611 lines
18 KiB
Ruby
611 lines
18 KiB
Ruby
#--
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# Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
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# All rights reserved.
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# See LICENSE.txt for permissions.
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#++
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require 'test/unit'
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require 'stringio'
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require 'fileutils'
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require 'rubygems'
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require 'rubygems/package'
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class File
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# straight from setup.rb
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def self.dir?(path)
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# for corrupted windows stat()
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File.directory?((path[-1,1] == '/') ? path : path + '/')
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end
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def self.read_b(name)
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File.open(name, "rb"){|f| f.read}
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end
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end
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class TarTestCase < Test::Unit::TestCase
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undef_method :default_test if instance_methods.include? 'default_test' or
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instance_methods.include? :default_test
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def assert_headers_equal(h1, h2)
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fields = %w[name 100 mode 8 uid 8 gid 8 size 12 mtime 12 checksum 8
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typeflag 1 linkname 100 magic 6 version 2 uname 32
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gname 32 devmajor 8 devminor 8 prefix 155]
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offset = 0
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until fields.empty?
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name = fields.shift
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length = fields.shift.to_i
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if name == "checksum"
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chksum_off = offset
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offset += length
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next
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end
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assert_equal(h1[offset, length], h2[offset, length],
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"Field #{name} of the tar header differs.")
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offset += length
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end
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assert_equal(h1[chksum_off, 8], h2[chksum_off, 8])
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end
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def tar_file_header(fname, dname, mode, length)
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h = header("0", fname, dname, length, mode)
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checksum = calc_checksum(h)
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header("0", fname, dname, length, mode, checksum)
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end
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def tar_dir_header(name, prefix, mode)
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h = header("5", name, prefix, 0, mode)
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checksum = calc_checksum(h)
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header("5", name, prefix, 0, mode, checksum)
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end
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def header(type, fname, dname, length, mode, checksum = nil)
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checksum ||= " " * 8
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arr = [ # struct tarfile_entry_posix
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ASCIIZ(fname, 100), # char name[100]; ASCII + (Z unless filled)
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Z(to_oct(mode, 7)), # char mode[8]; 0 padded, octal null
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Z(to_oct(0, 7)), # char uid[8]; ditto
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Z(to_oct(0, 7)), # char gid[8]; ditto
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Z(to_oct(length, 11)), # char size[12]; 0 padded, octal, null
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Z(to_oct(0, 11)), # char mtime[12]; 0 padded, octal, null
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checksum, # char checksum[8]; 0 padded, octal, null, space
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type, # char typeflag[1]; file: "0" dir: "5"
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"\0" * 100, # char linkname[100]; ASCII + (Z unless filled)
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"ustar\0", # char magic[6]; "ustar\0"
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"00", # char version[2]; "00"
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ASCIIZ("wheel", 32), # char uname[32]; ASCIIZ
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ASCIIZ("wheel", 32), # char gname[32]; ASCIIZ
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Z(to_oct(0, 7)), # char devmajor[8]; 0 padded, octal, null
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Z(to_oct(0, 7)), # char devminor[8]; 0 padded, octal, null
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ASCIIZ(dname, 155) # char prefix[155]; ASCII + (Z unless filled)
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]
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format = "C100C8C8C8C12C12C8CC100C6C2C32C32C8C8C155"
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h = if RUBY_VERSION >= "1.9" then
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arr.join
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else
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arr = arr.join("").split(//).map{|x| x[0]}
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arr.pack format
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end
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ret = h + "\0" * (512 - h.size)
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assert_equal(512, ret.size)
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ret
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end
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def calc_checksum(header)
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sum = header.unpack("C*").inject{|s,a| s + a}
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SP(Z(to_oct(sum, 6)))
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end
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def to_oct(n, pad_size)
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"%0#{pad_size}o" % n
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end
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def ASCIIZ(str, length)
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str + "\0" * (length - str.length)
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end
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def SP(s)
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s + " "
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end
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def Z(s)
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s + "\0"
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end
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def SP_Z(s)
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s + " \0"
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end
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end
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class TestTarHeader < TarTestCase
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def test_arguments_are_checked
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e = ArgumentError
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gpth = Gem::Package::TarHeader
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assert_raises(e) { gpth.new :name=>"", :size=>"", :mode=>"" }
