405 lines
14 KiB
Ruby
405 lines
14 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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describe MergeRequests::MergeService do
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set(:user) { create(:user) }
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set(:user2) { create(:user) }
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let(:merge_request) { create(:merge_request, :simple, author: user2, assignees: [user2]) }
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let(:project) { merge_request.project }
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before do
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project.add_maintainer(user)
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project.add_developer(user2)
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end
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describe '#execute' do
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let(:service) { described_class.new(project, user, merge_params) }
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let(:merge_params) do
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{ commit_message: 'Awesome message', sha: merge_request.diff_head_sha }
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end
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context 'valid params' do
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before do
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allow(service).to receive(:execute_hooks)
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perform_enqueued_jobs do
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service.execute(merge_request)
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end
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end
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it { expect(merge_request).to be_valid }
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it { expect(merge_request).to be_merged }
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it 'sends email to user2 about merge of new merge_request' do
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email = ActionMailer::Base.deliveries.last
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expect(email.to.first).to eq(user2.email)
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expect(email.subject).to include(merge_request.title)
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end
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it 'creates system note about merge_request merge' do
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note = merge_request.notes.last
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expect(note.note).to include 'merged'
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end
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context 'when squashing' do
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let(:merge_params) do
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{ commit_message: 'Merge commit message',
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squash_commit_message: 'Squash commit message',
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sha: merge_request.diff_head_sha }
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end
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let(:merge_request) do
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# A merge reqeust with 5 commits
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create(:merge_request, :simple,
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author: user2,
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assignees: [user2],
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squash: true,
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source_branch: 'improve/awesome',
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target_branch: 'fix')
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end
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it 'merges the merge request with squashed commits' do
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expect(merge_request).to be_merged
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merge_commit = merge_request.merge_commit
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squash_commit = merge_request.merge_commit.parents.last
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expect(merge_commit.message).to eq('Merge commit message')
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expect(squash_commit.message).to eq("Squash commit message\n")
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end
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end
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end
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context 'when an invalid sha is passed' do
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let(:merge_request) do
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create(:merge_request, :simple,
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author: user2,
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assignees: [user2],
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squash: true,
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source_branch: 'improve/awesome',
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target_branch: 'fix')
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end
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let(:merge_params) do
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{ sha: merge_request.commits.second.sha }
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end
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it 'does not merge the MR' do
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service.execute(merge_request)
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expect(merge_request).not_to be_merged
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expect(merge_request.merge_error).to match(/Branch has been updated/)
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end
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end
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context 'when the `sha` param is missing' do
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let(:merge_params) { {} }
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it 'returns the error' do
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merge_error = 'Branch has been updated since the merge was requested. '\
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'Please review the changes.'
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expect { service.execute(merge_request) }
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.to change { merge_request.merge_error }
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.from(nil).to(merge_error)
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end
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it 'merges the MR when the feature is disabled' do
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stub_feature_flags(validate_merge_sha: false)
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service.execute(merge_request)
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expect(merge_request).to be_merged
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end
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end
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context 'closes related issues' do
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before do
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allow(project).to receive(:default_branch).and_return(merge_request.target_branch)
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end
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it 'closes GitLab issue tracker issues' do
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issue = create :issue, project: project
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commit = double('commit', safe_message: "Fixes #{issue.to_reference}")
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allow(merge_request).to receive(:commits).and_return([commit])
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merge_request.cache_merge_request_closes_issues!
