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# frozen_string_literal: true
require_relative 'spec_helper'
describe 'Asciidoctor::PDF::Optimizer' do
it 'should optimize output file if optimize attribute is set' do
input_file = Pathname.new example_file 'basic-example.adoc'
to_file = to_pdf_file input_file, 'optimizer-not-optimized.pdf'
to_optimized_file = to_pdf_file input_file, 'optimizer-default.pdf', attribute_overrides: { 'title-page' => '', 'optimize' => '', 'subject' => 'Example' }
to_file_size = (File.stat to_file).size
to_optimized_file_size = (File.stat to_optimized_file).size
(expect to_optimized_file_size).to be < to_file_size
pdf = PDF::Reader.new to_optimized_file
(expect pdf.pdf_version).to eql 1.4
(expect pdf.pages).to have_size 3
pdf_info = pdf.info
(expect pdf_info[:Producer]).to include 'Ghostscript'
(expect pdf_info[:Title]).to eql 'Document Title'
(expect pdf_info[:Author]).to eql 'Doc Writer'
(expect pdf_info[:Subject]).to eql 'Example'
(expect defined? Asciidoctor::PDF::Optimizer).to be_truthy
# NOTE: assert constructor behavior once we know the class has been loaded
optimizer = Asciidoctor::PDF::Optimizer.new
(expect optimizer.quality).to eql :default
(expect optimizer.compatibility_level).to eql '1.4'
end
it 'should use existing pdfmark file if present when optimizing' do
input_file = Pathname.new example_file 'basic-example.adoc'
pdfmark_file = Pathname.new output_file 'optimizer-pdfmark.pdfmark'
pdfmark_file.write <<~'EOS'
[ /Title (All Your PDF Are Belong To Us)
/Author (CATS)
/Subject (Zero Wing)
/ModDate (D:19920101000000-00'00')
/CreationDate (D:19920101000000-00'00')
/Creator (Genesis)
/DOCINFO pdfmark
EOS
to_file = to_pdf_file input_file, 'optimizer-pdfmark.pdf', attribute_overrides: { 'optimize' => '' }
pdf = PDF::Reader.new to_file
pdf_info = pdf.info
(expect pdf_info[:Producer]).to include 'Ghostscript'
(expect pdf_info[:Title]).to eql 'All Your PDF Are Belong To Us'
(expect pdf_info[:Subject]).to eql 'Zero Wing'
(expect pdf_info[:Creator]).to eql 'Genesis'
pdfmark_file.unlink
end
it 'should optimize output file using quality specified by value of optimize attribute' do
input_file = Pathname.new example_file 'basic-example.adoc'
to_screen_file = to_pdf_file input_file, 'optimizer-screen.pdf', attribute_overrides: { 'title-page' => '', 'optimize' => 'screen' }
to_prepress_file = to_pdf_file input_file, 'optimizer-prepress.pdf', attribute_overrides: { 'title-page' => '', 'optimize' => 'prepress' }
to_screen_file_size = (File.stat to_screen_file).size
to_prepress_file_size = (File.stat to_prepress_file).size
(expect to_prepress_file_size).to be < to_screen_file_size
pdf = PDF::Reader.new to_prepress_file
(expect pdf.pdf_version).to eql 1.4
(expect pdf.pages).to have_size 3
pdf_info = pdf.info
(expect pdf_info[:Producer]).to include 'Ghostscript'
(expect pdf_info[:Title]).to eql 'Document Title'
(expect pdf_info[:Author]).to eql 'Doc Writer'
end
it 'should use default quality if specified quality is not recognized' do
input_file = Pathname.new example_file 'basic-example.adoc'
(expect do
to_pdf_file input_file, 'optimizer-fallback-quality.pdf', attribute_overrides: { 'optimize' => 'foobar' }
end).to not_raise_exception
end
it 'should install bin script named asciidoctor-pdf-optimize' do
bin_script = (Pathname.new Gem.bindir) / 'asciidoctor-pdf-optimize'
bin_script = Pathname.new Gem.bin_path 'asciidoctor-pdf', 'asciidoctor-pdf-optimize' unless bin_script.exist?
(expect bin_script).to exist
end
it 'should optimize PDF passed to asciidoctor-pdf-optimizer CLI', cli: true do
input_file = Pathname.new example_file 'basic-example.adoc'
to_file = to_pdf_file input_file, 'optimizer-cli.pdf'
out, err, res = run_command asciidoctor_pdf_optimize_bin, '--quality', 'prepress', to_file
(expect res.exitstatus).to be 0
(expect out).to be_empty
(expect err).to be_empty
pdf_info = (PDF::Reader.new to_file).info
(expect pdf_info[:Producer]).to include 'Ghostscript'
end
it 'should not crash if quality passed to asciidoctor-pdf-optimizer CLI is not recognized', cli: true do
input_file = Pathname.new example_file 'basic-example.adoc'
to_file = to_pdf_file input_file, 'optimizer-cli-fallback-quality.pdf'
out, err, res = run_command asciidoctor_pdf_optimize_bin, '--quality', 'foobar', to_file
(expect res.exitstatus).to be 0
(expect out).to be_empty
(expect err).to be_empty
pdf_info = (PDF::Reader.new to_file).info
(expect pdf_info[:Producer]).to include 'Ghostscript'
end
end if ENV['RGHOST_VERSION']
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