require 'rails_helper'

RSpec.describe Gitlab::Gpg::InvalidGpgSignatureUpdater do
  describe '#run' do
    let!(:commit_sha) { '0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33' }
    let!(:project) { create :project, :repository, path: 'sample-project' }

    before do
      allow(Rugged::Commit).to receive(:extract_signature)
        .with(Rugged::Repository, commit_sha)
        .and_return(
          [
            GpgHelpers::User1.signed_commit_signature,
            GpgHelpers::User1.signed_commit_base_data
          ]
        )
    end

    context 'gpg signature did have an associated gpg key which was removed later' do
      let!(:user) { create :user, email: GpgHelpers::User1.emails.first }

      let!(:valid_gpg_signature) do
        create :gpg_signature,
          project: project,
          commit_sha: commit_sha,
          gpg_key: nil,
          gpg_key_primary_keyid: GpgHelpers::User1.primary_keyid,
          valid_signature: true
      end

      it 'assigns the gpg key to the signature when the missing gpg key is added' do
        # InvalidGpgSignatureUpdater is called by the after_create hook
        gpg_key = create :gpg_key,
          key: GpgHelpers::User1.public_key,
          user: user

        expect(valid_gpg_signature.reload).to have_attributes(
          project: project,
          commit_sha: commit_sha,
          gpg_key: gpg_key,
          gpg_key_primary_keyid: GpgHelpers::User1.primary_keyid,
          valid_signature: true
        )
      end

      it 'does not assign the gpg key when an unrelated gpg key is added' do
        # InvalidGpgSignatureUpdater is called by the after_create hook
        create :gpg_key,
          key: GpgHelpers::User2.public_key,
          user: user

        expect(valid_gpg_signature.reload).to have_attributes(
          project: project,
          commit_sha: commit_sha,
          gpg_key: nil,
          gpg_key_primary_keyid: GpgHelpers::User1.primary_keyid,
          valid_signature: true
        )
      end
    end

    context 'gpg signature did not have an associated gpg key' do
      let!(:user) { create :user, email: GpgHelpers::User1.emails.first }

      let!(:invalid_gpg_signature) do
        create :gpg_signature,
          project: project,
          commit_sha: commit_sha,
          gpg_key: nil,
          gpg_key_primary_keyid: GpgHelpers::User1.primary_keyid,
          valid_signature: false
      end

      it 'updates the signature to being valid when the missing gpg key is added' do
        # InvalidGpgSignatureUpdater is called by the after_create hook
        gpg_key = create :gpg_key,
          key: GpgHelpers::User1.public_key,
          user: user

        expect(invalid_gpg_signature.reload).to have_attributes(
          project: project,
          commit_sha: commit_sha,
          gpg_key: gpg_key,
          gpg_key_primary_keyid: GpgHelpers::User1.primary_keyid,
          valid_signature: true
        )
      end

      it 'keeps the signature at being invalid when an unrelated gpg key is added' do
        # InvalidGpgSignatureUpdater is called by the after_create hook
        create :gpg_key,
          key: GpgHelpers::User2.public_key,
          user: user

        expect(invalid_gpg_signature.reload).to have_attributes(
          project: project,
          commit_sha: commit_sha,
          gpg_key: nil,
          gpg_key_primary_keyid: GpgHelpers::User1.primary_keyid,
          valid_signature: false
        )
      end
    end

    context 'gpg signature did have an associated unverified gpg key' do
      let!(:user) do
        create(:user, email: 'unrelated@example.com').tap do |user|
          user.skip_reconfirmation!
        end
      end

      let!(:invalid_gpg_signature) do
        create :gpg_signature,
          project: project,
          commit_sha: commit_sha,
          gpg_key: nil,
          gpg_key_primary_keyid: GpgHelpers::User1.primary_keyid,
          valid_signature: false
      end

      it 'updates the signature to being valid when the user updates the email address' do
        gpg_key = create :gpg_key,
          key: GpgHelpers::User1.public_key,
          user: user

        expect(invalid_gpg_signature.reload.valid_signature).to be_falsey

        # InvalidGpgSignatureUpdater is called by the after_update hook
        user.update_attributes!(email: GpgHelpers::User1.emails.first)

        expect(invalid_gpg_signature.reload).to have_attributes(
          project: project,
          commit_sha: commit_sha,
          gpg_key: gpg_key,
          gpg_key_primary_keyid: GpgHelpers::User1.primary_keyid,
          valid_signature: true
        )
      end

      it 'keeps the signature at being invalid when the changed email address is still unrelated' do
        gpg_key = create :gpg_key,
          key: GpgHelpers::User1.public_key,
          user: user

        expect(invalid_gpg_signature.reload).to have_attributes(
          project: project,
          commit_sha: commit_sha,
          gpg_key: gpg_key,
          gpg_key_primary_keyid: GpgHelpers::User1.primary_keyid,
          valid_signature: false
        )

        # InvalidGpgSignatureUpdater is called by the after_update hook
        user.update_attributes!(email: 'still.unrelated@example.com')

        expect(invalid_gpg_signature.reload).to have_attributes(
          project: project,
          commit_sha: commit_sha,
          gpg_key: gpg_key,
          gpg_key_primary_keyid: GpgHelpers::User1.primary_keyid,
          valid_signature: false
        )
      end
    end
  end
end