gitlab-org--gitlab-foss/spec/models/merge_request_spec.rb
2016-05-13 17:55:42 -05:00

409 lines
13 KiB
Ruby

require 'spec_helper'
describe MergeRequest, models: true do
subject { create(:merge_request) }
describe 'associations' do
it { is_expected.to belong_to(:target_project).with_foreign_key(:target_project_id).class_name('Project') }
it { is_expected.to belong_to(:source_project).with_foreign_key(:source_project_id).class_name('Project') }
it { is_expected.to belong_to(:merge_user).class_name("User") }
it { is_expected.to have_one(:merge_request_diff).dependent(:destroy) }
end
describe 'modules' do
subject { described_class }
it { is_expected.to include_module(InternalId) }
it { is_expected.to include_module(Issuable) }
it { is_expected.to include_module(Referable) }
it { is_expected.to include_module(Sortable) }
it { is_expected.to include_module(Taskable) }
end
describe "act_as_paranoid" do
it { is_expected.to have_db_column(:deleted_at) }
it { is_expected.to have_db_index(:deleted_at) }
end
describe 'validation' do
it { is_expected.to validate_presence_of(:target_branch) }
it { is_expected.to validate_presence_of(:source_branch) }
context "Validation of merge user with Merge When Build succeeds" do
it "allows user to be nil when the feature is disabled" do
expect(subject).to be_valid
end
it "is invalid without merge user" do
subject.merge_when_build_succeeds = true
expect(subject).not_to be_valid
end
it "is valid with merge user" do
subject.merge_when_build_succeeds = true
subject.merge_user = build(:user)
expect(subject).to be_valid
end
end
end
describe 'respond to' do
it { is_expected.to respond_to(:unchecked?) }
it { is_expected.to respond_to(:can_be_merged?) }
it { is_expected.to respond_to(:cannot_be_merged?) }
it { is_expected.to respond_to(:merge_params) }
it { is_expected.to respond_to(:merge_when_build_succeeds) }
end
describe '.in_projects' do
it 'returns the merge requests for a set of projects' do
expect(described_class.in_projects(Project.all)).to eq([subject])
end
end
describe '#target_sha' do
context 'when the target branch does not exist anymore' do
let(:project) { create(:project) }
subject { create(:merge_request, source_project: project, target_project: project) }
before do
project.repository.raw_repository.delete_branch(subject.target_branch)
end
it 'returns nil' do
expect(subject.target_sha).to be_nil
end
end
end
describe '#source_sha' do
let(:last_branch_commit) { subject.source_project.repository.commit(subject.source_branch) }
context 'with diffs' do
subject { create(:merge_request, :with_diffs) }
it 'returns the sha of the source branch last commit' do
expect(subject.source_sha).to eq(last_branch_commit.sha)
end
end
context 'without diffs' do
subject { create(:merge_request, :without_diffs) }
it 'returns the sha of the source branch last commit' do
expect(subject.source_sha).to eq(last_branch_commit.sha)
end
end
context 'when the merge request is being created' do
subject { build(:merge_request, source_branch: nil, compare_commits: []) }
it 'returns nil' do
expect(subject.source_sha).to be_nil
end
end
end
describe '#to_reference' do
it 'returns a String reference to the object' do
expect(subject.to_reference).to eq "!#{subject.iid}"
end
it 'supports a cross-project reference' do
cross = double('project')
expect(subject.to_reference(cross)).to eq "#{subject.source_project.to_reference}!#{subject.iid}"
end
end
describe "#mr_and_commit_notes" do
let!(:merge_request) { create(:merge_request) }
before do
allow(merge_request).to receive(:commits) { [merge_request.source_project.repository.commit] }
