require 'spec_helper' describe MergeRequests::BuildService do using RSpec::Parameterized::TableSyntax include RepoHelpers let(:project) { create(:project, :repository) } let(:source_project) { nil } let(:target_project) { nil } let(:user) { create(:user) } let(:issue_confidential) { false } let(:issue) { create(:issue, project: project, title: 'A bug', confidential: issue_confidential) } let(:description) { nil } let(:source_branch) { 'feature-branch' } let(:target_branch) { 'master' } let(:milestone_id) { nil } let(:label_ids) { [] } let(:merge_request) { service.execute } let(:compare) { double(:compare, commits: commits) } let(:commit_1) { double(:commit_1, sha: 'f00ba7', safe_message: "Initial commit\n\nCreate the app") } let(:commit_2) { double(:commit_2, sha: 'f00ba7', safe_message: 'This is a bad commit message!') } let(:commits) { nil } let(:service) do described_class.new(project, user, description: description, source_branch: source_branch, target_branch: target_branch, source_project: source_project, target_project: target_project, milestone_id: milestone_id, label_ids: label_ids) end before do project.add_guest(user) end def stub_compare allow(CompareService).to receive_message_chain(:new, :execute).and_return(compare) allow(project).to receive(:commit).and_return(commit_1) allow(project).to receive(:commit).and_return(commit_2) end describe '#execute' do it 'calls the compare service with the correct arguments' do allow_any_instance_of(described_class).to receive(:branches_valid?).and_return(true) expect(CompareService).to receive(:new) .with(project, Gitlab::Git::BRANCH_REF_PREFIX + source_branch) .and_call_original expect_any_instance_of(CompareService).to receive(:execute) .with(project, Gitlab::Git::BRANCH_REF_PREFIX + target_branch) .and_call_original merge_request end context 'missing source branch' do let(:source_branch) { '' } it 'forbids the merge request from being created' do expect(merge_request.can_be_created).to eq(false) end it 'adds an error message to the merge request' do expect(merge_request.errors).to contain_exactly('You must select source and target branch') end end context 'when target branch is missing' do let(:target_branch) { nil } let(:commits) { Commit.decorate([commit_1], project) } before do stub_compare end it 'creates compare object with target branch as default branch' do expect(merge_request.compare).to be_present expect(merge_request.target_branch).to eq(project.default_branch) end it 'allows the merge request to be created' do expect(merge_request.can_be_created).to eq(true) end end context 'same source and target branch' do let(:source_branch) { 'master' } it 'forbids the merge request from being created' do expect(merge_request.can_be_created).to eq(false) end it 'adds an error message to the merge request' do expect(merge_request.errors).to contain_exactly('You must select different branches') end end context 'no commits in the diff' do let(:commits) { [] } before do stub_compare end it 'allows the merge request to be created' do expect(merge_request.can_be_created).to eq(true) end it 'adds a WIP prefix to the merge request title' do expect(merge_request.title).to eq('WIP: Feature branch') end end context 'one commit in the diff' do let(:commits) { Commit.decorate([commit_1], project) } let(:commit_description) { commit_1.safe_message.split(/\n+/, 2).last } before do stub_compare end it 'allows the merge request to be created' do expect(merge_request.can_be_created).to eq(true) end it 'uses the title of the commit as the title of the merge request' do expect(merge_request.title).to eq(commit_1.safe_message.split("\n").first) end it 'uses the description of the commit as the description of the merge request' do expect(merge_request.description).to eq(commit_description) end context 'merge request already has a description set' do let(:description) { 'Merge request description' } it 'keeps the description from the initial params' do expect(merge_request.description).to eq(description) end end context 'commit has no description' do let(:commits) { Commit.decorate([commit_2], project) } it 'uses the title of the commit as the title of the merge request' do expect(merge_request.title).to eq(commit_2.safe_message) end it 'sets the description to nil' do expect(merge_request.description).to be_nil end end context 'when the source branch matches an issue' do where(:issue_tracker, :source_branch, :closing_message) do :jira | 'FOO-123-fix-issue' | 'Closes FOO-123' :jira | 'fix-issue' | nil :custom_issue_tracker | '123-fix-issue' | 'Closes #123' :custom_issue_tracker | 'fix-issue' | nil :internal | '123-fix-issue' | 'Closes #123' :internal | 'fix-issue' | nil end with_them do before do if issue_tracker == :internal issue.update!(iid: 123) else create(:"#{issue_tracker}_service", project: project) end end it 'uses the title of the commit as the title of the merge request' do expect(merge_request.title).to eq('Initial commit') end it 'appends the closing description' do expected_description = [commit_description, closing_message].compact.join("\n\n") expect(merge_request.description).to eq(expected_description) end end context 'when the source branch matches an internal issue' do let(:label) { create(:label, project: project) } let(:milestone) { create(:milestone, project: project) } let(:source_branch) { '123-fix-issue' } before do issue.update!