debian-mirror-gitlab/spec/controllers/projects/merge_requests/diffs_controller_spec.rb
2021-06-21 23:55:49 +05:30

620 lines
18 KiB
Ruby

# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Projects::MergeRequests::DiffsController do
include ProjectForksHelper
shared_examples '404 for unexistent diffable' do
context 'when diffable does not exists' do
it 'returns 404' do
go(diff_id: non_existing_record_id)
expect(MergeRequestDiff.find_by(id: non_existing_record_id)).to be_nil
expect(response).to have_gitlab_http_status(:not_found)
end
end
context 'when the merge_request_diff.id is blank' do
it 'returns 404' do
allow_next_instance_of(MergeRequest) do |instance|
allow(instance).to receive(:merge_request_diff).and_return(MergeRequestDiff.new(merge_request_id: instance.id))
go
expect(response).to have_gitlab_http_status(:not_found)
end
end
end
end
shared_examples 'forked project with submodules' do
render_views
let(:project) { create(:project, :repository) }
let(:forked_project) { fork_project_with_submodules(project) }
let(:merge_request) { create(:merge_request_with_diffs, source_project: forked_project, source_branch: 'add-submodule-version-bump', target_branch: 'master', target_project: project) }
before do
project.add_developer(user)
merge_request.reload
go
end
it 'renders' do
expect(response).to be_successful
expect(response.body).to have_content('Subproject commit')
end
end
shared_examples 'cached diff collection' do
it 'ensures diff highlighting cache writing' do
expect_next_instance_of(Gitlab::Diff::HighlightCache) do |cache|
expect(cache).to receive(:write_if_empty).once
end
go
end
end
shared_examples "diff note on-demand position creation" do
it "updates diff discussion positions" do
service = double("service")
expect(Discussions::CaptureDiffNotePositionsService).to receive(:new).with(merge_request).and_return(service)
expect(service).to receive(:execute)
go
end
end
shared_examples 'show the right diff files with previous diff_id' do
context 'with previous diff_id' do
let!(:merge_request_diff_1) { merge_request.merge_request_diffs.create!(head_commit_sha: '6f6d7e7ed97bb5f0054f2b1df789b39ca89b6ff9') }
let!(:merge_request_diff_2) { merge_request.merge_request_diffs.create!(head_commit_sha: '5937ac0a7beb003549fc5fd26fc247adbce4a52e', diff_type: :merge_head) }
subject { go(diff_id: merge_request_diff_1.id, diff_head: true) }
it 'shows the right diff files' do
subject
expect(json_response["diff_files"].size).to eq(merge_request_diff_1.files_count)
end
end
end
let(:project) { create(:project, :repository) }
let(:user) { create(:user) }
let(:merge_request) { create(:merge_request_with_diffs, target_project: project, source_project: project) }
before do
stub_feature_flags(diffs_gradual_load: false)
project.add_maintainer(user)
sign_in(user)
end
describe 'GET show' do
def go(extra_params = {})
params = {
namespace_id: project.namespace.to_param,
project_id: project,
id: merge_request.iid,
format: 'json'
}
get :show, params: params.merge(extra_params)
end
context 'with default params' do
context 'for the same project' do
before do
allow(controller).to receive(:rendered_for_merge_request?).and_return(true)
end
it 'serializes merge request diff collection' do
expect_next_instance_of(DiffsSerializer) do |instance|
expect(instance).to receive(:represent).with(an_instance_of(Gitlab::Diff::FileCollection::MergeRequestDiff), an_instance_of(Hash))
end
go
end
end
context 'when note is a legacy diff note' do
before do
create(:legacy_diff_note_on_merge_request, project: project, noteable: merge_request)
end
it 'serializes merge request diff collection' do
expect_next_instance_of(DiffsSerializer) do |instance|
expect(instance).to receive(:represent).with(an_instance_of(Gitlab::Diff::FileCollection::MergeRequestDiff), an_instance_of(Hash))
end
go
end
end
