1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751
|
require 'spec_helper'
require 'tempfile'
describe Prawn::Document do
let(:pdf) { create_pdf }
describe '.new' do
it 'does not modify its argument' do
options = { page_layout: :landscape }
described_class.new(options)
expect(options).to eq(page_layout: :landscape)
end
end
describe 'The cursor' do
it 'equals pdf.y - bounds.absolute_bottom' do
pdf = described_class.new
expect(pdf.cursor).to eq(pdf.bounds.top)
pdf.y = 300
expect(pdf.cursor).to eq(pdf.y - pdf.bounds.absolute_bottom)
end
it 'is able to move relative to the bottom margin' do
pdf = described_class.new
pdf.move_cursor_to(10)
expect(pdf.cursor).to eq(10)
expect(pdf.y).to eq(pdf.cursor + pdf.bounds.absolute_bottom)
end
end
describe 'when generating a document with a custom text formatter' do
it 'uses the provided text formatter' do
class TestTextFormatter
def self.format(string)
[
{
text: string.gsub('Dr. Who?', "Just 'The Doctor'."),
styles: [],
color: nil,
link: nil,
anchor: nil,
local: nil,
font: nil,
size: nil,
character_spacing: nil
}
]
end
end
pdf = described_class.new text_formatter: TestTextFormatter
pdf.text 'Dr. Who?', inline_format: true
text = PDF::Inspector::Text.analyze(pdf.render)
expect(text.strings.first).to eq("Just 'The Doctor'.")
end
end
describe 'when generating a document from a subclass' do
it 'is an instance of the subclass' do
custom_document = Class.new(described_class)
custom_document.generate(Tempfile.new('generate_test').path) do |e|
expect(e.class).to eq(custom_document)
expect(e).to be_a_kind_of(described_class)
end
end
it 'retains any extensions found on Prawn::Document' do
mod1 = Module.new { attr_reader :test_extensions1 }
mod2 = Module.new { attr_reader :test_extensions2 }
described_class.extensions << mod1 << mod2
custom_document = Class.new(described_class)
expect(custom_document.extensions).to eq([mod1, mod2])
# remove the extensions we added to prawn document
described_class.extensions.delete(mod1)
described_class.extensions.delete(mod2)
expect(described_class.new.respond_to?(:test_extensions1)).to eq false
expect(described_class.new.respond_to?(:test_extensions2)).to eq false
# verify these still exist on custom class
expect(custom_document.extensions).to eq([mod1, mod2])
expect(custom_document.new.respond_to?(:test_extensions1)).to eq true
expect(custom_document.new.respond_to?(:test_extensions2)).to eq true
end
end
describe 'When creating multi-page documents' do
it 'initializes with a single page' do
page_counter = PDF::Inspector::Page.analyze(pdf.render)
expect(page_counter.pages.size).to eq(1)
expect(pdf.page_count).to eq(1)
end
it 'provides an accurate page_count' do
3.times { pdf.start_new_page }
page_counter = PDF::Inspector::Page.analyze(pdf.render)
expect(page_counter.pages.size).to eq(4)
expect(pdf.page_count).to eq(4)
end
end
describe 'When beginning each new page' do
describe 'Background image feature' do
let(:filename) { "#{Prawn::DATADIR}/images/pigs.jpg" }
let(:pdf) { described_class.new(background: filename) }
it 'places a background image if it is in options block' do
output = pdf.render
images = PDF::Inspector::XObject.analyze(output)
# there should be 2 images in the page resources
expect(images.page_xobjects.first.size).to eq(1)
end
it 'places a background image interntally if it is in options block' do
expect(pdf.instance_variable_defined?(:@background)).to eq(true)
expect(pdf.instance_variable_get(:@background)).to eq(filename)
end
end
end
describe '#float' do
it 'restores the original y-position' do
orig_y = pdf.y
pdf.float { pdf.text 'Foo' }
expect(pdf.y).to eq(orig_y)
end
it 'teleports across pages if necessary' do
pdf.float do
pdf.text 'Foo'
pdf.start_new_page
pdf.text 'Bar'
end
pdf.text 'Baz'
pages = PDF::Inspector::Page.analyze(pdf.render).pages
expect(pages.size).to eq(2)
expect(pages[0][:strings]).to eq(%w[Foo Baz])
