Refactor specs for ndjson

- Make specs faster using let_it_be
- Move shared_examples to spec file
- Apply MR suggestions

ee/spec/lib/ee/gitlab/import_export/project/tree_saver_spec.rb

@@ -7,6 +7,7 @@ describe Gitlab::ImportExport::Project::TreeSaver do
   let_it_be(:group) { create(:group) }
   let_it_be(:project) { create(:project, group: group) }
   let_it_be(:issue) { create(:issue, project: project) }
+  let_it_be(:shared) { project.import_export_shared }
 
   let_it_be(:design) { create(:design, :with_file, versions_count: 2, issue: issue) }
   let_it_be(:note) { create(:diff_note_on_design, noteable: design, project: project, author: user) }
@@ -15,16 +16,72 @@ describe Gitlab::ImportExport::Project::TreeSaver do
   let_it_be(:epic) { create(:epic, group: group) }
   let_it_be(:epic_issue) { create(:epic_issue, issue: issue, epic: epic) }
 
-  let(:shared) { project.import_export_shared }
-  let(:export_path) { "#{Dir.tmpdir}/project_tree_saver_spec_ee" }
-  let(:project_tree_saver) { described_class.new(project: project, current_user: user, shared: shared) }
+  let_it_be(:export_path) { "#{Dir.tmpdir}/project_tree_saver_spec_ee" }
 
-  before do
+  after :all do
+    FileUtils.rm_rf(export_path)
+  end
+
+  shared_examples 'EE saves project tree successfully' do |ndjson_enabled|
+    include ::ImportExport::CommonUtil
+
+    let_it_be(:project_tree_saver) { described_class.new(project: project, current_user: user, shared: shared) }
+
+    let_it_be(:full_path) do
+      if ndjson_enabled
+        File.join(shared.export_path, 'tree')
+      else
+        File.join(shared.export_path, Gitlab::ImportExport.project_filename)
+      end
+    end
+
+    let_it_be(:exportable_path) { 'project' }
+
+    before_all do
+      Feature.enable(:project_export_as_ndjson) if ndjson_enabled
       project.add_maintainer(user)
+      expect(project_tree_saver.save).to be true
     end
 
-  after do
-    FileUtils.rm_rf(export_path)
+    let_it_be(:issue_json) { get_json(full_path, exportable_path, :issues, ndjson_enabled).first }
+
+    describe 'the designs json' do
+      it 'saves issue.designs correctly' do
+        expect(issue_json['designs'].size).to eq(1)
+      end
+
+      it 'saves issue.design_versions correctly' do
+        actions = issue_json['design_versions'].flat_map { |v| v['actions'] }
+
+        expect(issue_json['design_versions'].size).to eq(2)
+        issue_json['design_versions'].each do |version|
+          expect(version['author_id']).to eq(issue.author_id)
+        end
+        expect(actions.size).to eq(2)
+        actions.each do |action|
+          expect(action['design']).to be_present
+        end
+      end
+    end
+
+    context 'epics' do
+      it 'has epic_issue' do
+        expect(issue_json['epic_issue']).not_to be_empty
+        expect(issue_json['epic_issue']['id']).to eql(epic_issue.id)
+      end
+
+      it 'has epic' do
+        expect(issue_json['epic_issue']['epic']['title']).to eql(epic.title)
+      end
+
+      it 'does not have epic_id' do
+        expect(issue_json['epic_issue']['epic_id']).to be_nil
+      end
+
+      it 'does not have issue_id' do
+        expect(issue_json['epic_issue']['issue_id']).to be_nil
+      end
+    end
   end
 
   context 'with JSON' do

ee/spec/support/shared_examples/lib/ee/gitlab/import_export/project/tree_saver_shared_example.rb

