gitlab-org--gitlab-foss/spec/services/auto_merge/base_service_spec.rb

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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe AutoMerge::BaseService do
let(:project) { create(:project) }
let(:user) { create(:user) }
let(:service) { described_class.new(project, user, params) }
let(:merge_request) { create(:merge_request) }
let(:params) { {} }
describe '#execute' do
subject { service.execute(merge_request) }
before do
allow(AutoMergeProcessWorker).to receive(:perform_async) {}
end
it 'sets properies to the merge request' do
subject
merge_request.reload
expect(merge_request).to be_auto_merge_enabled
expect(merge_request.merge_user).to eq(user)
expect(merge_request.auto_merge_strategy).to eq('base')
end
it 'yields block' do
expect { |b| service.execute(merge_request, &b) }.to yield_control.once
end
it 'returns activated strategy name' do
is_expected.to eq(:base)
end
context 'when merge parameters are given' do
let(:params) do
{
'commit_message' => "Merge branch 'patch-12' into 'master'",
'sha' => "200fcc9c260f7219eaf0daba87d818f0922c5b18",
'should_remove_source_branch' => false,
'squash' => false,
'squash_commit_message' => "Update README.md"
}
end
it 'sets merge parameters' do
subject
merge_request.reload
expect(merge_request.merge_params['commit_message']).to eq("Merge branch 'patch-12' into 'master'")
expect(merge_request.merge_params['sha']).to eq('200fcc9c260f7219eaf0daba87d818f0922c5b18')
expect(merge_request.merge_params['should_remove_source_branch']).to eq(false)
expect(merge_request.squash_on_merge?).to eq(false)
expect(merge_request.merge_params['squash_commit_message']).to eq('Update README.md')
end
end
context 'when strategy is merge when pipeline succeeds' do
let(:service) { AutoMerge::MergeWhenPipelineSucceedsService.new(project, user) }
before do
pipeline = build(:ci_pipeline)
allow(merge_request).to receive(:actual_head_pipeline) { pipeline }
end
it 'sets the auto merge strategy' do
subject
merge_request.reload
expect(merge_request.auto_merge_strategy).to eq(AutoMergeService::STRATEGY_MERGE_WHEN_PIPELINE_SUCCEEDS)
end
it 'returns activated strategy name' do
is_expected.to eq(AutoMergeService::STRATEGY_MERGE_WHEN_PIPELINE_SUCCEEDS.to_sym)
end
it 'calls AutoMergeProcessWorker' do
expect(AutoMergeProcessWorker).to receive(:perform_async).with(merge_request.id).once
subject
end
end
context 'when failed to save merge request' do
before do
allow(merge_request).to receive(:save!) { raise ActiveRecord::RecordInvalid }
end
it 'does not yield block' do
expect { |b| service.execute(merge_request, &b) }.not_to yield_control
end
it 'returns failed' do
is_expected.to eq(:failed)
end
it 'tracks the exception' do
expect(Gitlab::ErrorTracking)
.to receive(:track_exception).with(kind_of(ActiveRecord::RecordInvalid),
merge_request_id: merge_request.id)
subject
end
end
context 'when exception happens in yield block' do
def execute_with_error_in_yield
service.execute(merge_request) { raise 'Something went wrong' }
end
it 'returns failed status' do
expect(execute_with_error_in_yield).to eq(:failed)
end
it 'rollback the transaction' do
execute_with_error_in_yield
merge_request.reload
expect(merge_request).not_to be_auto_merge_enabled
end
it 'tracks the exception' do
expect(Gitlab::ErrorTracking)
.to receive(:track_exception).with(kind_of(RuntimeError),
merge_request_id: merge_request.id)
execute_with_error_in_yield
end
end
end
describe '#update' do
subject { service.update(merge_request) } # rubocop:disable Rails/SaveBang
let(:merge_request) { create(:merge_request, :merge_when_pipeline_succeeds) }
context 'when merge params are specified' do
let(:params) do
{
'commit_message' => "Merge branch 'patch-12' into 'master'",
'sha' => "200fcc9c260f7219eaf0daba87d818f0922c5b18",