it_behaves_like 'forked project with submodules'
end
it_behaves_like 'cached diff collection'
it_behaves_like 'diff note on-demand position creation'
end
describe 'GET diffs_metadata' do
def go(extra_params = {})
params = {
namespace_id: project.namespace.to_param,
project_id: project,
id: merge_request.iid,
format: 'json'
}
get :diffs_metadata, params: params.merge(extra_params)
end
it_behaves_like '404 for unexistent diffable'
it_behaves_like 'show the right diff files with previous diff_id'
context 'when not authorized' do
let(:another_user) { create(:user) }
before do
sign_in(another_user)
end
it 'returns 404 when not a member' do
go
expect(response).to have_gitlab_http_status(:not_found)
end
it 'returns 404 when visibility level is not enough' do
project.add_guest(another_user)
go
expect(response).to have_gitlab_http_status(:not_found)
end
end
context 'with valid diff_id' do
it 'returns success' do
go(diff_id: merge_request.merge_request_diff.id)
expect(response).to have_gitlab_http_status(:ok)
end
it 'serializes diffs metadata with expected arguments' do
expected_options = {
environment: nil,
merge_request: merge_request,
merge_request_diff: merge_request.merge_request_diff,
merge_request_diffs: merge_request.merge_request_diffs,
start_version: nil,
start_sha: nil,
commit: nil,
latest_diff: true,
only_context_commits: false
}
expect_next_instance_of(DiffsMetadataSerializer) do |instance|
expect(instance).to receive(:represent)
.with(an_instance_of(Gitlab::Diff::FileCollection::MergeRequestDiff), expected_options)
.and_call_original
end
go(diff_id: merge_request.merge_request_diff.id)
end
end
context "with the :default_merge_ref_for_diffs flag on" do
let(:diffable_merge_ref) { true }
subject do
go(diff_head: true,
diff_id: merge_request.merge_request_diff.id,
start_sha: merge_request.merge_request_diff.start_commit_sha)
end
it "correctly generates the right diff between versions" do
MergeRequests::MergeToRefService.new(project: project, current_user: merge_request.author).execute(merge_request)
expect_next_instance_of(CompareService) do |service|
expect(service).to receive(:execute).with(
project,
merge_request.merge_request_diff.head_commit_sha,
straight: true)
end
subject
end
end
context 'with diff_head param passed' do
before do
allow(merge_request).to receive(:diffable_merge_ref?)
.and_return(diffable_merge_ref)
end
context 'the merge request can be compared with head' do
let(:diffable_merge_ref) { true }
it 'compares diffs with the head' do
create(:merge_request_diff, :merge_head, merge_request: merge_request)
go(diff_head: true)
expect(response).to have_gitlab_http_status(:ok)
end
end
context 'the merge request cannot be compared with head' do
let(:diffable_merge_ref) { false }
it 'compares diffs with the base' do
go(diff_head: true)
expect(response).to have_gitlab_http_status(:ok)
end
end
end
context 'with MR regular diff params' do
it 'returns success' do
go
expect(response).to have_gitlab_http_status(:ok)
end
it 'serializes diffs metadata with expected arguments' do
expected_options = {
environment: nil,
merge_request: merge_request,
merge_request_diff: merge_request.merge_request_diff,
merge_request_diffs: merge_request.merge_request_diffs,
start_version: nil,
start_sha: nil,
commit: nil,
latest_diff: true,
only_context_commits: false
}
expect_next_instance_of(DiffsMetadataSerializer) do |instance|
expect(instance).to receive(:represent)
.with(an_instance_of(Gitlab::Diff::FileCollection::MergeRequestDiff), expected_options)
.and_call_original
end
go
end
end
context 'with commit param' do
it 'returns success' do
go(commit_id: merge_request.diff_head_sha)
expect(response).to have_gitlab_http_status(:ok)
end
it 'serializes diffs metadata with expected arguments' do
expected_options = {
environment: nil,
merge_request: merge_request,
merge_request_diff: nil,