-# frozen_string_literal: true
-
-RSpec.shared_examples 'EE saves project tree successfully' do |ndjson_enabled|
-  include ::ImportExport::CommonUtil
-
-  let(:full_path) do
-    project_tree_saver.save
-
-    if ndjson_enabled == true
-      File.join(shared.export_path, 'tree')
-    else
-      File.join(shared.export_path, Gitlab::ImportExport.project_filename)
-    end
-  end
-
-  let(:exportable_path) { 'project' }
-
-  before do
-    stub_feature_flags(project_export_as_ndjson: ndjson_enabled)
-  end
-
-  it 'saves successfully' do
-    expect(project_tree_saver.save).to be true
-  end
-
-  describe 'the designs json' do
-    let(:issue_json) { saved_relations(full_path, exportable_path, :issues, ndjson_enabled).first }
-
-    it 'saves issue.designs correctly' do
-      expect(issue_json['designs'].size).to eq(1)
-    end
-
-    it 'saves issue.design_versions correctly' do
-      actions = issue_json['design_versions'].flat_map { |v| v['actions'] }
-
-      expect(issue_json['design_versions'].size).to eq(2)
-      issue_json['design_versions'].each do |version|
-        expect(version['author_id']).to eq(issue.author_id)
-      end
-      expect(actions.size).to eq(2)
-      actions.each do |action|
-        expect(action['design']).to be_present
-      end
-    end
-  end
-
-  context 'epics' do
-    it 'has epic_issue' do
-      expect(saved_relations(full_path, exportable_path, :issues, ndjson_enabled).first['epic_issue']).not_to be_empty
-      expect(saved_relations(full_path, exportable_path, :issues, ndjson_enabled).first['epic_issue']['id']).to eql(epic_issue.id)
-    end
-
-    it 'has epic' do
-      expect(saved_relations(full_path, exportable_path, :issues, ndjson_enabled).first['epic_issue']['epic']['title']).to eql(epic.title)
-    end
-
-    it 'does not have epic_id' do
-      expect(saved_relations(full_path, exportable_path, :issues, ndjson_enabled).first['epic_issue']['epic_id']).to be_nil
-    end
-
-    it 'does not have issue_id' do
-      expect(saved_relations(full_path, exportable_path, :issues, ndjson_enabled).first['epic_issue']['issue_id']).to be_nil
-    end
-  end
-end

spec/features/projects/import_export/export_file_spec.rb

@@ -38,6 +38,27 @@ describe 'Import/Export - project export integration test', :js do
       sign_in(user)
     end
 
+    shared_examples 'export file without sensitive words' do
+      it 'exports a project successfully', :sidekiq_inline do
+        export_project_and_download_file(page, project)
+
+        in_directory_with_expanded_export(project) do |exit_status, tmpdir|
+          expect(exit_status).to eq(0)
+
+          project_json_path = File.join(tmpdir, 'project.json')
+          expect(File).to exist(project_json_path)
+
+          project_hash = JSON.parse(IO.read(project_json_path))
+
+          sensitive_words.each do |sensitive_word|
+            found = find_sensitive_attributes(sensitive_word, project_hash)
+
+            expect(found).to be_nil, failure_message(found.try(:key_found), found.try(:parent), sensitive_word)
+          end
+        end
+      end
+    end
+
     context "with legacy export" do
       before do
         stub_feature_flags(streaming_serializer: false)
@@ -52,6 +73,7 @@ describe 'Import/Export - project export integration test', :js do
         stub_feature_flags(streaming_serializer: true)
         stub_feature_flags(project_export_as_ndjson: false)
       end
+
       it_behaves_like "export file without sensitive words"
     end
 
@@ -61,19 +83,8 @@ describe 'Import/Export - project export integration test', :js do
         stub_feature_flags(project_export_as_ndjson: true)
       end
 
-      it 'exports a project successfully', :sidekiq_might_not_need_inline do
-        visit edit_project_path(project)
-
-        expect(page).to have_content('Export project')
-
-        find(:link, 'Export project').send_keys(:return)
-
-        visit edit_project_path(project)
-
-        expect(page).to have_content('Download export')
-
-        expect(project.export_status).to eq(:finished)
-        expect(project.export_file.path).to include('tar.gz')
+      it 'exports a project successfully', :sidekiq_inline do
+        export_project_and_download_file(page, project)
 
