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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe MergeRequestDiffEntity do
let_it_be(:project) { create(:project, :repository) }
let(:request) { EntityRequest.new(project: project) }
let(:merge_request) { create(:merge_request_with_diffs, target_project: project, source_project: project) }
let(:merge_request_diffs) { merge_request.merge_request_diffs }
let(:merge_request_diff) { merge_request_diffs.first }
let(:entity) { initialize_entity(merge_request, merge_request_diff) }
def initialize_entity(merge_request, merge_request_diff)
described_class.new(
merge_request_diff,
request: request,
merge_request: merge_request,
merge_request_diff: merge_request_diff,
merge_request_diffs: merge_request_diffs
)
end
subject { entity.as_json }
context 'as json' do
it 'exposes needed attributes' do
expect(subject).to include(
:version_index, :created_at, :commits_count,
:latest, :short_commit_sha, :version_path,
:compare_path
)
end
end
describe '#version_index' do
shared_examples 'version_index is nil' do
it 'returns nil' do
expect(subject[:version_index]).to be_nil
end
end
context 'when diff is not present' do
let(:entity) do
described_class.new(
merge_request_diff,
request: request,
merge_request: merge_request,
merge_request_diffs: merge_request_diffs
)
end
it_behaves_like 'version_index is nil'
end
context 'when diff is not included in @merge_request_diffs' do
let(:merge_request_diff) { create(:merge_request_diff) }
let(:merge_request_diff_2) { create(:merge_request_diff) }
before do
merge_request_diffs << merge_request_diff_2
end
it_behaves_like 'version_index is nil'
end
context 'when @merge_request_diffs.size <= 1' do
before do
expect(merge_request_diffs.size).to eq(1)
end
it_behaves_like 'version_index is nil'
end
context 'when @merge_request_diffs.size > 1' do
let(:merge_request) { create(:merge_request_with_multiple_diffs) }
it 'returns difference between size and diff index' do
expect(merge_request_diffs.size).to eq(2)
# diff index: 0
subject = initialize_entity(merge_request, merge_request_diffs.first)
expect(subject.as_json[:version_index]).to eq(2)
# diff index: 1
subject = initialize_entity(merge_request, merge_request_diffs.last)
expect(subject.as_json[:version_index]).to eq(1)
end
end
end
describe '#short_commit_sha' do
it 'returns short sha' do
expect(subject[:short_commit_sha]).to eq('b83d6e39')
end
it 'returns nil if head_commit_sha does not exist' do
allow(merge_request_diff).to receive(:head_commit_sha).and_return(nil)
expect(subject[:short_commit_sha]).to eq(nil)
end
end
describe '#head_version_path' do
before do
allow(merge_request).to receive(:diffable_merge_ref?)
.and_return(diffable_merge_ref)
end
context 'merge request can be merged' do
let(:diffable_merge_ref) { true }
it 'returns diff path with diff_head param set' do
expect(subject[:head_version_path]).to eq(
"/#{project.full_path}/-/merge_requests/#{merge_request.iid}/diffs?diff_head=true"
)
end
end
context 'merge request cannot be merged' do
let(:diffable_merge_ref) { false }
it 'returns diff path with diff_head param set' do
expect(subject[:head_version_path]).to be_nil
end
end
end
end
|