merge_request_diffs: merge_request.merge_request_diffs,
start_version: nil,
start_sha: nil,
commit: merge_request.diff_head_commit,
latest_diff: nil,
only_context_commits: false
}
expect_next_instance_of(DiffsMetadataSerializer) do |instance|
expect(instance).to receive(:represent)
.with(an_instance_of(Gitlab::Diff::FileCollection::Commit), expected_options)
.and_call_original
end
go(commit_id: merge_request.diff_head_sha)
end
end
end
describe 'GET diff_for_path' do
def diff_for_path(extra_params = {})
params = {
namespace_id: project.namespace.to_param,
project_id: project,
id: merge_request.iid,
format: 'json'
}
get :diff_for_path, params: params.merge(extra_params)
end
let(:existing_path) { 'files/ruby/popen.rb' }
context 'when the merge request exists' do
context 'when the user can view the merge request' do
context 'when the path exists in the diff' do
it 'enables diff notes' do
diff_for_path(old_path: existing_path, new_path: existing_path)
expect(assigns(:diff_notes_disabled)).to be_falsey
expect(assigns(:new_diff_note_attrs)).to eq(noteable_type: 'MergeRequest',
noteable_id: merge_request.id,
commit_id: nil)
end
it 'only renders the diffs for the path given' do
diff_for_path(old_path: existing_path, new_path: existing_path)
paths = json_response['diff_files'].map { |file| file['new_path'] }
expect(paths).to include(existing_path)
end
end
end
context 'when the user cannot view the merge request' do
before do
project.team.truncate
diff_for_path(old_path: existing_path, new_path: existing_path)
end
it 'returns a 404' do
expect(response).to have_gitlab_http_status(:not_found)
end
end
end
context 'when the merge request does not exist' do
before do
diff_for_path(id: merge_request.iid.succ, old_path: existing_path, new_path: existing_path)
end
it 'returns a 404' do
expect(response).to have_gitlab_http_status(:not_found)
end
end
context 'when the merge request belongs to a different project' do
let(:other_project) { create(:project) }
before do
other_project.add_maintainer(user)
diff_for_path(old_path: existing_path, new_path: existing_path, project_id: other_project)
end
it 'returns a 404' do
expect(response).to have_gitlab_http_status(:not_found)
end
end
end
describe 'GET diffs_batch' do
shared_examples_for 'serializes diffs with expected arguments' do
it 'serializes paginated merge request diff collection' do
expect_next_instance_of(PaginatedDiffSerializer) do |instance|
expect(instance).to receive(:represent)
.with(an_instance_of(collection), expected_options)
.and_call_original
end
subject
end
end
shared_examples_for 'successful request' do
it 'returns success' do
subject
expect(response).to have_gitlab_http_status(:ok)
end
it 'tracks mr_diffs event' do
expect(Gitlab::UsageDataCounters::MergeRequestActivityUniqueCounter)
.to receive(:track_mr_diffs_action)
.with(merge_request: merge_request)
subject
end
context 'when DNT is enabled' do
before do
request.headers['DNT'] = '1'
end
it 'does not track any mr_diffs event' do
expect(Gitlab::UsageDataCounters::MergeRequestActivityUniqueCounter)
.not_to receive(:track_mr_diffs_action)
expect(Gitlab::UsageDataCounters::MergeRequestActivityUniqueCounter)
.not_to receive(:track_mr_diffs_single_file_action)
subject
end
end
context 'when user has view_diffs_file_by_file set to false' do
before do
user.update!(view_diffs_file_by_file: false)
end
it 'does not track single_file_diffs events' do
expect(Gitlab::UsageDataCounters::MergeRequestActivityUniqueCounter)
.not_to receive(:track_mr_diffs_single_file_action)
subject
end
end
context 'when user has view_diffs_file_by_file set to true' do
before do
user.update!(view_diffs_file_by_file: true)
end
it 'tracks single_file_diffs events' do
expect(Gitlab::UsageDataCounters::MergeRequestActivityUniqueCounter)
.to receive(:track_mr_diffs_single_file_action)
