right" do
+- page_title t('.page_title', label: @fluentd.label)
+
+- if @backup_file.content
+  %p{class: "pull-right"}
+    = link_to configtest_daemon_setting_running_backup_path, method: 'post', class: "btn btn-default" do
+      = icon('fa-legal')
+      = t("terms.configtest")
+    = link_to reuse_daemon_setting_running_backup_path, method: 'post', class: "btn btn-primary" do
       = icon('fa-pencil')
       = t("terms.reuse")
 

config/routes.rb

@@ -73,6 +73,7 @@ Rails.application.routes.draw do
 
         resource :running_backup, only: [:show], module: :settings, controller: :running_backup do
           post "reuse", action: 'reuse', on: :member, as: 'reuse'
+          post "configtest" , action: "configtest", on: :member, as: "configtest"
         end
       end
     end

spec/features/fluentd/setting/ranning_backup_spec.rb

@@ -43,6 +43,42 @@ describe "running_backup", stub: :daemon do
         page.should have_text(I18n.t('messages.config_successfully_copied', brand: 'fluentd') )
         page.should have_text(backup_content)
       end
+
+      describe "configtest" do
+        let(:backup_content){ config }
+        let(:daemon) { build(:fluentd, variant: "fluentd_gem") } # To use fluentd_gem for real dry-run checking
+        before do
+          click_link I18n.t("terms.configtest")
+        end
+
+        context "invalid configfile" do
+          let(:config) { <<-CONFIG }
+          <source>
+            type aaaaaaaaaaaa
+          </source>
+          CONFIG
+
+          it do
+            page.should_not have_css('.alert-success')
+            page.should have_css('.alert-danger')
+            page.should have_text(%Q|Unknown input plugin 'aaaaaaaaaaaa'|)
+          end
+        end
+
+        context "valid configfile" do
+          let(:config) { <<-CONFIG }
+          <source>
+            type syslog
+            tag syslog
+          </source>
+          CONFIG
+
+          it do
+            page.should have_css('.alert-success')
+            page.should_not have_css('.alert-danger')
+          end
+        end
+      end
     end
   end
 end