'should_remove_source_branch' => false,
'squash_commit_message' => "Update README.md"
}
end
it 'updates merge params' do
expect { subject }.to change {
merge_request.reload.merge_params.slice(*params.keys)
}.from({}).to(params)
end
end
end
shared_examples_for 'Canceled or Dropped' do
it 'removes properies from the merge request' do
subject
merge_request.reload
expect(merge_request).not_to be_auto_merge_enabled
expect(merge_request.merge_user).to be_nil
expect(merge_request.auto_merge_strategy).to be_nil
end
it 'yields block' do
expect { |b| service.cancel(merge_request, &b) }.to yield_control.once
end
it 'returns success status' do
expect(subject[:status]).to eq(:success)
end
context 'when merge params are set' do
before do
merge_request.update!(merge_params:
{
'should_remove_source_branch' => false,
'commit_message' => "Merge branch 'patch-12' into 'master'",
'squash_commit_message' => "Update README.md",
'auto_merge_strategy' => 'merge_when_pipeline_succeeds'
})
end
it 'removes merge parameters' do
subject
merge_request.reload
expect(merge_request.merge_params['should_remove_source_branch']).to be_nil
expect(merge_request.merge_params['commit_message']).to be_nil
expect(merge_request.merge_params['squash_commit_message']).to be_nil
expect(merge_request.merge_params['auto_merge_strategy']).to be_nil
end
end
context 'when failed to save' do
before do
allow(merge_request).to receive(:save!) { raise ActiveRecord::RecordInvalid }
end
it 'does not yield block' do
expect { |b| service.execute(merge_request, &b) }.not_to yield_control
end
end
end
describe '#cancel' do
subject { service.cancel(merge_request) }
let(:merge_request) { create(:merge_request, :merge_when_pipeline_succeeds) }
it_behaves_like 'Canceled or Dropped'
context 'when failed to save merge request' do
before do
allow(merge_request).to receive(:save!) { raise ActiveRecord::RecordInvalid }
end
it 'returns error status' do
expect(subject[:status]).to eq(:error)
expect(subject[:message]).to eq("Can't cancel the automatic merge")
end
end
context 'when exception happens in yield block' do
def cancel_with_error_in_yield
service.cancel(merge_request) { raise 'Something went wrong' }
end
it 'returns error' do
result = cancel_with_error_in_yield
expect(result[:status]).to eq(:error)
expect(result[:message]).to eq("Can't cancel the automatic merge")
end
it 'rollback the transaction' do
cancel_with_error_in_yield
merge_request.reload
expect(merge_request).to be_auto_merge_enabled
end
it 'tracks the exception' do
expect(Gitlab::ErrorTracking)
.to receive(:track_exception).with(kind_of(RuntimeError),
merge_request_id: merge_request.id)
cancel_with_error_in_yield
end
end
end
describe '#abort' do
subject { service.abort(merge_request, reason) }
let(:merge_request) { create(:merge_request, :merge_when_pipeline_succeeds) }
let(:reason) { 'an error'}
it_behaves_like 'Canceled or Dropped'
context 'when failed to save' do
before do
allow(merge_request).to receive(:save!) { raise ActiveRecord::RecordInvalid }
end
it 'returns error status' do
expect(subject[:status]).to eq(:error)
expect(subject[:message]).to eq("Can't abort the automatic merge")
end
end
context 'when exception happens in yield block' do
def abort_with_error_in_yield
service.abort(merge_request, reason) { raise 'Something went wrong' }
end
it 'returns error' do
result = abort_with_error_in_yield
expect(result[:status]).to eq(:error)
expect(result[:message]).to eq("Can't abort the automatic merge")
end
it 'rollback the transaction' do
abort_with_error_in_yield
merge_request.reload
expect(merge_request).to be_auto_merge_enabled
end
it 'tracks the exception' do
expect(Gitlab::ErrorTracking)
.to receive(:track_exception).with(kind_of(RuntimeError),
merge_request_id: merge_request.id)
abort_with_error_in_yield
end
end
end
end