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service.execute(merge_request)
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expect(issue.reload.closed?).to be_truthy
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end
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context 'with Jira integration' do
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include JiraServiceHelper
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let(:jira_tracker) { project.create_jira_service }
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let(:jira_issue) { ExternalIssue.new('JIRA-123', project) }
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let(:commit) { double('commit', safe_message: "Fixes #{jira_issue.to_reference}") }
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before do
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project.update!(has_external_issue_tracker: true)
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jira_service_settings
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stub_jira_urls(jira_issue.id)
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allow(merge_request).to receive(:commits).and_return([commit])
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end
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it 'closes issues on Jira issue tracker' do
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jira_issue = ExternalIssue.new('JIRA-123', project)
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stub_jira_urls(jira_issue)
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commit = double('commit', safe_message: "Fixes #{jira_issue.to_reference}")
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allow(merge_request).to receive(:commits).and_return([commit])
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expect_any_instance_of(JiraService).to receive(:close_issue).with(merge_request, jira_issue).once
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service.execute(merge_request)
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end
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context 'when jira_issue_transition_id is not present' do
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before do
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allow_any_instance_of(JIRA::Resource::Issue).to receive(:resolution).and_return(nil)
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end
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it 'does not close issue' do
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allow(jira_tracker).to receive_messages(jira_issue_transition_id: nil)
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expect_any_instance_of(JiraService).not_to receive(:transition_issue)
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service.execute(merge_request)
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end
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end
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context 'wrong issue markdown' do
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it 'does not close issues on Jira issue tracker' do
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jira_issue = ExternalIssue.new('#JIRA-123', project)
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stub_jira_urls(jira_issue)
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commit = double('commit', safe_message: "Fixes #{jira_issue.to_reference}")
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allow(merge_request).to receive(:commits).and_return([commit])
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expect_any_instance_of(JiraService).not_to receive(:close_issue)
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service.execute(merge_request)
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end
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end
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end
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end
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context 'closes related todos' do
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let(:merge_request) { create(:merge_request, assignees: [user], author: user) }
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let(:project) { merge_request.project }
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let!(:todo) do
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create(:todo, :assigned,
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project: project,
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author: user,
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user: user,
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target: merge_request)
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end
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before do
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allow(service).to receive(:execute_hooks)
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perform_enqueued_jobs do
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service.execute(merge_request)
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todo.reload
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end
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end
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it { expect(todo).to be_done }
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end
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context 'source branch removal' do
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context 'when the source branch is protected' do
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let(:service) do
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described_class.new(project, user, merge_params.merge('should_remove_source_branch' => true))
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end
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before do
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create(:protected_branch, project: project, name: merge_request.source_branch)
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end
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it 'does not delete the source branch' do
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expect(DeleteBranchService).not_to receive(:new)
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service.execute(merge_request)
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end
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end
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context 'when the source branch is the default branch' do
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let(:service) do
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described_class.new(project, user, merge_params.merge('should_remove_source_branch' => true))
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end
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before do
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allow(project).to receive(:root_ref?).with(merge_request.source_branch).and_return(true)
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end
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it 'does not delete the source branch' do
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expect(DeleteBranchService).not_to receive(:new)
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service.execute(merge_request)
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end
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end
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context 'when the source branch can be removed' do
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context 'when MR author set the source branch to be removed' do
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before do
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merge_request.update_attribute(:merge_params, { 'force_remove_source_branch' => '1' })
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end
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it 'removes the source branch using the author user' do
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expect(DeleteBranchService).to receive(:new)
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.with(merge_request.source_project, merge_request.author)
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.and_call_original
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service.execute(merge_request)
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end
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context 'when the merger set the source branch not to be removed' do
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let(:service) { described_class.new(project, user, merge_params.merge('should_remove_source_branch' => false)) }
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it 'does not delete the source branch' do
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expect(DeleteBranchService).not_to receive(:new)
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service.execute(merge_request)
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end
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end
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end
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context 'when MR merger set the source branch to be removed' do
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let(:service) do
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described_class.new(project, user, merge_params.merge('should_remove_source_branch' => true))