(iid: 123, labels: [label], milestone: milestone) end it 'assigns the issue label and milestone' do expect(merge_request.milestone).to eq(milestone) expect(merge_request.labels).to match_array([label]) end context 'when milestone_id and label_ids are shared in the params' do let(:label2) { create(:label, project: project) } let(:milestone2) { create(:milestone, project: project) } let(:label_ids) { [label2.id] } let(:milestone_id) { milestone2.id } it 'assigns milestone_id and label_ids instead of issue labels and milestone' do expect(merge_request.milestone).to eq(milestone2) expect(merge_request.labels).to match_array([label2]) end end end end end context 'more than one commit in the diff' do let(:commits) { Commit.decorate([commit_1, commit_2], project) } before do stub_compare end it 'allows the merge request to be created' do expect(merge_request.can_be_created).to eq(true) end it 'uses the title of the branch as the merge request title' do expect(merge_request.title).to eq('Feature branch') end it 'does not add a description' do expect(merge_request.description).to be_nil end context 'merge request already has a description set' do let(:description) { 'Merge request description' } it 'keeps the description from the initial params' do expect(merge_request.description).to eq(description) end end context 'when the source branch matches an issue' do where(:issue_tracker, :source_branch, :title, :closing_message) do :jira | 'FOO-123-fix-issue' | 'Resolve FOO-123 "Fix issue"' | 'Closes FOO-123' :jira | 'fix-issue' | 'Fix issue' | nil :custom_issue_tracker | '123-fix-issue' | 'Resolve #123 "Fix issue"' | 'Closes #123' :custom_issue_tracker | 'fix-issue' | 'Fix issue' | nil :internal | '123-fix-issue' | 'Resolve "A bug"' | 'Closes #123' :internal | 'fix-issue' | 'Fix issue' | nil :internal | '124-fix-issue' | '124 fix issue' | nil end with_them do before do if issue_tracker == :internal issue.update!(iid: 123) else create(:"#{issue_tracker}_service", project: project) end end it 'sets the correct title' do expect(merge_request.title).to eq(title) end it 'sets the closing description' do expect(merge_request.description).to eq(closing_message) end end end context 'when the issue is not accessible to user' do let(:source_branch) { "#{issue.iid}-fix-issue" } before do project.team.truncate end it 'uses branch title as the merge request title' do expect(merge_request.title).to eq("#{issue.iid} fix issue") end it 'does not set a description' do expect(merge_request.description).to be_nil end end context 'when the issue is confidential' do let(:source_branch) { "#{issue.iid}-fix-issue" } let(:issue_confidential) { true } it 'uses the title of the branch as the merge request title' do expect(merge_request.title).to eq("#{issue.iid} fix issue") end it 'does not set a description' do expect(merge_request.description).to be_nil end end end context 'source branch does not exist' do before do allow(project).to receive(:commit).with(source_branch).and_return(nil) allow(project).to receive(:commit).with(target_branch).and_return(commit_1) end it 'forbids the merge request from being created' do expect(merge_request.can_be_created).to eq(false) end it 'adds an error message to the merge request' do expect(merge_request.errors).to contain_exactly('Source branch "feature-branch" does not exist') end end context 'target branch does not exist' do before do allow(project).to receive(:commit).with(source_branch).and_return(commit_1) allow(project).to receive(:commit).with(target_branch).and_return(nil) end it 'forbids the merge request from being created' do expect(merge_request.can_be_created).to eq(false) end it 'adds an error message to the merge request' do expect(merge_request.errors).to contain_exactly('Target branch "master" does not exist') end end context 'both source and target branches do not exist' do before do allow(project).to receive(:commit).and_return(nil) end it 'forbids the merge request from being created' do expect(merge_request.can_be_created).to eq(false) end it 'adds both error messages to the merge request' do expect(merge_request.errors).to contain_exactly( 'Source branch "feature-branch" does not exist', 'Target branch "master" does not exist' ) end end context 'upstream project has disabled merge requests' do let(:upstream_project) { create(:project, :merge_requests_disabled) } let(:project) { create(:project, forked_from_project: upstream_project) } let(:commits) { Commit.decorate([commit_1], project) } it 'sets target project correctly' do expect(merge_request.target_project).to eq(project) end end context 'target_project is set and accessible by current_user' do let(:target_project) { create(:project, :public, :repository)} let(:commits) { Commit.decorate([commit_1], project) } it 'sets target project correctly' do expect(merge_request.target_project).to eq(target_project) end end context 'target_project is set but not accessible by current_user' do let(:target_project) { create(:project, :private, :repository)} let(:commits) { Commit.decorate([commit_1], project) } it 'sets target project correctly' do expect(merge_request.target_project).to eq(project) end end context 'source_project is set and accessible by current_user' do let(:source_project) { create(:project, :public, :repository)} let(:commits) { Commit.decorate([commit_1], project) } it 'sets target project correctly' do expect(merge_request.source_project).to eq(source_project) end end context 'source_project is set but not accessible by current_user' do let(:source_project) { create(:project, :private, :repository)} let(:commits) { Commit.decorate([commit_1], project) } it 'sets target project correctly' do expect(merge_request.source_project).to eq(project) end end end end