debian-mirror-gitlab/spec/services/merge_requests/retarget_chain_service_spec.rb

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2021-04-17 20:07:23 +05:30
# frozen_string_literal: true
require 'spec_helper'
RSpec.describe MergeRequests::RetargetChainService do
include ProjectForksHelper
let_it_be(:user) { create(:user) }
let_it_be(:merge_request, reload: true) { create(:merge_request, assignees: [user]) }
let_it_be(:project) { merge_request.project }
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subject { described_class.new(project: project, current_user: user).execute(merge_request) }
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before do
project.add_maintainer(user)
end
describe '#execute' do
context 'when there is another MR' do
let!(:another_merge_request) do
create(:merge_request,
source_project: source_project,
source_branch: 'my-awesome-feature',
target_project: merge_request.source_project,
target_branch: merge_request.source_branch
)
end
shared_examples 'does not retarget merge request' do
it 'another merge request is unchanged' do
expect { subject }.not_to change { another_merge_request.reload.target_branch }
.from(merge_request.source_branch)
end
end
shared_examples 'retargets merge request' do
it 'another merge request is retargeted' do
expect(SystemNoteService)
.to receive(:change_branch).once
.with(another_merge_request, another_merge_request.project, user,
'target', 'delete',
merge_request.source_branch, merge_request.target_branch)
expect { subject }.to change { another_merge_request.reload.target_branch }
.from(merge_request.source_branch)
.to(merge_request.target_branch)
end
context 'when FF retarget_merge_requests is disabled' do
before do
stub_feature_flags(retarget_merge_requests: false)
end
include_examples 'does not retarget merge request'
end
end
context 'in the same project' do
let(:source_project) { project }
context 'and current is merged' do
before do
merge_request.mark_as_merged
end
it_behaves_like 'retargets merge request'
end
context 'and current is closed' do
before do
merge_request.close
end
it_behaves_like 'does not retarget merge request'
end
context 'and another is closed' do
before do
another_merge_request.close
end
it_behaves_like 'does not retarget merge request'
end
context 'and another is merged' do
before do
another_merge_request.mark_as_merged
end
it_behaves_like 'does not retarget merge request'
end
end
context 'in forked project' do
let!(:source_project) { fork_project(project) }
context 'when user has access to source project' do
before do
source_project.add_developer(user)
merge_request.mark_as_merged
end
it_behaves_like 'retargets merge request'
end
context 'when user does not have access to source project' do
it_behaves_like 'does not retarget merge request'
end
end
context 'and current and another MR is from a fork' do
let(:project) { create(:project) }
let(:source_project) { fork_project(project) }
let(:merge_request) do
create(:merge_request,
source_project: source_project,
target_project: project
)
end
before do
source_project.add_developer(user)
end
it_behaves_like 'does not retarget merge request'
end
end
context 'when many merge requests are to be retargeted' do
let!(:many_merge_requests) do
create_list(:merge_request, 10, :unique_branches,
source_project: merge_request.source_project,
target_project: merge_request.source_project,
target_branch: merge_request.source_branch
)
end
before do
merge_request.mark_as_merged
end
it 'retargets only 4 of them' do
subject
expect(many_merge_requests.each(&:reload).pluck(:target_branch).tally)
.to eq(
merge_request.source_branch => 6,
merge_request.target_branch => 4
)
end
end
end
end