create(:note, commit_id: merge_request.commits.first.id, noteable_type: 'Commit', project: merge_request.project)
create(:note, noteable: merge_request, project: merge_request.project)
end
it "should include notes for commits" do
expect(merge_request.commits).not_to be_empty
expect(merge_request.mr_and_commit_notes.count).to eq(2)
end
it "should include notes for commits from target project as well" do
create(:note, commit_id: merge_request.commits.first.id, noteable_type: 'Commit', project: merge_request.target_project)
expect(merge_request.commits).not_to be_empty
expect(merge_request.mr_and_commit_notes.count).to eq(3)
end
end
describe '#is_being_reassigned?' do
it 'returns true if the merge_request assignee has changed' do
subject.assignee = create(:user)
expect(subject.is_being_reassigned?).to be_truthy
end
it 'returns false if the merge request assignee has not changed' do
expect(subject.is_being_reassigned?).to be_falsey
end
end
describe '#for_fork?' do
it 'returns true if the merge request is for a fork' do
subject.source_project = create(:project, namespace: create(:group))
subject.target_project = create(:project, namespace: create(:group))
expect(subject.for_fork?).to be_truthy
end
it 'returns false if is not for a fork' do
expect(subject.for_fork?).to be_falsey
end
end
describe 'detection of issues to be closed' do
let(:issue0) { create :issue, project: subject.project }
let(:issue1) { create :issue, project: subject.project }
let(:commit0) { double('commit0', safe_message: "Fixes #{issue0.to_reference}") }
let(:commit1) { double('commit1', safe_message: "Fixes #{issue0.to_reference}") }
let(:commit2) { double('commit2', safe_message: "Fixes #{issue1.to_reference}") }
before do
subject.project.team << [subject.author, :developer]
allow(subject).to receive(:commits).and_return([commit0, commit1, commit2])
end
it 'accesses the set of issues that will be closed on acceptance' do
allow(subject.project).to receive(:default_branch).
and_return(subject.target_branch)
closed = subject.closes_issues
expect(closed).to include(issue0, issue1)
end
it 'only lists issues as to be closed if it targets the default branch' do
allow(subject.project).to receive(:default_branch).and_return('master')
subject.target_branch = 'something-else'
expect(subject.closes_issues).to be_empty
end
it 'detects issues mentioned in the description' do
issue2 = create(:issue, project: subject.project)
subject.description = "Closes #{issue2.to_reference}"
allow(subject.project).to receive(:default_branch).
and_return(subject.target_branch)
expect(subject.closes_issues).to include(issue2)
end
end
describe "#work_in_progress?" do
['WIP ', 'WIP:', 'WIP: ', '[WIP]', '[WIP] ', ' [WIP] WIP [WIP] WIP: WIP '].each do |wip_prefix|
it "detects the '#{wip_prefix}' prefix" do
subject.title = "#{wip_prefix}#{subject.title}"
expect(subject.work_in_progress?).to eq true
end
end
it "doesn't detect WIP for words starting with WIP" do
subject.title = "Wipwap #{subject.title}"
expect(subject.work_in_progress?).to eq false
end
it "doesn't detect WIP for words containing with WIP" do
subject.title = "WupWipwap #{subject.title}"
expect(subject.work_in_progress?).to eq false
end
it "doesn't detect WIP by default" do
expect(subject.work_in_progress?).to eq false
end
end
describe '#can_remove_source_branch?' do
let(:user) { create(:user) }
let(:user2) { create(:user) }
before do
subject.source_project.team << [user, :master]
subject.source_branch = "feature"
subject.target_branch = "master"
subject.save!