expect(pages[1][:strings]).to eq(['Bar'])
end
end
describe '#start_new_page' do
it "doesn't modify the options hash" do
expect do
described_class.new.start_new_page({ margin: 0 }.freeze)
end.to_not raise_error
end
end
describe '#page_number' do
it 'is 1 for a new document' do
pdf = described_class.new
expect(pdf.page_number).to eq(1)
end
it 'is 0 for documents with no pages' do
pdf = described_class.new(skip_page_creation: true)
expect(pdf.page_number).to eq(0)
end
it 'is changed by go_to_page' do
pdf = described_class.new
10.times { pdf.start_new_page }
pdf.go_to_page 3
expect(pdf.page_number).to eq(3)
end
end
describe 'on_page_create callback' do
it 'is delegated from Document to renderer' do
expect(pdf.respond_to?(:on_page_create)).to eq true
end
it 'is invoked with document' do
called_with = nil
pdf.renderer.on_page_create { |*args| called_with = args }
pdf.start_new_page
expect(called_with).to eq([pdf])
end
it 'is invoked for each new page' do
trigger = instance_double('trigger')
allow(trigger).to receive(:fire)
pdf.renderer.on_page_create { trigger.fire }
5.times { pdf.start_new_page }
expect(trigger).to have_received(:fire).exactly(5).times
end
it 'is replaceable' do
trigger1 = instance_double('trigger 1')
allow(trigger1).to receive(:fire)
trigger2 = instance_double('trigger 2')
allow(trigger2).to receive(:fire)
pdf.renderer.on_page_create { trigger1.fire }
pdf.start_new_page
pdf.renderer.on_page_create { trigger2.fire }
pdf.start_new_page
expect(trigger1).to have_received(:fire).once
expect(trigger2).to have_received(:fire).once
end
it 'is clearable by calling on_page_create without a block' do
trigger = instance_double('trigger')
allow(trigger).to receive(:fire)
pdf.renderer.on_page_create { trigger.fire }
pdf.start_new_page
pdf.renderer.on_page_create
pdf.start_new_page
expect(trigger).to have_received(:fire).once
end
end
describe 'compression' do
it 'does not compress the page content stream if compression is disabled' do
pdf = described_class.new(compress: false)
allow(pdf.page.content.stream).to receive(:compress!).and_return(true)
pdf.text 'Hi There' * 20
pdf.render
expect(pdf.page.content.stream).to_not have_received(:compress!)
end
it 'compresses the page content stream if compression is enabled' do
pdf = described_class.new(compress: true)
allow(pdf.page.content.stream).to receive(:compress!).and_return(true)
pdf.text 'Hi There' * 20
pdf.render
expect(pdf.page.content.stream).to have_received(:compress!).once
end
it 'results in a smaller file size when compressed' do
doc_uncompressed = described_class.new
doc_compressed = described_class.new(compress: true)
[doc_compressed, doc_uncompressed].each do |pdf|
pdf.font "/usr/share/fonts/truetype/arphic-gkai00mp/gkai00mp.ttf"
pdf.text '更可怕的是,同质化竞争对手可以按照URL中后面这个ID来遍历' * 10
end
expect(doc_compressed.render.length).to be <
doc_uncompressed.render.length
end
end
describe 'Dometadata' do
it 'outputs strings as UTF-16 with a byte order mark' do
pdf = described_class.new(info: { Author: 'Lóránt' })
expect(pdf.state.store.info.object).to match(
# UTF-16: BOM L ó r á n t
%r{/Author\s*<feff004c00f3007200e1006e0074>}i
)
end
end
describe 'When reopening pages' do
it 'modifies the content stream size' do
pdf = described_class.new do
text 'Page 1'
start_new_page
text 'Page 2'
go_to_page 1
text 'More for page 1'
end
# Indirectly verify that the actual length does not match dictionary
# length. If it isn't, a MalformedPDFError will be raised
PDF::Inspector::Page.analyze(pdf.render)
end
it 'inserts pages after the current page when calling start_new_page' do
pdf = described_class.new
3.times do |i|
pdf.text "Old page #{i + 1}"
pdf.start_new_page
end
pdf.go_to_page 1
pdf.start_new_page
pdf.text 'New page 2'
expect(pdf.page_number).to eq(2)
pages = PDF::Inspector::Page.analyze(pdf.render).pages
expect(pages.size).to eq(5)
expect(pages[1][:strings]).to eq(['New page 2'])
