require 'spec_helper'

describe Gitlab::Git::CommitterWithHooks, :seed_helper do
  # TODO https://gitlab.com/gitlab-org/gitaly/issues/1234
  skip 'needs to be moved to gitaly-ruby test suite' do
    shared_examples 'calling wiki hooks' do
      let(:project) { create(:project) }
      let(:user) { project.owner }
      let(:project_wiki) { ProjectWiki.new(project, user) }
      let(:wiki) { project_wiki.wiki }
      let(:options) do
        {
          id: user.id,
          username: user.username,
          name: user.name,
          email: user.email,
          message: 'commit message'
        }
      end

      subject { described_class.new(wiki, options) }

      before do
        project_wiki.create_page('home', 'test content')
      end

      shared_examples 'failing pre-receive hook' do
        before do
          expect_any_instance_of(Gitlab::Git::HooksService).to receive(:run_hook).with('pre-receive').and_return([false, ''])
          expect_any_instance_of(Gitlab::Git::HooksService).not_to receive(:run_hook).with('update')
          expect_any_instance_of(Gitlab::Git::HooksService).not_to receive(:run_hook).with('post-receive')
        end

        it 'raises exception' do
          expect { subject.commit }.to raise_error(Gitlab::Git::Wiki::OperationError)
        end

        it 'does not create a new commit inside the repository' do
          current_rev = find_current_rev

          expect { subject.commit }.to raise_error(Gitlab::Git::Wiki::OperationError)

          expect(current_rev).to eq find_current_rev
        end
      end

      shared_examples 'failing update hook' do
        before do
          expect_any_instance_of(Gitlab::Git::HooksService).to receive(:run_hook).with('pre-receive').and_return([true, ''])
          expect_any_instance_of(Gitlab::Git::HooksService).to receive(:run_hook).with('update').and_return([false, ''])
          expect_any_instance_of(Gitlab::Git::HooksService).not_to receive(:run_hook).with('post-receive')
        end

        it 'raises exception' do
          expect { subject.commit }.to raise_error(Gitlab::Git::Wiki::OperationError)
        end

        it 'does not create a new commit inside the repository' do
          current_rev = find_current_rev

          expect { subject.commit }.to raise_error(Gitlab::Git::Wiki::OperationError)

          expect(current_rev).to eq find_current_rev
        end
      end

      shared_examples 'failing post-receive hook' do
        before do
          expect_any_instance_of(Gitlab::Git::HooksService).to receive(:run_hook).with('pre-receive').and_return([true, ''])
          expect_any_instance_of(Gitlab::Git::HooksService).to receive(:run_hook).with('update').and_return([true, ''])
          expect_any_instance_of(Gitlab::Git::HooksService).to receive(:run_hook).with('post-receive').and_return([false, ''])
        end

        it 'does not raise exception' do
          expect { subject.commit }.not_to raise_error
        end

        it 'creates the commit' do
          current_rev = find_current_rev

          subject.commit

          expect(current_rev).not_to eq find_current_rev
        end
      end

      shared_examples 'when hooks call succceeds' do
        let(:hook) { double(:hook) }

        it 'calls the three hooks' do
          expect(Gitlab::Git::Hook).to receive(:new).exactly(3).times.and_return(hook)
          expect(hook).to receive(:trigger).exactly(3).times.and_return([true, nil])

          subject.commit
        end

        it 'creates the commit' do
          current_rev = find_current_rev

          subject.commit

          expect(current_rev).not_to eq find_current_rev
        end
      end

      context 'when creating a page' do
        before do
          project_wiki.create_page('index', 'test content')
        end

        it_behaves_like 'failing pre-receive hook'
        it_behaves_like 'failing update hook'
        it_behaves_like 'failing post-receive hook'
        it_behaves_like 'when hooks call succceeds'
      end

      context 'when updating a page' do
        before do
          project_wiki.update_page(find_page('home'), content: 'some other content', format: :markdown)
        end

        it_behaves_like 'failing pre-receive hook'
        it_behaves_like 'failing update hook'
        it_behaves_like 'failing post-receive hook'
        it_behaves_like 'when hooks call succceeds'
      end

      context 'when deleting a page' do
        before do
          project_wiki.delete_page(find_page('home'))
        end

        it_behaves_like 'failing pre-receive hook'
        it_behaves_like 'failing update hook'
        it_behaves_like 'failing post-receive hook'
        it_behaves_like 'when hooks call succceeds'
      end

      def find_current_rev
        wiki.gollum_wiki.repo.commits.first&.sha
      end

      def find_page(name)
        wiki.page(title: name)
      end
    end

    context 'when Gitaly is enabled' do
      it_behaves_like 'calling wiki hooks'
    end

    context 'when Gitaly is disabled', :disable_gitaly do
      it_behaves_like 'calling wiki hooks'
    end
  end
end