1# frozen_string_literal: true
2
3require 'spec_helper'
4
5RSpec.describe Ci::ExpirePipelineCacheService do
6  let_it_be(:user) { create(:user) }
7  let_it_be(:project) { create(:project) }
8  let_it_be(:pipeline) { create(:ci_pipeline, project: project) }
9
10  subject { described_class.new }
11
12  describe '#execute' do
13    it 'invalidates Etag caching for project pipelines path' do
14      pipelines_path = "/#{project.full_path}/-/pipelines.json"
15      new_mr_pipelines_path = "/#{project.full_path}/-/merge_requests/new.json"
16      pipeline_path = "/#{project.full_path}/-/pipelines/#{pipeline.id}.json"
17      graphql_pipeline_path = "/api/graphql:pipelines/id/#{pipeline.id}"
18      graphql_pipeline_sha_path = "/api/graphql:pipelines/sha/#{pipeline.sha}"
19      graphql_project_on_demand_scan_counts_path = "/api/graphql:on_demand_scan/counts/#{project.full_path}"
20
21      expect_touched_etag_caching_paths(
22        pipelines_path,
23        new_mr_pipelines_path,
24        pipeline_path,
25        graphql_pipeline_path,
26        graphql_pipeline_sha_path,
27        graphql_project_on_demand_scan_counts_path
28      )
29
30      subject.execute(pipeline)
31    end
32
33    it 'invalidates Etag caching for merge request pipelines if pipeline runs on any commit of that source branch' do
34      merge_request = create(:merge_request, :with_detached_merge_request_pipeline)
35      project = merge_request.target_project
36
37      merge_request_pipelines_path = "/#{project.full_path}/-/merge_requests/#{merge_request.iid}/pipelines.json"
38      merge_request_widget_path = "/#{project.full_path}/-/merge_requests/#{merge_request.iid}/cached_widget.json"
39
40      expect_touched_etag_caching_paths(
41        merge_request_pipelines_path,
42        merge_request_widget_path
43      )
44
45      subject.execute(merge_request.all_pipelines.last)
46    end
47
48    it 'updates the cached status for a project' do
49      expect(Gitlab::Cache::Ci::ProjectPipelineStatus).to receive(:update_for_pipeline).with(pipeline)
50
51      subject.execute(pipeline)
52    end
53
54    context 'destroyed pipeline' do
55      let(:project_with_repo) { create(:project, :repository) }
56      let!(:pipeline_with_commit) { create(:ci_pipeline, :success, project: project_with_repo, sha: project_with_repo.commit.id) }
57
58      it 'clears the cache', :use_clean_rails_redis_caching do
59        create(:commit_status, :success, pipeline: pipeline_with_commit, ref: pipeline_with_commit.ref)
60
61        # Sanity check
62        expect(project_with_repo.pipeline_status.has_status?).to be_truthy
63
64        subject.execute(pipeline_with_commit, delete: true)
65
66        pipeline_with_commit.destroy!
67
68        # We need to reset lazy_latest_pipeline cache to simulate a new request
69        BatchLoader::Executor.clear_current
70
71        # Need to use find to avoid memoization
72        expect(Project.find(project_with_repo.id).pipeline_status.has_status?).to be_falsey
73      end
74    end
75
76    context 'when the pipeline is triggered by another pipeline' do
77      let(:source) { create(:ci_sources_pipeline, pipeline: pipeline) }
78
79      it 'updates the cache of dependent pipeline' do
80        dependent_pipeline_path = "/#{source.source_project.full_path}/-/pipelines/#{source.source_pipeline.id}.json"
81
82        expect_touched_etag_caching_paths(dependent_pipeline_path)
83
84        subject.execute(pipeline)
85      end
86    end
87
88    context 'when the pipeline triggered another pipeline' do
89      let(:build) { create(:ci_build, pipeline: pipeline) }
90      let(:source) { create(:ci_sources_pipeline, source_job: build) }
91
92      it 'updates the cache of dependent pipeline' do
93        dependent_pipeline_path = "/#{source.project.full_path}/-/pipelines/#{source.pipeline.id}.json"
94
95        expect_touched_etag_caching_paths(dependent_pipeline_path)
96
97        subject.execute(pipeline)
98      end
99    end
100
101    it 'does not do N+1 queries' do
102      subject.execute(pipeline)
103
104      control = ActiveRecord::QueryRecorder.new { subject.execute(pipeline) }
105
106      create(:ci_sources_pipeline, pipeline: pipeline)
107      create(:ci_sources_pipeline, source_job: create(:ci_build, pipeline: pipeline))
108
109      expect { subject.execute(pipeline) }.not_to exceed_query_limit(control.count)
110    end
111  end
112
113  def expect_touched_etag_caching_paths(*paths)
114    expect_next_instance_of(Gitlab::EtagCaching::Store) do |store|
115      expect(store).to receive(:touch).and_wrap_original do |m, *args|
116        expect(args).to include(*paths)
117
118        m.call(*args)
119      end
120    end
121  end
122end
123