expect(pages[2][:strings]).to eq(['Old page 2'])
end
it 'restores the layout of the page' do
doc = described_class.new do
start_new_page layout: :landscape
end
lsize = [doc.bounds.width, doc.bounds.height]
expect([doc.bounds.width, doc.bounds.height]).to eq lsize
doc.go_to_page 1
expect([doc.bounds.width, doc.bounds.height]).to eq lsize.reverse
end
it 'restores the margin box of the page' do
doc = described_class.new(margin: [100, 100])
page1_bounds = doc.bounds
doc.start_new_page(margin: [200, 200])
expect([doc.bounds.width, doc.bounds.height]).to eq(
[page1_bounds.width - 200, page1_bounds.height - 200]
)
doc.go_to_page(1)
expect(doc.bounds.width).to eq page1_bounds.width
expect(doc.bounds.height).to eq page1_bounds.height
end
end
describe 'When setting page size' do
it 'defaults to LETTER' do
pdf = described_class.new
pages = PDF::Inspector::Page.analyze(pdf.render).pages
expect(pages.first[:size]).to eq(PDF::Core::PageGeometry::SIZES['LETTER'])
end
(PDF::Core::PageGeometry::SIZES.keys - ['LETTER']).each do |k|
it "should provide #{k} geometry" do
pdf = described_class.new(page_size: k)
pages = PDF::Inspector::Page.analyze(pdf.render).pages
expect(pages.first[:size]).to eq(PDF::Core::PageGeometry::SIZES[k])
end
end
it 'allows custom page size' do
pdf = described_class.new(page_size: [1920, 1080])
pages = PDF::Inspector::Page.analyze(pdf.render).pages
expect(pages.first[:size]).to eq([1920, 1080])
end
it 'retains page size by default when starting a new page' do
pdf = described_class.new(page_size: 'LEGAL')
pdf.start_new_page
pages = PDF::Inspector::Page.analyze(pdf.render).pages
pages.each do |page|
expect(page[:size]).to eq(PDF::Core::PageGeometry::SIZES['LEGAL'])
end
end
end
describe 'When setting page layout' do
it 'reverses coordinates for landscape' do
pdf = described_class.new(page_size: 'A4', page_layout: :landscape)
pages = PDF::Inspector::Page.analyze(pdf.render).pages
expect(pages.first[:size]).to eq(
PDF::Core::PageGeometry::SIZES['A4'].reverse
)
end
it 'retains page layout by default when starting a new page' do
pdf = described_class.new(page_layout: :landscape)
pdf.start_new_page(trace: true)
pages = PDF::Inspector::Page.analyze(pdf.render).pages
pages.each do |page|
expect(page[:size]).to eq(
PDF::Core::PageGeometry::SIZES['LETTER'].reverse
)
end
end
it 'swaps the bounds when starting a new page with different layout' do
pdf = described_class.new
size = [pdf.bounds.width, pdf.bounds.height]
pdf.start_new_page(layout: :landscape)
expect([pdf.bounds.width, pdf.bounds.height]).to eq(size.reverse)
end
end
describe '#mask' do
it 'allows transactional restoration of attributes' do
pdf = described_class.new
y = pdf.y
line_width = pdf.line_width
pdf.mask(:y, :line_width) do
pdf.y = y + 1
pdf.line_width = line_width + 1
expect(pdf.y).to_not eq(y)
expect(pdf.line_width).to_not eq(line_width)
end
expect(pdf.y).to eq(y)
expect(pdf.line_width).to eq(line_width)
end
end
describe '#render' do
it 'returns a 8 bit encoded string on a m17n aware VM' do
pdf = described_class.new(page_size: 'A4', page_layout: :landscape)
pdf.line [100, 100], [200, 200]
str = pdf.render
expect(str.encoding.to_s).to eq('ASCII-8BIT')
end
it 'triggers before_render callbacks just before rendering' do
pdf = described_class.new
# Verify the order: finalize -> fire callbacks -> render body
allow(pdf.renderer).to receive(:finalize_all_page_contents)
.and_call_original
trigger = instance_double('trigger')
allow(trigger).to receive(:fire)
pdf.renderer.before_render { trigger.fire }
allow(pdf.renderer).to receive(:render_body).and_call_original
pdf.render(StringIO.new)
expect(pdf.renderer).to have_received(:finalize_all_page_contents)
.ordered
expect(trigger).to have_received(:fire).ordered
expect(pdf.renderer).to have_received(:render_body).ordered
end
it 'is idempotent' do
pdf = described_class.new
contents = pdf.render