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assert_raises(e) { gpth.new :name=>"", :size=>"", :prefix=>"" }
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assert_raises(e) { gpth.new :name=>"", :prefix=>"", :mode=>"" }
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assert_raises(e) { gpth.new :prefix=>"", :size=>"", :mode=>"" }
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end
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def test_basic_headers
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header = Gem::Package::TarHeader.new(:name => "bla", :mode => 012345,
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:size => 10, :prefix => "").to_s
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assert_headers_equal(tar_file_header("bla", "", 012345, 10), header.to_s)
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header = Gem::Package::TarHeader.new(:name => "bla", :mode => 012345,
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:size => 0, :prefix => "",
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:typeflag => "5" ).to_s
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assert_headers_equal(tar_dir_header("bla", "", 012345), header)
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end
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def test_long_name_works
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header = Gem::Package::TarHeader.new(:name => "a" * 100, :mode => 012345,
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:size => 10, :prefix => "").to_s
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assert_headers_equal(tar_file_header("a" * 100, "", 012345, 10), header)
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header = Gem::Package::TarHeader.new(:name => "a" * 100, :mode => 012345,
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:size => 10, :prefix => "bb" * 60).to_s
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assert_headers_equal(tar_file_header("a" * 100, "bb" * 60, 012345, 10),
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header)
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end
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def test_new_from_stream
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header = tar_file_header("a" * 100, "", 012345, 10)
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h = nil
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header = StringIO.new header
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assert_nothing_raised{ h = Gem::Package::TarHeader.new_from_stream header }
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assert_equal("a" * 100, h.name)
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assert_equal(012345, h.mode)
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assert_equal(10, h.size)
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assert_equal("", h.prefix)
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assert_equal("ustar", h.magic)
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end
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end
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class TestTarInput < TarTestCase
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# Sometimes the setgid bit doesn't take. Don't know if this
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# is a problem on all systems, or just some. But for now, we
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# will ignore it in the tests.
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SETGID_BIT = 02000
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def setup
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FileUtils.mkdir_p "data__"
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inner_tar = tar_file_header("bla", "", 0612, 10)
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inner_tar += "0123456789" + "\0" * 502
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inner_tar += tar_file_header("foo", "", 0636, 5)
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inner_tar += "01234" + "\0" * 507
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inner_tar += tar_dir_header("__dir__", "", 0600)
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inner_tar += "\0" * 1024
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str = StringIO.new ""
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begin
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os = Zlib::GzipWriter.new str
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os.write inner_tar
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ensure
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os.finish
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end
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str.rewind
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File.open("data__/bla.tar", "wb") do |f|
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f.write tar_file_header("data.tar.gz", "", 0644, str.string.size)
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f.write str.string
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f.write "\0" * ((512 - (str.string.size % 512)) % 512 )
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@spec = Gem::Specification.new do |spec|
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spec.author = "Mauricio :)"
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end
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meta = @spec.to_yaml
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f.write tar_file_header("metadata", "", 0644, meta.size)
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f.write meta + "\0" * (1024 - meta.size)
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f.write "\0" * 1024
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end
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@file = "data__/bla.tar"
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@entry_names = %w{bla foo __dir__}
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@entry_sizes = [10, 5, 0]
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#FIXME: are these modes system dependent?
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@entry_modes = [0100612, 0100636, 040600]
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@entry_files = %w{data__/bla data__/foo}
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@entry_contents = %w[0123456789 01234]
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end
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def teardown
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# FileUtils.rm_rf "data__"
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end
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def test_each_works
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Gem::Package::TarInput.open(@file) do |is|
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count = 0
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is.each_with_index do |entry, i|
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count = i
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assert_kind_of(Gem::Package::TarReader::Entry, entry)
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assert_equal(@entry_names[i], entry.name)
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assert_equal(@entry_sizes[i], entry.size)
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end
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assert_equal 2, count
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assert_equal @spec, is.metadata
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end
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end
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def test_extract_entry_works
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Gem::Package::TarInput.open(@file) do |is|
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assert_equal @spec, is.metadata
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count = 0
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is.each_with_index do |entry, i|
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count = i
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is.extract_entry "data__", entry
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name = File.join("data__", entry.name)
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if entry.is_directory?
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assert File.dir?(name)
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else
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assert File.file?(name)
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assert_equal(@entry_sizes[i], File.stat(name).size)
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#FIXME: win32? !!
