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# frozen_string_literal: true
require 'spec_helper'
describe Gitlab::Diff::PositionCollection do
let(:merge_request) { build(:merge_request) }
let(:text_position) do
build(:text_diff_position, :added, diff_refs: diff_refs)
end
let(:folded_text_position) do
build(:text_diff_position, diff_refs: diff_refs, old_line: 1, new_line: 1)
end
let(:image_position) do
build(:image_diff_position, diff_refs: diff_refs)
end
let(:diff_refs) { merge_request.diff_refs }
let(:invalid_position) { 'a position' }
let(:head_sha) { merge_request.diff_head_sha }
let(:collection) do
described_class.new([text_position, folded_text_position, image_position, invalid_position], head_sha)
end
describe '#to_a' do
it 'returns all positions that are Gitlab::Diff::Position' do
expect(collection.to_a).to eq([text_position, folded_text_position, image_position])
end
end
describe '#unfoldable' do
it 'returns unfoldable diff positions' do
expect(collection.unfoldable).to eq([folded_text_position])
end
context 'when given head_sha does not match with positions head_sha' do
let(:head_sha) { 'unknown' }
it 'returns no position' do
expect(collection.unfoldable).to be_empty
end
end
context 'when given head_sha is nil' do
let(:head_sha) { nil }
it 'returns unfoldable diff positions unfiltered by head_sha' do
expect(collection.unfoldable).to eq([folded_text_position])
end
end
end
describe '#concat' do
let(:new_text_position) do
build(:text_diff_position, diff_refs: diff_refs, old_line: 1, new_line: 1)
end
it 'returns a Gitlab::Diff::Position' do
expect(collection.concat([new_text_position])).to be_a(described_class)
end
it 'concatenates the new position to the collection' do
collection.concat([new_text_position])
expect(collection.to_a).to eq([text_position, folded_text_position, image_position, new_text_position])
end
end
end
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