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test_gem_package_tar_writer.rb
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test_gem_package_tar_writer.rb
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# frozen_string_literal: true
require 'rubygems/package/tar_test_case'
require 'rubygems/package/tar_writer'
require 'minitest/mock'
class TestGemPackageTarWriter < Gem::Package::TarTestCase
def setup
super
# Setting `@default_source_date_epoch` to `nil` effectively resets the
# value used for `Gem.source_date_epoch` whenever `$SOURCE_DATE_EPOCH`
# is not set.
Gem.instance_variable_set(:'@default_source_date_epoch', nil)
@data = 'abcde12345'
@io = TempIO.new
@tar_writer = Gem::Package::TarWriter.new @io
@epoch = ENV["SOURCE_DATE_EPOCH"]
ENV["SOURCE_DATE_EPOCH"] = nil
end
def teardown
ENV["SOURCE_DATE_EPOCH"] = @epoch
@tar_writer.close unless @tar_writer.closed?
@io.close!
super
end
def test_add_file
Time.stub :now, Time.at(1458518157) do
@tar_writer.add_file 'x', 0644 do |f|
f.write 'a' * 10
end
assert_headers_equal(tar_file_header('x', '', 0644, 10, Time.now),
@io.string[0, 512])
end
assert_equal "aaaaaaaaaa#{"\0" * 502}", @io.string[512, 512]
assert_equal 1024, @io.pos
end
def test_add_file_source_date_epoch
ENV["SOURCE_DATE_EPOCH"] = "123456789"
Time.stub :now, Time.at(1458518157) do
@tar_writer.mkdir 'foo', 0644
assert_headers_equal tar_dir_header('foo', '', 0644, Time.at(ENV["SOURCE_DATE_EPOCH"].to_i).utc),
@io.string[0, 512]
end
end
def test_add_symlink
Time.stub :now, Time.at(1458518157) do
@tar_writer.add_symlink 'x', 'y', 0644
assert_headers_equal(tar_symlink_header('x', '', 0644, Time.now, 'y'),
@io.string[0, 512])
end
assert_equal 512, @io.pos
end
def test_add_symlink_source_date_epoch
ENV["SOURCE_DATE_EPOCH"] = "123456789"
Time.stub :now, Time.at(1458518157) do
@tar_writer.add_symlink 'x', 'y', 0644
assert_headers_equal(tar_symlink_header('x', '', 0644, Time.at(ENV["SOURCE_DATE_EPOCH"].to_i).utc, 'y'),
@io.string[0, 512])
end
end
def test_add_file_digest
digest_algorithms = Digest::SHA1.new, Digest::SHA512.new
Time.stub :now, Time.at(1458518157) do
digests = @tar_writer.add_file_digest 'x', 0644, digest_algorithms do |io|
io.write 'a' * 10
end
assert_equal '3495ff69d34671d1e15b33a63c1379fdedd3a32a',
digests['SHA1'].hexdigest
assert_equal '4714870aff6c97ca09d135834fdb58a6389a50c1' \
'1fef8ec4afef466fb60a23ac6b7a9c92658f14df' \
'4993d6b40a4e4d8424196afc347e97640d68de61' \
'e1cf14b0',
digests['SHA512'].hexdigest
assert_headers_equal(tar_file_header('x', '', 0644, 10, Time.now),
@io.string[0, 512])
end
assert_equal "aaaaaaaaaa#{"\0" * 502}", @io.string[512, 512]
assert_equal 1024, @io.pos
end
def test_add_file_digest_multiple
digest_algorithms = [Digest::SHA1.new, Digest::SHA512.new]
Time.stub :now, Time.at(1458518157) do
digests = @tar_writer.add_file_digest 'x', 0644, digest_algorithms do |io|
io.write 'a' * 10
end
assert_equal '3495ff69d34671d1e15b33a63c1379fdedd3a32a',
digests['SHA1'].hexdigest
assert_equal '4714870aff6c97ca09d135834fdb58a6389a50c1' \
'1fef8ec4afef466fb60a23ac6b7a9c92658f14df' \
'4993d6b40a4e4d8424196afc347e97640d68de61' \
'e1cf14b0',
digests['SHA512'].hexdigest
assert_headers_equal(tar_file_header('x', '', 0644, 10, Time.now),
@io.string[0, 512])
end
assert_equal "aaaaaaaaaa#{"\0" * 502}", @io.string[512, 512]
assert_equal 1024, @io.pos
end
def test_add_file_signer
skip 'openssl is missing' unless Gem::HAVE_OPENSSL
signer = Gem::Security::Signer.new PRIVATE_KEY, [PUBLIC_CERT]
Time.stub :now, Time.at(1458518157) do
@tar_writer.add_file_signed 'x', 0644, signer do |io|
io.write 'a' * 10
end
assert_headers_equal(tar_file_header('x', '', 0644, 10, Time.now),
@io.string[0, 512])
assert_equal "aaaaaaaaaa#{"\0" * 502}", @io.string[512, 512]
digest = signer.digest_algorithm.new
digest.update 'a' * 10
signature = signer.sign digest.digest
assert_headers_equal(tar_file_header('x.sig', '', 0444, signature.length,
Time.now),
@io.string[1024, 512])
assert_equal "#{signature}#{"\0" * (512 - signature.length)}",
@io.string[1536, 512]
assert_equal 2048, @io.pos
end
end
def test_add_file_signer_empty
signer = Gem::Security::Signer.new nil, nil
Time.stub :now, Time.at(1458518157) do
@tar_writer.add_file_signed 'x', 0644, signer do |io|
io.write 'a' * 10
end
assert_headers_equal(tar_file_header('x', '', 0644, 10, Time.now),
@io.string[0, 512])
end
