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# frozen_string_literal: true
require 'spec_helper'
require 'ttfunk/table/cff'
RSpec.describe TTFunk::Table::Cff::TopDict do
let(:font) { TTFunk::File.open(font_path) }
let(:top_dict) { font.cff.top_index[0] }
let(:font_path) { test_font('NotoSansCJKsc-Thin', :otf) }
context 'with a CID-keyed font' do
subject { top_dict.is_cid_font? }
describe '#is_cid_font?' do
it { is_expected.to be(true) }
end
end
describe '#encode' do
it 'produces an encoded dict that can be re-parsed successfully' do
charmap = font.cmap.unicode.first.code_map.transform_values { |v| { old: v, new: v } }
encoded = top_dict.encode
top_dict_length = encoded.length
top_dict_hash = top_dict.to_h
placeholders = encoded.placeholders.dup
top_dict.finalize(encoded, charmap)
file = TestFile.new(StringIO.new(encoded.string))
new_top_dict = described_class.new(file, 0, top_dict_length)
new_top_dict_hash = new_top_dict.to_h
# replace all the old offsets with the new ones so the dicts
# (hopefully) match
placeholders.each do |name, placeholder|
start = placeholder.position + 1
finish = placeholder.position + placeholder.length
offset = encoded.string[start...finish].unpack1('N')
operator = described_class::POINTER_OPERATORS[name]
top_dict_hash[operator][-1] = offset
end
expect(new_top_dict_hash).to eq(top_dict_hash)
end
end
context 'with a non CID-keyed font' do
subject { top_dict.is_cid_font? }
let(:font_path) { test_font('Exo-Regular', :otf) }
describe '#is_cid_font?' do
it { is_expected.to be(false) }
end
end
end
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