end
it "can't be removed when its a protected branch" do
allow(subject.source_project).to receive(:protected_branch?).and_return(true)
expect(subject.can_remove_source_branch?(user)).to be_falsey
end
it "cant remove a root ref" do
subject.source_branch = "master"
subject.target_branch = "feature"
expect(subject.can_remove_source_branch?(user)).to be_falsey
end
it "is unable to remove the source branch for a project the user cannot push to" do
expect(subject.can_remove_source_branch?(user2)).to be_falsey
end
it "can be removed if the last commit is the head of the source branch" do
allow(subject.source_project).to receive(:commit).and_return(subject.last_commit)
expect(subject.can_remove_source_branch?(user)).to be_truthy
end
it "cannot be removed if the last commit is not also the head of the source branch" do
expect(subject.can_remove_source_branch?(user)).to be_falsey
end
end
describe "#reset_merge_when_build_succeeds" do
let(:merge_if_green) { create :merge_request, merge_when_build_succeeds: true, merge_user: create(:user) }
it "sets the item to false" do
merge_if_green.reset_merge_when_build_succeeds
merge_if_green.reload
expect(merge_if_green.merge_when_build_succeeds).to be_falsey
end
end
describe "#hook_attrs" do
let(:attrs_hash) { subject.hook_attrs.to_h }
[:source, :target].each do |key|
describe "#{key} key" do
include_examples 'project hook data', project_key: key do
let(:data) { attrs_hash }
let(:project) { subject.send("#{key}_project") }
end
end
end
it "has all the required keys" do
expect(attrs_hash).to include(:source)
expect(attrs_hash).to include(:target)
expect(attrs_hash).to include(:last_commit)
expect(attrs_hash).to include(:work_in_progress)
end
end
describe '#diverged_commits_count' do
let(:project) { create(:project) }
let(:fork_project) { create(:project, forked_from_project: project) }
context 'when the target branch does not exist anymore' do
subject { create(:merge_request, source_project: project, target_project: project) }
before do
project.repository.raw_repository.delete_branch(subject.target_branch)
subject.reload
end
it 'does not crash' do
expect{ subject.diverged_commits_count }.not_to raise_error
end
it 'returns 0' do
expect(subject.diverged_commits_count).to eq(0)
end
end
context 'diverged on same repository' do
subject(:merge_request_with_divergence) { create(:merge_request, :diverged, source_project: project, target_project: project) }
it 'counts commits that are on target branch but not on source branch' do
expect(subject.diverged_commits_count).to eq(5)
end
end
context 'diverged on fork' do
subject(:merge_request_fork_with_divergence) { create(:merge_request, :diverged, source_project: fork_project, target_project: project) }
it 'counts commits that are on target branch but not on source branch' do
expect(subject.diverged_commits_count).to eq(5)
end
end
context 'rebased on fork' do
subject(:merge_request_rebased) { create(:merge_request, :rebased, source_project: fork_project, target_project: project) }
it 'counts commits that are on target branch but not on source branch' do
expect(subject.diverged_commits_count).to eq(0)
end
end
describe 'caching' do
before(:example) do
allow(Rails).to receive(:cache).and_return(ActiveSupport::Cache::MemoryStore.new)
end
it 'caches the output' do
expect(subject).to receive(:compute_diverged_commits_count).
once.
and_return(2)
subject.diverged_commits_count
subject.diverged_commits_count
end
it 'invalidates the cache when the source sha changes' do
expect(subject).to receive(:compute_diverged_commits_count).
twice.
and_return(2)
subject.diverged_commits_count
allow(subject).to receive(:source_sha).and_return('123abc')
subject.diverged_commits_count
end
it 'invalidates the cache when the target sha changes' do
expect(subject).to receive(:compute_diverged_commits_count).
twice.
and_return(2)
subject.diverged_commits_count
allow(subject).to receive(:target_sha).and_return('123abc')
subject.diverged_commits_count
end
end
end
it_behaves_like 'an editable mentionable' do
subject { create(:merge_request) }
let(:backref_text) { "merge request #{subject.to_reference}" }
let(:set_mentionable_text) { ->(txt){ subject.description = txt } }
end
it_behaves_like 'a Taskable' do
subject { create :merge_request, :simple }
end
describe '#ci_commit' do
describe 'when the source project exists' do
it 'returns the latest commit' do
commit = double(:commit, id: '123abc')
ci_commit = double(:ci_commit, ref: 'master')
allow(subject).to receive(:last_commit).and_return(commit)
expect(subject.source_project).to receive(:ci_commit).
with('123abc', 'master').
and_return(ci_commit)
expect(subject.ci_commit).to eq(ci_commit)
end
end
describe 'when the source project does not exist' do
it 'returns nil' do
allow(subject).to receive(:source_project).and_return(nil)
expect(subject.ci_commit).to be_nil
end
end
end
end