contents2 = pdf.render
expect(contents2).to eq(contents)
end
end
describe 'PDF file versions' do
it 'defaults to 1.3' do
pdf = described_class.new
str = pdf.render
expect(str[0, 8]).to eq('%PDF-1.3')
end
it 'allows the default to be changed' do
pdf = described_class.new
pdf.renderer.min_version(1.4)
str = pdf.render
expect(str[0, 8]).to eq('%PDF-1.4')
end
end
describe '#go_to_page' do
it 'has 2 pages after calling start_new_page and go_to_page' do
pdf = described_class.new
pdf.text 'James'
pdf.start_new_page
pdf.text 'Anthony'
pdf.go_to_page(1)
pdf.text 'Healy'
page_counter = PDF::Inspector::Page.analyze(pdf.render)
expect(page_counter.pages.size).to eq(2)
end
it 'correctlies add text to pages' do
pdf = described_class.new
pdf.text 'James'
pdf.start_new_page
pdf.text 'Anthony'
pdf.go_to_page(1)
pdf.text 'Healy'
text = PDF::Inspector::Text.analyze(pdf.render)
expect(text.strings.size).to eq(3)
expect(text.strings.include?('James')).to eq(true)
expect(text.strings.include?('Anthony')).to eq(true)
expect(text.strings.include?('Healy')).to eq(true)
end
end
describe 'content stream characteristics' do
it 'has 1 single content stream for a single page PDF' do
pdf = described_class.new
pdf.text 'James'
output = StringIO.new(pdf.render)
hash = PDF::Reader::ObjectHash.new(output)
streams = hash.values.select { |obj| obj.is_a?(PDF::Reader::Stream) }
expect(streams.size).to eq(1)
end
it 'has 1 single content stream for a single page PDF, even if go_to_page '\
'is used' do
pdf = described_class.new
pdf.text 'James'
pdf.go_to_page(1)
pdf.text 'Healy'
output = StringIO.new(pdf.render)
hash = PDF::Reader::ObjectHash.new(output)
streams = hash.values.select { |obj| obj.is_a?(PDF::Reader::Stream) }
expect(streams.size).to eq(1)
end
end
describe '#number_pages' do
let(:pdf) { described_class.new(skip_page_creation: true) }
it "replaces the '<page>' string with the proper page number" do
pdf.start_new_page
allow(pdf).to receive(:text_box)
pdf.number_pages '<page>, test', page_filter: :all
expect(pdf).to have_received(:text_box).with('1, test', height: 50)
end
it "replaces the '<total>' string with the total page count" do
pdf.start_new_page
allow(pdf).to receive(:text_box)
pdf.number_pages 'test, <total>', page_filter: :all
expect(pdf).to have_received(:text_box).with('test, 1', height: 50)
end
it 'must print each page if given the :all page_filter' do
10.times { pdf.start_new_page }
allow(pdf).to receive(:text_box)
pdf.number_pages 'test', page_filter: :all
expect(pdf).to have_received(:text_box).exactly(10).times
end
it 'must print each page if no :page_filter is specified' do
10.times { pdf.start_new_page }
allow(pdf).to receive(:text_box)
pdf.number_pages 'test'
expect(pdf).to have_received(:text_box).exactly(10).times
end
it 'must not print the page number if given a nil filter' do
10.times { pdf.start_new_page }
allow(pdf).to receive(:text_box)
pdf.number_pages 'test', page_filter: nil
expect(pdf).to_not have_received(:text_box)
end
context 'start_count_at option' do
[1, 2].each do |startat|
context "equal to #{startat}" do
it 'increments the pages' do
2.times { pdf.start_new_page }
options = { page_filter: :all, start_count_at: startat }
allow(pdf).to receive(:text_box)
pdf.number_pages '<page> <total>', options
expect(pdf).to have_received(:text_box)
.with("#{startat} 2", height: 50)
expect(pdf).to have_received(:text_box)
.with("#{startat + 1} 2", height: 50)
end
end
end
[0, nil].each do |val|
context "equal to #{val}" do
it 'defaults to start at page 1' do
3.times { pdf.start_new_page }
options = { page_filter: :all, start_count_at: val }
allow(pdf).to receive(:text_box)
pdf.number_pages '<page> <total>', options
expect(pdf).to have_received(:text_box).with('1 3', height: 50)
expect(pdf).to have_received(:text_box).with('2 3', height: 50)
expect(pdf).to have_received(:text_box).with('3 3', height: 50)
end
end
end
end
