Add feature specs for manifest import

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/controllers/import/manifest_controller.rb

 class Import::ManifestController < Import::BaseController
+  before_action :whitelist_query_limiting, only: [:create]
   before_action :verify_import_enabled
   before_action :ensure_import_vars, only: [:create, :status]
 
@@ -85,4 +86,8 @@ class Import::ManifestController < Import::BaseController
   def verify_import_enabled
     render_404 unless manifest_import_enabled?
   end
+
+  def whitelist_query_limiting
+    Gitlab::QueryLimiting.whitelist('https://gitlab.com/gitlab-org/gitlab-ce/issues/48939')
+  end
 end

lib/gitlab/import_sources.rb

@@ -17,7 +17,7 @@ module Gitlab
       ImportSource.new('git',            'Repo by URL',   nil),
       ImportSource.new('gitlab_project', 'GitLab export', Gitlab::ImportExport::Importer),
       ImportSource.new('gitea',          'Gitea',         Gitlab::LegacyGithubImport::Importer),
-      ImportSource.new('manifest',       'Manifest file', Gitlab::ManifestImport::Importer)
+      ImportSource.new('manifest',       'Manifest file', nil)
     ].freeze
 
     class << self

spec/features/import/manifest_import_spec.rb

 require 'spec_helper'
 
-feature 'Import multiple repositories by uploading a manifest file' do
+feature 'Import multiple repositories by uploading a manifest file', :js do
   include Select2Helper
 
   let(:user) { create(:admin) }
@@ -12,7 +12,7 @@ feature 'Import multiple repositories by uploading a manifest file' do
     group.add_owner(user)
   end
 
-  it 'parses manifest file and list repositories', :js do
+  it 'parses manifest file and list repositories' do
     visit new_import_manifest_path
 
     attach_file('manifest', Rails.root.join('spec/fixtures/aosp_manifest.xml'))
@@ -21,4 +21,22 @@ feature 'Import multiple repositories by uploading a manifest file' do
     expect(page).to have_button('Import all repositories')
     expect(page).to have_content('https://android-review.googlesource.com/platform/build/blueprint')
   end
+
+  it 'imports succesfully imports a project' do
+    visit new_import_manifest_path
+
+    attach_file('manifest', Rails.root.join('spec/fixtures/aosp_manifest.xml'))
+    click_on 'Continue to the next step'
+
+    page.within(first_row) do
+      click_on 'Import'
+
+      expect(page).to have_content 'Done'
+      expect(page).to have_content("#{group.full_path}/build/make")
+    end
+  end
+
+  def first_row
+    page.all('table.import-jobs tbody tr')[0]
+  end
 end