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Diffstat (limited to 'spec/services/merge_requests/merge_orchestration_service_spec.rb')
-rw-r--r-- | spec/services/merge_requests/merge_orchestration_service_spec.rb | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/spec/services/merge_requests/merge_orchestration_service_spec.rb b/spec/services/merge_requests/merge_orchestration_service_spec.rb new file mode 100644 index 00000000000..c50f20d7703 --- /dev/null +++ b/spec/services/merge_requests/merge_orchestration_service_spec.rb @@ -0,0 +1,116 @@ +# frozen_string_literal: true + +require 'spec_helper' + +describe MergeRequests::MergeOrchestrationService do + let_it_be(:maintainer) { create(:user) } + let(:merge_params) { { sha: merge_request.diff_head_sha } } + let(:user) { maintainer } + let(:service) { described_class.new(project, user, merge_params) } + + let!(:merge_request) do + create(:merge_request, source_project: project, source_branch: 'feature', + target_project: project, target_branch: 'master') + end + + shared_context 'fresh repository' do + let_it_be(:project) { create(:project, :repository) } + + before_all do + project.add_maintainer(maintainer) + end + end + + describe '#execute' do + subject { service.execute(merge_request) } + + include_context 'fresh repository' + + context 'when merge request is mergeable' do + context 'when merge request can be merged automatically' do + before do + create(:ci_pipeline, :detached_merge_request_pipeline, project: project, merge_request: merge_request) + merge_request.update_head_pipeline + end + + it 'schedules auto merge' do + expect_next_instance_of(AutoMergeService, project, user, merge_params) do |service| + expect(service).to receive(:execute).with(merge_request).and_call_original + end + + subject + + expect(merge_request).to be_auto_merge_enabled + expect(merge_request.auto_merge_strategy).to eq(AutoMergeService::STRATEGY_MERGE_WHEN_PIPELINE_SUCCEEDS) + expect(merge_request).not_to be_merged + end + end + + context 'when merge request cannot be merged automatically' do + it 'merges immediately', :sidekiq_inline do + expect(merge_request) + .to receive(:merge_async).with(user.id, merge_params) + .and_call_original + + subject + + merge_request.reset + expect(merge_request).to be_merged + expect(merge_request).not_to be_auto_merge_enabled + end + end + end + + context 'when merge request is not mergeable' do + before do + allow(merge_request).to receive(:mergeable_state?) { false } + end + + it 'does nothing' do + subject + + expect(merge_request).not_to be_auto_merge_enabled + expect(merge_request).not_to be_merged + end + end + end + + describe '#can_merge?' do + subject { service.can_merge?(merge_request) } + + include_context 'fresh repository' + + context 'when merge request is mergeable' do + it { is_expected.to eq(true) } + end + + context 'when merge request is not mergeable' do + before do + allow(merge_request).to receive(:mergeable_state?) { false } + end + + it { is_expected.to eq(false) } + end + end + + describe '#preferred_auto_merge_strategy' do + subject { service.preferred_auto_merge_strategy(merge_request) } + + include_context 'fresh repository' + + context 'when merge request can be merged automatically' do + before do + create(:ci_pipeline, :detached_merge_request_pipeline, project: project, merge_request: merge_request) + merge_request.update_head_pipeline + end + + it 'fetches perferred auto merge strategy' do + is_expected.to eq(AutoMergeService::STRATEGY_MERGE_WHEN_PIPELINE_SUCCEEDS) + end + end + + context 'when merge request cannot be merged automatically' do + it { is_expected.to be_nil } + end + end +end |