context 'total_pages option' do
it 'allows the total pages count to be overridden' do
2.times { pdf.start_new_page }
allow(pdf).to receive(:text_box)
pdf.number_pages '<page> <total>', page_filter: :all, total_pages: 10
expect(pdf).to have_received(:text_box).with('1 10', height: 50)
expect(pdf).to have_received(:text_box).with('2 10', height: 50)
end
end
context 'special page filter' do
context 'such as :odd' do
it 'increments the pages' do
3.times { pdf.start_new_page }
allow(pdf).to receive(:text_box)
pdf.number_pages '<page> <total>', page_filter: :odd
expect(pdf).to have_received(:text_box).with('1 3', height: 50)
expect(pdf).to have_received(:text_box).with('3 3', height: 50)
expect(pdf).to_not have_received(:text_box).with('2 3', height: 50)
end
end
context 'missing' do
it 'does not print any page numbers' do
3.times { pdf.start_new_page }
allow(pdf).to receive(:text_box)
pdf.number_pages '<page> <total>', page_filter: nil
expect(pdf).to_not have_received(:text_box)
end
end
end
context 'given both a special page filter and a start_count_at parameter' do
context 'such as :odd and 7' do
it 'increments the pages' do
3.times { pdf.start_new_page }
allow(pdf).to receive(:text_box)
pdf.number_pages '<page> <total>',
page_filter: :odd,
start_count_at: 5
expect(pdf).to_not have_received(:text_box).with('1 3', height: 50)
# page 1
expect(pdf).to have_received(:text_box).with('5 3', height: 50)
# page 2
expect(pdf).to_not have_received(:text_box).with('6 3', height: 50)
# page 3
expect(pdf).to have_received(:text_box).with('7 3', height: 50)
end
end
context 'some crazy proc and 2' do
it 'increments the pages' do
6.times { pdf.start_new_page }
options = {
page_filter: ->(p) { p != 2 && p != 5 },
start_count_at: 4
}
allow(pdf).to receive(:text_box)
pdf.number_pages '<page> <total>', options
# page 1
expect(pdf).to have_received(:text_box).with('4 6', height: 50)
# page 2
expect(pdf).to_not have_received(:text_box).with('5 6', height: 50)
# page 3
expect(pdf).to have_received(:text_box).with('6 6', height: 50)
# page 4
expect(pdf).to have_received(:text_box).with('7 6', height: 50)
# page 5
expect(pdf).to_not have_received(:text_box).with('8 6', height: 50)
# page 6
expect(pdf).to have_received(:text_box).with('9 6', height: 50)
end
end
end
context 'height option' do
before do
pdf.start_new_page
end
it 'with 10 height' do
allow(pdf).to receive(:text_box)
pdf.number_pages '<page> <total>', height: 10
expect(pdf).to have_received(:text_box).with('1 1', height: 10)
end
it 'with nil height' do
allow(pdf).to receive(:text_box)
pdf.number_pages '<page> <total>', height: nil
expect(pdf).to have_received(:text_box).with('1 1', height: nil)
end
it 'with no height' do
allow(pdf).to receive(:text_box)
pdf.number_pages '<page> <total>'
expect(pdf).to have_received(:text_box).with('1 1', height: 50)
end
end
end
describe '#page_match?' do
let(:pdf) do
described_class.new(skip_page_creation: true) do |pdf|
10.times { pdf.start_new_page }
end
end
it 'returns nil given no filter' do
expect(pdf.page_match?(:nil, 1)).to be_falsey
end
it 'must provide an :all filter' do
expect((1..pdf.page_count).all? { |i| pdf.page_match?(:all, i) })
.to eq true
end
it 'must provide an :odd filter' do
odd, even = (1..pdf.page_count).partition(&:odd?)
expect(odd.all? { |i| pdf.page_match?(:odd, i) }).to eq true
expect(even.any? { |i| pdf.page_match?(:odd, i) }).to be_falsey
end
it 'must be able to filter by an array of page numbers' do
fltr = [1, 2, 7]
expect((1..10).select { |i| pdf.page_match?(fltr, i) }).to eq([1, 2, 7])
end
it 'must be able to filter by a range of page numbers' do
fltr = 2..4
expect((1..10).select { |i| pdf.page_match?(fltr, i) }).to eq([2, 3, 4])
end
it 'must be able to filter by an arbitrary proc' do
fltr = ->(x) { x == 1 || (x % 3).zero? }
expect((1..10).select { |i| pdf.page_match?(fltr, i) })
.to eq([1, 3, 6, 9])
end
end
end
|