         in_directory_with_expanded_export(project) do |exit_status, tmpdir|
           expect(exit_status).to eq(0)
@@ -99,6 +110,22 @@ describe 'Import/Export - project export integration test', :js do
           end
         end
       end
+    end
+  end
+
+  def export_project_and_download_file(page, project)
+    visit edit_project_path(project)
+
+    expect(page).to have_content('Export project')
+
+    find(:link, 'Export project').send_keys(:return)
+
+    visit edit_project_path(project)
+
+    expect(page).to have_content('Download export')
+    expect(project.export_status).to eq(:finished)
+    expect(project.export_file.path).to include('tar.gz')
+  end
 
   def failure_message(key_found, parent, sensitive_word)
     <<-MSG
@@ -116,6 +143,4 @@ describe 'Import/Export - project export integration test', :js do
       CURRENT_SPEC: #{__FILE__}
     MSG
   end
-    end
-  end
 end

spec/lib/gitlab/import_export/json/ndjson_writer_spec.rb

@@ -5,7 +5,7 @@ require "spec_helper"
 describe Gitlab::ImportExport::JSON::NdjsonWriter do
   include ImportExport::CommonUtil
 
-  let(:path) { "#{Dir.tmpdir}/legacy_writer_spec/tree" }
+  let(:path) { "#{Dir.tmpdir}/ndjson_writer_spec/tree" }
   let(:exportable_path) { 'projects' }
 
   subject { described_class.new(path) }

spec/support/import_export/common_util.rb

@@ -26,15 +26,13 @@ module ImportExport
       "tmp/tests/gitlab-test/import_export"
     end
 
-    def saved_relations(path, exportable_path, key, ndjson_enabled)
-      if ndjson_enabled == true
+    def get_json(path, exportable_path, key, ndjson_enabled)
+      if ndjson_enabled
         json = if key == :projects
                  consume_attributes(path, exportable_path)
                else
                  consume_relations(path, exportable_path, key)
                end
-
-        json = json.first if key == :project_feature
       else
         json = project_json(path)
         json = json[key.to_s] unless key == :projects
@@ -86,11 +84,11 @@ module ImportExport
         relations << json
       end
 
-      relations.flatten
+      key == :project_feature ? relations.first : relations.flatten
     end
 
     def project_json(filename)
-      ::JSON.parse(IO.read(filename))
+      ActiveSupport::JSON.decode(IO.read(filename))
     end
   end
 end

spec/support/shared_examples/lib/gitlab/import_export/project/export_file_shared_examples.rb

-# frozen_string_literal: true
-
-RSpec.shared_examples 'export file without sensitive words' do
-  it 'exports a project successfully', :sidekiq_might_not_need_inline do
-    visit edit_project_path(project)
-
-    expect(page).to have_content('Export project')
-
-    find(:link, 'Export project').send_keys(:return)
-
-    visit edit_project_path(project)
-
-    expect(page).to have_content('Download export')
-
-    expect(project.export_status).to eq(:finished)
-    expect(project.export_file.path).to include('tar.gz')
-
-    in_directory_with_expanded_export(project) do |exit_status, tmpdir|
-      expect(exit_status).to eq(0)
-
-      project_json_path = File.join(tmpdir, 'project.json')
-      expect(File).to exist(project_json_path)
-
-      project_hash = JSON.parse(IO.read(project_json_path))
-
-      sensitive_words.each do |sensitive_word|
-        found = find_sensitive_attributes(sensitive_word, project_hash)
-
-        expect(found).to be_nil, failure_message(found.try(:key_found), found.try(:parent), sensitive_word)
-      end
-    end
-  end
-
-  def failure_message(key_found, parent, sensitive_word)
-    <<-MSG
-        Found a new sensitive word <#{key_found}>, which is part of the hash #{parent.inspect}
-
-        If you think this information shouldn't get exported, please exclude the model or attribute in IMPORT_EXPORT_CONFIG.
-
-        Otherwise, please add the exception to +safe_list+ in CURRENT_SPEC using #{sensitive_word} as the key and the
-        correspondent hash or model as the value.
-
-        Also, if the attribute is a generated unique token, please add it to RelationFactory::TOKEN_RESET_MODELS if it needs to be
-        reset (to prevent duplicate column problems while importing to the same instance).
-
-        IMPORT_EXPORT_CONFIG: #{Gitlab::ImportExport.config_file}
-        CURRENT_SPEC: #{__FILE__}
-    MSG
-  end
-end