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end
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it 'removes the source branch using the current user' do
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expect(DeleteBranchService).to receive(:new)
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.with(merge_request.source_project, user)
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.and_call_original
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service.execute(merge_request)
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end
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end
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end
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end
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context 'error handling' do
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before do
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allow(Rails.logger).to receive(:error)
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end
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context 'when source is missing' do
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it 'logs and saves error' do
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allow(merge_request).to receive(:diff_head_sha) { nil }
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error_message = 'No source for merge'
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service.execute(merge_request)
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expect(merge_request.merge_error).to eq(error_message)
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expect(Rails.logger).to have_received(:error).with(a_string_matching(error_message))
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end
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end
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it 'logs and saves error if there is an exception' do
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error_message = 'error message'
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allow(service).to receive(:repository).and_raise('error message')
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allow(service).to receive(:execute_hooks)
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service.execute(merge_request)
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expect(merge_request.merge_error).to include('Something went wrong during merge')
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expect(Rails.logger).to have_received(:error).with(a_string_matching(error_message))
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end
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it 'logs and saves error if user is not authorized' do
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unauthorized_user = create(:user)
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project.add_reporter(unauthorized_user)
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service = described_class.new(project, unauthorized_user)
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service.execute(merge_request)
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expect(merge_request.merge_error)
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.to eq('You are not allowed to merge this merge request')
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end
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it 'logs and saves error if there is an PreReceiveError exception' do
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error_message = 'error message'
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allow(service).to receive(:repository).and_raise(Gitlab::Git::PreReceiveError, "GitLab: #{error_message}")
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allow(service).to receive(:execute_hooks)
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service.execute(merge_request)
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expect(merge_request.merge_error).to include('Something went wrong during merge pre-receive hook')
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expect(Rails.logger).to have_received(:error).with(a_string_matching(error_message))
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end
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it 'logs and saves error if there is a merge conflict' do
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error_message = 'Conflicts detected during merge'
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allow_any_instance_of(Repository).to receive(:merge).and_return(false)
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allow(service).to receive(:execute_hooks)
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service.execute(merge_request)
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expect(merge_request).to be_open
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expect(merge_request.merge_commit_sha).to be_nil
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expect(merge_request.merge_error).to include(error_message)
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expect(Rails.logger).to have_received(:error).with(a_string_matching(error_message))
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end
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context 'when squashing' do
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before do
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merge_request.update!(source_branch: 'master', target_branch: 'feature')
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end
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it 'logs and saves error if there is an error when squashing' do
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error_message = 'Failed to squash. Should be done manually'
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allow_any_instance_of(MergeRequests::SquashService).to receive(:squash!).and_return(nil)
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merge_request.update(squash: true)
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service.execute(merge_request)
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expect(merge_request).to be_open
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expect(merge_request.merge_commit_sha).to be_nil
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expect(merge_request.merge_error).to include(error_message)
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expect(Rails.logger).to have_received(:error).with(a_string_matching(error_message))
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end
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it 'logs and saves error if there is a squash in progress' do
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error_message = 'another squash is already in progress'
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allow_any_instance_of(MergeRequest).to receive(:squash_in_progress?).and_return(true)
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merge_request.update(squash: true)
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service.execute(merge_request)
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expect(merge_request).to be_open
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expect(merge_request.merge_commit_sha).to be_nil
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expect(merge_request.merge_error).to include(error_message)
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expect(Rails.logger).to have_received(:error).with(a_string_matching(error_message))
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end
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context 'when fast-forward merge is not allowed' do
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before do
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allow_any_instance_of(Repository).to receive(:ancestor?).and_return(nil)
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end
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%w(semi-linear ff).each do |merge_method|
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it "logs and saves error if merge is #{merge_method} only" do
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merge_method = 'rebase_merge' if merge_method == 'semi-linear'
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merge_request.project.update(merge_method: merge_method)
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error_message = 'Only fast-forward merge is allowed for your project. Please update your source branch'
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allow(service).to receive(:execute_hooks)
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service.execute(merge_request)
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expect(merge_request).to be_open
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expect(merge_request.merge_commit_sha).to be_nil
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expect(merge_request.merge_error).to include(error_message)
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expect(Rails.logger).to have_received(:error).with(a_string_matching(error_message))
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end
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end
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end
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end
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end
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end
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end
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