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require 'spec_helper'
describe MergeRequestDiff, models: true do
describe 'create new record' do
subject { create(:merge_request).merge_request_diff }
it { expect(subject).to be_valid }
it { expect(subject).to be_persisted }
it { expect(subject.commits.count).to eq(29) }
it { expect(subject.diffs.count).to eq(20) }
it { expect(subject.head_commit_sha).to eq('b83d6e391c22777fca1ed3012fce84f633d7fed0') }
it { expect(subject.base_commit_sha).to eq('ae73cb07c9eeaf35924a10f713b364d32b2dd34f') }
it { expect(subject.start_commit_sha).to eq('0b4bc9a49b562e85de7cc9e834518ea6828729b9') }
end
describe '#latest' do
let!(:mr) { create(:merge_request, :with_diffs) }
let!(:first_diff) { mr.merge_request_diff }
let!(:last_diff) { mr.create_merge_request_diff }
it { expect(last_diff.latest?).to be_truthy }
it { expect(first_diff.latest?).to be_falsey }
end
describe '#diffs' do
let(:mr) { create(:merge_request, :with_diffs) }
let(:mr_diff) { mr.merge_request_diff }
context 'when the :ignore_whitespace_change option is set' do
it 'creates a new compare object instead of loading from the DB' do
expect(mr_diff).not_to receive(:load_diffs)
expect(Gitlab::Git::Compare).to receive(:new).and_call_original
mr_diff.raw_diffs(ignore_whitespace_change: true)
end
end
context 'when the raw diffs are empty' do
before { mr_diff.update_attributes(st_diffs: '') }
it 'returns an empty DiffCollection' do
expect(mr_diff.raw_diffs).to be_a(Gitlab::Git::DiffCollection)
expect(mr_diff.raw_diffs).to be_empty
end
end
context 'when the raw diffs have invalid content' do
before { mr_diff.update_attributes(st_diffs: ["--broken-diff"]) }
it 'returns an empty DiffCollection' do
expect(mr_diff.raw_diffs.to_a).to be_empty
expect(mr_diff.raw_diffs).to be_a(Gitlab::Git::DiffCollection)
expect(mr_diff.raw_diffs).to be_empty
end
end
context 'when the raw diffs exist' do
it 'returns the diffs' do
expect(mr_diff.raw_diffs).to be_a(Gitlab::Git::DiffCollection)
expect(mr_diff.raw_diffs).not_to be_empty
end
context 'when the :paths option is set' do
let(:diffs) { mr_diff.raw_diffs(paths: ['files/ruby/popen.rb', 'files/ruby/popen.rb']) }
it 'only returns diffs that match the (old path, new path) given' do
expect(diffs.map(&:new_path)).to contain_exactly('files/ruby/popen.rb')
end
it 'uses the diffs from the DB' do
expect(mr_diff).to receive(:load_diffs)
diffs
end
end
end
end
describe '#save_diffs' do
it 'saves collected state' do
mr_diff = create(:merge_request).merge_request_diff
expect(mr_diff.collected?).to be_truthy
end
it 'saves overflow state' do
allow(Commit).to receive(:max_diff_options)
.and_return(max_lines: 0, max_files: 0)
mr_diff = create(:merge_request).merge_request_diff
expect(mr_diff.overflow?).to be_truthy
end
it 'saves empty state' do
allow_any_instance_of(MergeRequestDiff).to receive(:commits)
.and_return([])
mr_diff = create(:merge_request).merge_request_diff
expect(mr_diff.empty?).to be_truthy
end
end
describe '#commits_sha' do
it 'returns all commits SHA using serialized commits' do
subject.st_commits = [
{ id: 'sha1' },
{ id: 'sha2' }
]
expect(subject.commits_sha).to eq(%w(sha1 sha2))
end
end
describe '#compare_with' do
subject { create(:merge_request, source_branch: 'fix').merge_request_diff }
it 'delegates compare to the service' do
expect(CompareService).to receive(:new).and_call_original
subject.compare_with(nil)
end
it 'uses git diff A..B approach by default' do
diffs = subject.compare_with('0b4bc9a49b562e85de7cc9e834518ea6828729b9').diffs
expect(diffs.size).to eq(3)
end
end
describe '#commits_count' do
it 'returns number of commits using serialized commits' do
subject.st_commits = [
{ id: 'sha1' },
{ id: 'sha2' }
]
expect(subject.commits_count).to eq 2
end
end
end
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