fix specs

app/models/project_import_data.rb

@@ -12,8 +12,7 @@ require 'file_size_validator'
 class ProjectImportData < ActiveRecord::Base
   belongs_to :project
-  attr_encrypted :credentials, key: Gitlab::Application.secrets.db_key_base
-  serialize :credentials, JSON
+  attr_encrypted :credentials, key: Gitlab::Application.secrets.db_key_base, marshal: true
   serialize :data, JSON

lib/gitlab/import_url_exposer.rb

@@ -14,4 +14,4 @@ module Gitlab
       credentials.values.join(":")
     end
   end
-end
\ No newline at end of file
+end

spec/factories/project_import_data.rb

+FactoryGirl.define do
+  factory :project_import_data, class: ProjectImportData do
+    data "test"
+  end
+end
\ No newline at end of file

spec/lib/gitlab/github_import/project_creator_spec.rb

@@ -12,7 +12,7 @@ describe Gitlab::GithubImport::ProjectCreator, lib: true do
       owner: OpenStruct.new(login: "john")
     )
   end
-  let(:namespace){ create(:group, owner: user) }
+  let(:namespace) { create(:group, owner: user) }
   let(:token) { "asdffg" }
   let(:access_params) { { github_access_token: token } }
@@ -27,7 +27,7 @@ describe Gitlab::GithubImport::ProjectCreator, lib: true do
     project = project_creator.execute
     expect(project.import_url).to eq("https://gitlab.com/asd/vim.git")
-    expect(project.import_data.credentials).to eq("asdffg")
+    expect(project.import_data.credentials).to eq(:github_access_token => "asdffg")
     expect(project.visibility_level).to eq(Gitlab::VisibilityLevel::PRIVATE)
   end
 end

spec/lib/gitlab/github_import/wiki_formatter_spec.rb

@@ -3,10 +3,15 @@ require 'spec_helper'
 describe Gitlab::GithubImport::WikiFormatter, lib: true do
   let(:project) do
     create(:project, namespace: create(:namespace, path: 'gitlabhq'),
-                     import_url: 'https://xxx@github.com/gitlabhq/sample.gitlabhq.git')
+           import_url: 'https://github.com/gitlabhq/sample.gitlabhq.git')
   end
-  subject(:wiki) { described_class.new(project)}
+  let!(:project_import_data) do
+    create(:project_import_data, credentials: { github_access_token: 'xxx' },
+           project: project)
+  end
+
+  subject(:wiki) { described_class.new(project) }
   describe '#path_with_namespace' do
     it 'appends .wiki to project path' do