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author | Jari Vetoniemi <jari.vetoniemi@indooratlas.com> | 2020-03-16 18:49:26 +0900 |
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committer | Jari Vetoniemi <jari.vetoniemi@indooratlas.com> | 2020-03-30 00:39:06 +0900 |
commit | fcbf63e62c627deae76c1b8cb8c0876c536ed811 (patch) | |
tree | 64cb17de3f41a2b6fef2368028fbd00349946994 /jni/ruby/lib/rubygems/package/tar_test_case.rb |
Fresh start
Diffstat (limited to 'jni/ruby/lib/rubygems/package/tar_test_case.rb')
-rw-r--r-- | jni/ruby/lib/rubygems/package/tar_test_case.rb | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/jni/ruby/lib/rubygems/package/tar_test_case.rb b/jni/ruby/lib/rubygems/package/tar_test_case.rb new file mode 100644 index 0000000..5253e32 --- /dev/null +++ b/jni/ruby/lib/rubygems/package/tar_test_case.rb @@ -0,0 +1,137 @@ +require 'rubygems/test_case' +require 'rubygems/package' + +## +# A test case for Gem::Package::Tar* classes + +class Gem::Package::TarTestCase < Gem::TestCase + + def ASCIIZ(str, length) + str + "\0" * (length - str.length) + end + + def SP(s) + s + " " + end + + def SP_Z(s) + s + " \0" + end + + def Z(s) + s + "\0" + end + + def assert_headers_equal(expected, actual) + expected = expected.to_s unless String === expected + actual = actual.to_s unless String === actual + + fields = %w[ + name 100 + mode 8 + uid 8 + gid 8 + size 12 + mtime 12 + checksum 8 + typeflag 1 + linkname 100 + magic 6 + version 2 + uname 32 + gname 32 + devmajor 8 + devminor 8 + prefix 155 + ] + + offset = 0 + + until fields.empty? do + name = fields.shift + length = fields.shift.to_i + + if name == "checksum" then + chksum_off = offset + offset += length + next + end + + assert_equal expected[offset, length], actual[offset, length], + "Field #{name} of the tar header differs." + + offset += length + end + + assert_equal expected[chksum_off, 8], actual[chksum_off, 8] + end + + def calc_checksum(header) + sum = header.unpack("C*").inject{|s,a| s + a} + SP(Z(to_oct(sum, 6))) + end + + def header(type, fname, dname, length, mode, mtime, checksum = nil) + checksum ||= " " * 8 + + arr = [ # struct tarfile_entry_posix + ASCIIZ(fname, 100), # char name[100]; ASCII + (Z unless filled) + Z(to_oct(mode, 7)), # char mode[8]; 0 padded, octal null + Z(to_oct(0, 7)), # char uid[8]; ditto + Z(to_oct(0, 7)), # char gid[8]; ditto + Z(to_oct(length, 11)), # char size[12]; 0 padded, octal, null + Z(to_oct(mtime, 11)), # char mtime[12]; 0 padded, octal, null + checksum, # char checksum[8]; 0 padded, octal, null, space + type, # char typeflag[1]; file: "0" dir: "5" + "\0" * 100, # char linkname[100]; ASCII + (Z unless filled) + "ustar\0", # char magic[6]; "ustar\0" + "00", # char version[2]; "00" + ASCIIZ("wheel", 32), # char uname[32]; ASCIIZ + ASCIIZ("wheel", 32), # char gname[32]; ASCIIZ + Z(to_oct(0, 7)), # char devmajor[8]; 0 padded, octal, null + Z(to_oct(0, 7)), # char devminor[8]; 0 padded, octal, null + ASCIIZ(dname, 155) # char prefix[155]; ASCII + (Z unless filled) + ] + + format = "C100C8C8C8C12C12C8CC100C6C2C32C32C8C8C155" + h = if RUBY_VERSION >= "1.9" then + arr.join + else + arr = arr.join("").split(//).map{|x| x[0]} + arr.pack format + end + ret = h + "\0" * (512 - h.size) + assert_equal(512, ret.size) + ret + end + + def tar_dir_header(name, prefix, mode, mtime) + h = header("5", name, prefix, 0, mode, mtime) + checksum = calc_checksum(h) + header("5", name, prefix, 0, mode, mtime, checksum) + end + + def tar_file_header(fname, dname, mode, length, mtime) + h = header("0", fname, dname, length, mode, mtime) + checksum = calc_checksum(h) + header("0", fname, dname, length, mode, mtime, checksum) + end + + def to_oct(n, pad_size) + "%0#{pad_size}o" % n + end + + def util_entry(tar) + io = TempIO.new tar + + header = Gem::Package::TarHeader.from io + + Gem::Package::TarReader::Entry.new header, io + end + + def util_dir_entry + util_entry tar_dir_header("foo", "bar", 0, Time.now) + end + +end + |