Class: Zip64FullTest

Inherits:
MiniTest::Test
  • Object
show all
Defined in:
lib/hotplate/gems/rubyzip-1.1.7/test/zip64_full_test.rb

Overview

test zip64 support for real, by actually exceeding the 32-bit size/offset limits this test does not, of course, run with the normal unit tests! ;)

Instance Method Summary collapse

Instance Method Details

#prepareTestFile(test_filename) ⇒ Object 



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# File 'lib/hotplate/gems/rubyzip-1.1.7/test/zip64_full_test.rb', line 15

def prepareTestFile(test_filename)
  ::File.delete(test_filename) if ::File.exist?(test_filename)
  return test_filename
end

#teardown ⇒ Object 



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# File 'lib/hotplate/gems/rubyzip-1.1.7/test/zip64_full_test.rb', line 11

def teardown
  ::Zip.reset!
end

#test_largeZipFile ⇒ Object 



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# File 'lib/hotplate/gems/rubyzip-1.1.7/test/zip64_full_test.rb', line 20

def test_largeZipFile
  ::Zip.write_zip64_support = true
  first_text = 'starting out small'
  last_text = 'this tests files starting after 4GB in the archive'
  test_filename = prepareTestFile('huge.zip')
  ::Zip::OutputStream.open(test_filename) do |io|
    io.put_next_entry('first_file.txt')
    io.write(first_text)

    # write just over 4GB (stored, so the zip file exceeds 4GB)
    buf = 'blah' * 16384
    io.put_next_entry('huge_file', nil, nil, ::Zip::Entry::STORED)
    65537.times { io.write(buf) }

    io.put_next_entry('last_file.txt')
    io.write(last_text)
  end

  ::Zip::File.open(test_filename) do |zf|
    assert_equal %w(first_file.txt huge_file last_file.txt), zf.entries.map(&:name)
    assert_equal first_text, zf.read('first_file.txt')
    assert_equal last_text, zf.read('last_file.txt')
  end

  # note: if this fails, be sure you have UnZip version 6.0 or newer
  # as this is the first version to support zip64 extensions
  # but some OSes (*cough* OSX) still bundle a 5.xx release
  assert system("unzip -t #{test_filename}"), "third-party zip validation failed"
end