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require 'spec_helper'
describe MergeRequests::PostMergeService do
let(:user) { create(:user) }
let(:merge_request) { create(:merge_request, assignees: [user]) }
let(:project) { merge_request.project }
before do
project.add_maintainer(user)
end
describe '#execute' do
it_behaves_like 'cache counters invalidator'
it 'refreshes the number of open merge requests for a valid MR', :use_clean_rails_memory_store_caching do
# Cache the counter before the MR changed state.
project.open_merge_requests_count
merge_request.update!(state: 'merged')
service = described_class.new(project, user, {})
expect { service.execute(merge_request) }
.to change { project.open_merge_requests_count }.from(1).to(0)
end
it 'updates metrics' do
metrics = merge_request.metrics
metrics_service = double(MergeRequestMetricsService)
allow(MergeRequestMetricsService)
.to receive(:new)
.with(metrics)
.and_return(metrics_service)
expect(metrics_service).to receive(:merge)
described_class.new(project, user, {}).execute(merge_request)
end
it 'deletes non-latest diffs' do
diff_removal_service = instance_double(MergeRequests::DeleteNonLatestDiffsService, execute: nil)
expect(MergeRequests::DeleteNonLatestDiffsService)
.to receive(:new).with(merge_request)
.and_return(diff_removal_service)
described_class.new(project, user, {}).execute(merge_request)
expect(diff_removal_service).to have_received(:execute)
end
it 'marks MR as merged regardless of errors when closing issues' do
merge_request.update(target_branch: 'foo')
allow(project).to receive(:default_branch).and_return('foo')
issue = create(:issue, project: project)
allow(merge_request).to receive(:visible_closing_issues_for).and_return([issue])
allow_any_instance_of(Issues::CloseService).to receive(:execute).with(issue, commit: merge_request).and_raise
expect { described_class.new(project, user, {}).execute(merge_request) }.to raise_error
expect(merge_request.reload).to be_merged
end
end
end
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