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end
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unless ::Config::CONFIG["arch"] =~ /msdos|win32/i
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assert_equal(@entry_modes[i],
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File.stat(name).mode & (~SETGID_BIT))
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end
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end
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assert_equal 2, count
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end
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@entry_files.each_with_index do |x, i|
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assert(File.file?(x))
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assert_equal(@entry_contents[i], File.read_b(x))
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end
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end
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end
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class TestTarOutput < TarTestCase
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def setup
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FileUtils.mkdir_p "data__", :verbose=>false
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@file = "data__/bla2.tar"
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end
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def teardown
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FileUtils.rm_rf "data__"
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end
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def test_file_looks_good
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Gem::Package::TarOutput.open(@file) do |os|
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os.metadata = "bla".to_yaml
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end
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f = File.open(@file, "rb")
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Gem::Package::TarReader.new(f) do |is|
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i = 0
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is.each do |entry|
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case i
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when 0
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assert_equal("data.tar.gz", entry.name)
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when 1
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assert_equal("metadata.gz", entry.name)
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gzis = Zlib::GzipReader.new entry
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assert_equal("bla".to_yaml, gzis.read)
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gzis.close
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end
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i += 1
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end
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assert_equal(2, i)
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end
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ensure
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f.close
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end
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end
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class TestTarReader < TarTestCase
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def test_eof_works
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str = tar_file_header("bar", "baz", 0644, 0)
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Gem::Package::TarReader.new(StringIO.new(str)) do |is|
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is.each_entry do |entry|
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assert_kind_of(Gem::Package::TarReader::Entry, entry)
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data = entry.read
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assert_equal(nil, data)
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assert_equal(nil, entry.read(10))
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assert_equal(nil, entry.read)
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assert_equal(nil, entry.getc)
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assert_equal(true, entry.eof?)
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end
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end
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str = tar_dir_header("foo", "bar", 012345)
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Gem::Package::TarReader.new(StringIO.new(str)) do |is|
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is.each_entry do |entry|
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assert_kind_of(Gem::Package::TarReader::Entry, entry)
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data = entry.read
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assert_equal(nil, data)
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assert_equal(nil, entry.read(10))
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assert_equal(nil, entry.read)
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assert_equal(nil, entry.getc)
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assert_equal(true, entry.eof?)
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end
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end
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str = tar_dir_header("foo", "bar", 012345)
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str += tar_file_header("bar", "baz", 0644, 0)
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str += tar_file_header("bar", "baz", 0644, 0)
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Gem::Package::TarReader.new(StringIO.new(str)) do |is|
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is.each_entry do |entry|
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assert_kind_of(Gem::Package::TarReader::Entry, entry)
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data = entry.read
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assert_equal(nil, data)
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assert_equal(nil, entry.read(10))
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assert_equal(nil, entry.read)
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assert_equal(nil, entry.getc)
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assert_equal(true, entry.eof?)
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end
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end
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end
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def test_multiple_entries
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str = tar_file_header("lib/foo", "", 010644, 10) + "\0" * 512
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str += tar_file_header("bar", "baz", 0644, 0)
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str += tar_dir_header("foo", "bar", 012345)
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str += "\0" * 1024
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names = %w[lib/foo bar foo]
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prefixes = ["", "baz", "bar"]
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modes = [010644, 0644, 012345]
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sizes = [10, 0, 0]
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isdir = [false, false, true]
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isfile = [true, true, false]
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Gem::Package::TarReader.new(StringIO.new(str)) do |is|
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i = 0
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is.each_entry do |entry|
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assert_kind_of(Gem::Package::TarReader::Entry, entry)
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assert_equal(names[i], entry.name)
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assert_equal(prefixes[i], entry.prefix)
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assert_equal(sizes[i], entry.size)
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assert_equal(modes[i], entry.mode)
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assert_equal(isdir[i], entry.is_directory?)
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assert_equal(isfile[i], entry.is_file?)
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if prefixes[i] != ""
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assert_equal(File.join(prefixes[i], names[i]),
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entry.full_name)
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else
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assert_equal(names[i], entry.name)
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end
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i += 1
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end
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assert_equal(names.size, i)
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end
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end
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def test_read_works
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contents = ('a'..'z').inject(""){|s,x| s << x * 100}
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str = tar_file_header("lib/foo", "", 010644, contents.size) + contents
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str += "\0" * (512 - (str.size % 512))
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Gem::Package::TarReader.new(StringIO.new(str)) do |is|
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is.each_entry do |entry|
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assert_kind_of(Gem::Package::TarReader::Entry, entry)
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data = entry.read(3000) # bigger than contents.size
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assert_equal(contents, data)
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assert_equal(true, entry.eof?)