assert_equal "aaaaaaaaaa#{"\0" * 502}", @io.string[512, 512]
assert_equal 1024, @io.pos
end
def test_add_file_simple
Time.stub :now, Time.at(1458518157) do
@tar_writer.add_file_simple 'x', 0644, 10 do |io|
io.write "a" * 10
end
assert_headers_equal(tar_file_header('x', '', 0644, 10, Time.now),
@io.string[0, 512])
end
assert_equal "aaaaaaaaaa#{"\0" * 502}", @io.string[512, 512]
assert_equal 1024, @io.pos
end
def test_add_file_simple_source_date_epoch
ENV["SOURCE_DATE_EPOCH"] = "123456789"
Time.stub :now, Time.at(1458518157) do
@tar_writer.add_file_simple 'x', 0644, 10 do |io|
io.write "a" * 10
end
assert_headers_equal(tar_file_header('x', '', 0644, 10, Time.at(ENV["SOURCE_DATE_EPOCH"].to_i).utc),
@io.string[0, 512])
end
end
def test_add_file_simple_padding
Time.stub :now, Time.at(1458518157) do
@tar_writer.add_file_simple 'x', 0, 100
assert_headers_equal tar_file_header('x', '', 0, 100, Time.now),
@io.string[0, 512]
end
assert_equal "\0" * 512, @io.string[512, 512]
end
def test_add_file_simple_data
@tar_writer.add_file_simple("lib/foo/bar", 0, 10) {|f| f.write @data }
@tar_writer.flush
assert_equal @data + ("\0" * (512 - @data.size)),
@io.string[512, 512]
end
def test_add_file_simple_size
assert_raises Gem::Package::TarWriter::FileOverflow do
@tar_writer.add_file_simple("lib/foo/bar", 0, 10) do |io|
io.write "1" * 11
end
end
end
def test_close
@tar_writer.close
assert_equal "\0" * 1024, @io.string
e = assert_raises IOError do
@tar_writer.close
end
assert_equal 'closed Gem::Package::TarWriter', e.message
e = assert_raises IOError do
@tar_writer.flush
end
assert_equal 'closed Gem::Package::TarWriter', e.message
e = assert_raises IOError do
@tar_writer.add_file 'x', 0
end
assert_equal 'closed Gem::Package::TarWriter', e.message
e = assert_raises IOError do
@tar_writer.add_file_simple 'x', 0, 0
end
assert_equal 'closed Gem::Package::TarWriter', e.message
e = assert_raises IOError do
@tar_writer.mkdir 'x', 0
end
assert_equal 'closed Gem::Package::TarWriter', e.message
end
def test_mkdir
Time.stub :now, Time.at(1458518157) do
@tar_writer.mkdir 'foo', 0644
assert_headers_equal tar_dir_header('foo', '', 0644, Time.now),
@io.string[0, 512]
assert_equal 512, @io.pos
end
end
def test_mkdir_source_date_epoch
ENV["SOURCE_DATE_EPOCH"] = "123456789"
Time.stub :now, Time.at(1458518157) do
@tar_writer.mkdir 'foo', 0644
assert_headers_equal tar_dir_header('foo', '', 0644, Time.at(ENV["SOURCE_DATE_EPOCH"].to_i).utc),
@io.string[0, 512]
end
end
def test_split_name
assert_equal ['b' * 100, 'a' * 155],
@tar_writer.split_name("#{'a' * 155}/#{'b' * 100}")
assert_equal ["#{'qwer/' * 19}bla", 'a' * 151],
@tar_writer.split_name("#{'a' * 151}/#{'qwer/' * 19}bla")
names = [
([''] + ['123456789'] * 9 + ['1234567890']).join('/'), # 101 bytes (several pieces)
(['123456789'] * 9 + ['1234567890'] + ['']).join('/'), # 101 bytes (several pieces)
'/' * 99,
'/' * 100,
'/' * 101,
'/' * 102,
]
names.each do |name|
newname, prefix = @tar_writer.split_name(name)
assert(!(newname.empty?), "split_name() returned empty name")
assert(newname.bytesize <= 100, "split_name() returned name longer than 100 bytes: '#{newname}' for '#{name}'")
assert(prefix.bytesize <= 155, "split_name() returned prefix longer than 155 bytes: '#{prefix}' for '#{name}'")
newname = [prefix, newname].join('/') unless prefix.empty?
assert_equal name, newname
end
end
def test_split_name_too_long_name
name = File.join 'a', 'b' * 100
assert_equal ['b' * 100, 'a'], @tar_writer.split_name(name)
name = File.join 'a', 'b' * 101
exception = assert_raises Gem::Package::TooLongFileName do
@tar_writer.split_name name
end
assert_includes exception.message, name
# note, GNU tar 1.28 is unable to handle this case too,
# tested with "tar --format=ustar -cPf /tmp/foo.tartar -- /aaaaaa....a"
name = '/' + 'a' * 100
exception = assert_raises Gem::Package::TooLongFileName do
@tar_writer.split_name name
end
assert_includes exception.message, name
end
def test_split_name_too_long_prefix
name = File.join 'a' * 155, 'b'
assert_equal ['b', 'a' * 155], @tar_writer.split_name(name)
name = File.join 'a' * 156, 'b'
exception = assert_raises Gem::Package::TooLongFileName do
@tar_writer.split_name name
end
assert_includes exception.message, name
end
def test_split_name_too_long_total
name = 'a' * 257
exception = assert_raises Gem::Package::TooLongFileName do
@tar_writer.split_name name
end
assert_includes exception.message, name
end
end