.with(merge_request: merge_request, user: user)
subject
end
end
end
def collection_arguments(pagination_data = {})
{
environment: nil,
merge_request: merge_request,
diff_view: :inline,
merge_ref_head_diff: nil,
pagination_data: {
current_page: nil,
next_page: nil,
total_pages: nil
}.merge(pagination_data)
}
end
def go(extra_params = {})
params = {
namespace_id: project.namespace.to_param,
project_id: project,
id: merge_request.iid,
page: 1,
per_page: 20,
format: 'json'
}
get :diffs_batch, params: params.merge(extra_params)
end
it_behaves_like '404 for unexistent diffable'
it_behaves_like 'show the right diff files with previous diff_id'
context 'when not authorized' do
let(:other_user) { create(:user) }
before do
sign_in(other_user)
end
it 'returns 404' do
go
expect(response).to have_gitlab_http_status(:not_found)
end
end
context 'with valid diff_id' do
subject { go(diff_id: merge_request.merge_request_diff.id) }
it_behaves_like 'serializes diffs with expected arguments' do
let(:collection) { Gitlab::Diff::FileCollection::MergeRequestDiffBatch }
let(:expected_options) { collection_arguments(current_page: 1, total_pages: 1).merge(merge_ref_head_diff: false) }
end
it_behaves_like 'successful request'
end
context 'with commit_id param' do
subject { go(commit_id: merge_request.diff_head_sha) }
it_behaves_like 'serializes diffs with expected arguments' do
let(:collection) { Gitlab::Diff::FileCollection::Commit }
let(:expected_options) { collection_arguments }
end
end
context 'with diff_id and start_sha params' do
subject do
go(diff_id: merge_request.merge_request_diff.id,
start_sha: merge_request.merge_request_diff.start_commit_sha)
end
it_behaves_like 'serializes diffs with expected arguments' do
let(:collection) { Gitlab::Diff::FileCollection::Compare }
let(:expected_options) { collection_arguments.merge(merge_ref_head_diff: false) }
end
it_behaves_like 'successful request'
end
context 'with paths param' do
let(:example_file_path) { "README" }
let(:file_path_option) { { paths: [example_file_path] } }
subject do
go(file_path_option)
end
it_behaves_like 'serializes diffs with expected arguments' do
let(:collection) { Gitlab::Diff::FileCollection::MergeRequestDiffBatch }
let(:expected_options) do
collection_arguments(current_page: 1, total_pages: 1)
end
end
it_behaves_like 'successful request'
it 'filters down the response to the expected file path' do
subject
expect(json_response["diff_files"].size).to eq(1)
expect(json_response["diff_files"].first["file_path"]).to eq(example_file_path)
end
end
context 'with default params' do
subject { go }
it_behaves_like 'serializes diffs with expected arguments' do
let(:collection) { Gitlab::Diff::FileCollection::MergeRequestDiffBatch }
let(:expected_options) { collection_arguments(current_page: 1, total_pages: 1) }
end
it_behaves_like 'successful request'
end
context 'with smaller diff batch params' do
subject { go(page: 2, per_page: 5) }
it_behaves_like 'serializes diffs with expected arguments' do
let(:collection) { Gitlab::Diff::FileCollection::MergeRequestDiffBatch }
let(:expected_options) { collection_arguments(current_page: 2, next_page: 3, total_pages: 4) }
end
it_behaves_like 'successful request'
end
it_behaves_like 'forked project with submodules'
it_behaves_like 'cached diff collection'
context 'diff unfolding' do
let!(:unfoldable_diff_note) do
create(:diff_note_on_merge_request, :folded_position, project: project, noteable: merge_request)
end
let!(:diff_note) do
create(:diff_note_on_merge_request, project: project, noteable: merge_request)
end
it 'unfolds correct diff file positions' do
expect_next_instance_of(Gitlab::Diff::FileCollection::MergeRequestDiffBatch) do |instance|
expect(instance)
.to receive(:unfold_diff_files)
.with([unfoldable_diff_note.position])
.and_call_original
end
go
end
end
end
end