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end
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end
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Gem::Package::TarReader.new(StringIO.new(str)) do |is|
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is.each_entry do |entry|
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assert_kind_of(Gem::Package::TarReader::Entry, entry)
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data = entry.read(100)
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(entry.size - data.size).times {|i| data << entry.getc.chr }
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assert_equal(contents, data)
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assert_equal(nil, entry.read(10))
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assert_equal(true, entry.eof?)
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end
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end
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Gem::Package::TarReader.new(StringIO.new(str)) do |is|
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is.each_entry do |entry|
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assert_kind_of(Gem::Package::TarReader::Entry, entry)
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data = entry.read
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assert_equal(contents, data)
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assert_equal(nil, entry.read(10))
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assert_equal(nil, entry.read)
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assert_equal(nil, entry.getc)
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assert_equal(true, entry.eof?)
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end
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end
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end
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def test_rewind_entry_works
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content = ('a'..'z').to_a.join(" ")
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str = tar_file_header("lib/foo", "", 010644, content.size) + content +
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"\0" * (512 - content.size)
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str << "\0" * 1024
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Gem::Package::TarReader.new(StringIO.new(str)) do |is|
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is.each_entry do |entry|
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3.times do
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entry.rewind
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assert_equal(content, entry.read)
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assert_equal(content.size, entry.pos)
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end
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end
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end
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end
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def test_rewind_works
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content = ('a'..'z').to_a.join(" ")
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str = tar_file_header("lib/foo", "", 010644, content.size) + content +
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"\0" * (512 - content.size)
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str << "\0" * 1024
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Gem::Package::TarReader.new(StringIO.new(str)) do |is|
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3.times do
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is.rewind
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i = 0
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is.each_entry do |entry|
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assert_equal(content, entry.read)
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i += 1
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end
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assert_equal(1, i)
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end
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end
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end
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end
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class TestTarWriter < TarTestCase
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class DummyIO
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attr_reader :data
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def initialize
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@data = ""
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end
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def write(dat)
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data << dat
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dat.size
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end
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def reset
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@data = ""
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end
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end
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def setup
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@data = "a" * 10
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@dummyos = DummyIO.new
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@os = Gem::Package::TarWriter.new(@dummyos)
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end
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def teardown
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@os.close
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end
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def test_add_file
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dummyos = StringIO.new
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class << dummyos
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def method_missing(meth, *a)
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self.string.send(meth, *a)
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end
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end
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content1 = ('a'..'z').to_a.join("") # 26
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content2 = ('aa'..'zz').to_a.join("") # 1352
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Gem::Package::TarWriter.new(dummyos) do |os|
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os.add_file("lib/foo/bar", 0644) {|f| f.write "a" * 10 }
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os.add_file("lib/bar/baz", 0644) {|f| f.write content1 }
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os.add_file("lib/bar/baz", 0644) {|f| f.write content2 }
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os.add_file("lib/bar/baz", 0644) {|f| }
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end
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assert_headers_equal(tar_file_header("lib/foo/bar", "", 0644, 10),
|
|
dummyos[0,512])
|
|
assert_equal("a" * 10 + "\0" * 502, dummyos[512,512])
|
|
offset = 512 * 2
|
|
[content1, content2, ""].each do |data|
|
|
assert_headers_equal(tar_file_header("lib/bar/baz", "", 0644,
|
|
data.size),
|
|
dummyos[offset,512])
|
|
offset += 512
|
|
until !data || data == ""
|
|
chunk = data[0,512]
|
|
data[0,512] = ""
|
|
assert_equal(chunk + "\0" * (512-chunk.size),
|
|
dummyos[offset,512])
|
|
offset += 512
|
|
end
|
|
end
|
|
assert_equal("\0" * 1024, dummyos[offset,1024])
|
|
end
|
|
|
|
def test_add_file_simple
|
|
@dummyos.reset
|
|
Gem::Package::TarWriter.new(@dummyos) do |os|
|
|
os.add_file_simple("lib/foo/bar", 0644, 10) {|f| f.write "a" * 10 }
|
|
os.add_file_simple("lib/bar/baz", 0644, 100) {|f| f.write "fillme"}
|
|
end
|
|
assert_headers_equal(tar_file_header("lib/foo/bar", "", 0644, 10),
|
|
@dummyos.data[0,512])
|
|
assert_equal("a" * 10 + "\0" * 502, @dummyos.data[512,512])
|
|
assert_headers_equal(tar_file_header("lib/bar/baz", "", 0644, 100),
|
|
@dummyos.data[512*2,512])
|
|
assert_equal("fillme" + "\0" * 506, @dummyos.data[512*3,512])
|
|
assert_equal("\0" * 512, @dummyos.data[512*4, 512])
|
|
assert_equal("\0" * 512, @dummyos.data[512*5, 512])
|
|
end
|
|
|
|
def test_add_file_tests_seekability
|
|
assert_raises(Gem::Package::NonSeekableIO) do
|
|
@os.add_file("libdfdsfd", 0644) {|f| }
|
|
end
|
|
end
|
|
|
|
def test_file_name_is_split_correctly
|
|
# test insane file lengths, and
|
|
# a{100}/b{155}, etc
|
|
@dummyos.reset
|
|
names = ["a" * 155 + '/' + "b" * 100, "a" * 151 + "/" + ("qwer/" * 19) + "bla" ]
|
|
o_names = ["b" * 100, "qwer/" * 19 + "bla"]
|
|
o_prefixes = ["a" * 155, "a" * 151]
|
|
names.each {|name| @os.add_file_simple(name, 0644, 10) { } }
|
|
o_names.each_with_index do |nam, i|
|
|
assert_headers_equal(tar_file_header(nam, o_prefixes[i], 0644, 10),
|
|
@dummyos.data[2*i*512,512])
|
|
end
|
|
assert_raises(Gem::Package::TooLongFileName) do
|
|
@os.add_file_simple(File.join("a" * 152, "b" * 10, "a" * 92), 0644,10) {}
|
|
end
|
|
assert_raises(Gem::Package::TooLongFileName) do
|
|
@os.add_file_simple(File.join("a" * 162, "b" * 10), 0644,10) {}
|
|
end
|
|
assert_raises(Gem::Package::TooLongFileName) do
|
|
@os.add_file_simple(File.join("a" * 10, "b" * 110), 0644,10) {}
|
|
end
|
|
end
|
|
|
|
def test_file_size_is_checked
|
|
@dummyos.reset
|
|
assert_raises(Gem::Package::TarWriter::FileOverflow) do
|
|
@os.add_file_simple("lib/foo/bar", 0644, 10) {|f| f.write "1" * 100}
|
|
end
|
|
assert_nothing_raised do
|
|
@os.add_file_simple("lib/foo/bar", 0644, 10) {|f| }
|
|
end
|
|
end
|
|
|
|
def test_write_data
|
|
@dummyos.reset
|
|
@os.add_file_simple("lib/foo/bar", 0644, 10) { |f| f.write @data }
|
|
@os.flush
|
|
assert_equal(@data + ("\0" * (512-@data.size)),
|
|
@dummyos.data[512,512])
|
|
end
|
|
|
|
def test_write_header
|
|
@dummyos.reset
|
|
@os.add_file_simple("lib/foo/bar", 0644, 0) { |f| }
|
|
@os.flush
|
|
assert_headers_equal(tar_file_header("lib/foo/bar", "", 0644, 0),
|
|
@dummyos.data[0,512])
|
|
@dummyos.reset
|
|
@os.mkdir("lib/foo", 0644)
|
|
assert_headers_equal(tar_dir_header("lib/foo", "", 0644),
|
|
@dummyos.data[0,512])
|
|
@os.mkdir("lib/bar", 0644)
|
|
assert_headers_equal(tar_dir_header("lib/bar", "", 0644),
|
|
@dummyos.data[512*1,512])
|
|
end
|
|
|
|
def test_write_operations_fail_after_closed
|
|
@dummyos.reset
|
|
@os.add_file_simple("sadd", 0644, 20) { |f| }
|
|
@os.close
|
|
assert_raises(Gem::Package::ClosedIO) { @os.flush }
|
|
assert_raises(Gem::Package::ClosedIO) { @os.add_file("dfdsf", 0644){} }
|
|
assert_raises(Gem::Package::ClosedIO) { @os.mkdir "sdfdsf", 0644 }
|
|
end
|
|
|
|
end
|
|
|