Move spec/rubyspec to spec/ruby for consistency

* Other ruby implementations use the spec/ruby directory.
  [Misc #13792] [ruby-core:82287]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

spec/ruby/library/zlib/adler32_spec.rb

@@ -0,0 +1,46 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require 'zlib'
+
+describe "Zlib.adler32" do
+  it "calculates Adler checksum for string" do
+    Zlib.adler32("").should == 1
+    Zlib.adler32(" ").should == 2162721
+    Zlib.adler32("123456789").should == 152961502
+    Zlib.adler32("!@#\{$\}%^&**()").should == 365495023
+    Zlib.adler32("to be or not to be" * 22).should == 3979904837
+    Zlib.adler32("0").should == 3211313
+    Zlib.adler32((2**32).to_s).should == 193331739
+    Zlib.adler32((2**64).to_s).should == 723452953
+  end
+
+  it "calculates Adler checksum for string and initial Adler value" do
+    test_string = "This is a test string! How exciting!%?"
+    Zlib.adler32(test_string, 0).should == 63900955
+    Zlib.adler32(test_string, 1).should == 66391324
+    Zlib.adler32(test_string, 2**8).should == 701435419
+    Zlib.adler32(test_string, 2**16).should == 63966491
+    lambda { Zlib.adler32(test_string, 2**128) }.should raise_error(RangeError)
+  end
+
+  it "calculates the Adler checksum for string and initial Adler value for Bignums" do
+    test_string = "This is a test string! How exciting!%?"
+    Zlib.adler32(test_string, 2**30).should == 1137642779
+  end
+
+  it "assumes that the initial value is given to adler, if adler is omitted" do
+    orig_crc = Zlib.adler32
+    Zlib.adler32("").should == Zlib.adler32("", orig_crc)
+    Zlib.adler32(" ").should == Zlib.adler32(" ", orig_crc)
+    Zlib.adler32("123456789").should == Zlib.adler32("123456789", orig_crc)
+    Zlib.adler32("!@#\{$\}%^&**()").should == Zlib.adler32("!@#\{$\}%^&**()", orig_crc)
+    Zlib.adler32("to be or not to be" * 22).should == Zlib.adler32("to be or not to be" * 22, orig_crc)
+    Zlib.adler32("0").should == Zlib.adler32("0", orig_crc)
+    Zlib.adler32((2**32).to_s).should == Zlib.adler32((2**32).to_s, orig_crc)
+    Zlib.adler32((2**64).to_s).should == Zlib.adler32((2**64).to_s, orig_crc)
+  end
+
+  it "it returns the CRC initial value, if string is omitted" do
+    Zlib.adler32.should == 1
+  end
+
+end

spec/ruby/library/zlib/crc32_spec.rb

@@ -0,0 +1,52 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require 'zlib'
+
+describe "Zlib.crc32" do
+  it "calculates CRC checksum for string" do
+    Zlib.crc32("").should == 0
+    Zlib.crc32(" ").should == 3916222277
+    Zlib.crc32("123456789").should == 3421780262
+    Zlib.crc32("!@#\{$\}%^&**()").should == 2824518887
+    Zlib.crc32("to be or not to be" * 22).should == 1832379978
+    Zlib.crc32("0").should == 4108050209
+    Zlib.crc32((2**32).to_s).should == 3267533297
+    Zlib.crc32((2**64).to_s).should == 653721760
+  end
+
+  it "calculates CRC checksum for string and initial CRC value" do
+    test_string = "This is a test string! How exciting!%?"
+    # Zlib.crc32(test_string, -2**28).should == 3230195786
+    # Zlib.crc32(test_string, -2**20).should == 2770207303
+    # Zlib.crc32(test_string, -2**16).should == 2299432960
+    # Zlib.crc32(test_string, -2**8).should == 861809849
+    # Zlib.crc32(test_string, -1).should == 2170124077
+    Zlib.crc32(test_string, 0).should == 3864990561
+    Zlib.crc32(test_string, 1).should == 1809313411
+    Zlib.crc32(test_string, 2**8).should == 1722745982
+    Zlib.crc32(test_string, 2**16).should == 1932511220
+    lambda { Zlib.crc32(test_string, 2**128) }.should raise_error(RangeError)
+  end
+
+  it "calculates the CRC checksum for string and initial CRC value for Bignums" do
+    test_string = "This is a test string! How exciting!%?"
+    # Zlib.crc32(test_string, -2**30).should == 277228695
+    Zlib.crc32(test_string, 2**30).should == 46597132
+  end
+
+  it "assumes that the initial value is given to crc, if crc is omitted" do
+    orig_crc = Zlib.crc32
+    Zlib.crc32("").should == Zlib.crc32("", orig_crc)
+    Zlib.crc32(" ").should == Zlib.crc32(" ", orig_crc)
+    Zlib.crc32("123456789").should == Zlib.crc32("123456789", orig_crc)
+    Zlib.crc32("!@#\{$\}%^&**()").should == Zlib.crc32("!@#\{$\}%^&**()", orig_crc)
+    Zlib.crc32("to be or not to be" * 22).should == Zlib.crc32("to be or not to be" * 22, orig_crc)
+    Zlib.crc32("0").should == Zlib.crc32("0", orig_crc)
+    Zlib.crc32((2**32).to_s).should == Zlib.crc32((2**32).to_s, orig_crc)
+    Zlib.crc32((2**64).to_s).should == Zlib.crc32((2**64).to_s, orig_crc)
+  end
+
+  it "it returns the CRC initial value, if string is omitted" do
+    Zlib.crc32.should == 0
+  end
+
+end

spec/ruby/library/zlib/crc_table_spec.rb

@@ -0,0 +1,75 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require "zlib"
+
+describe "Zlib.crc_table" do
+
+  it "returns the same value as zlib's get_crc_table()" do
+    Zlib.crc_table.should == [
+      0, 1996959894, 3993919788, 2567524794,
+      124634137, 1886057615, 3915621685, 2657392035,
+      249268274, 2044508324, 3772115230, 2547177864,
+      162941995, 2125561021, 3887607047, 2428444049,
+      498536548, 1789927666, 4089016648, 2227061214,
+      450548861, 1843258603, 4107580753, 2211677639,
+      325883990, 1684777152, 4251122042, 2321926636,
+      335633487, 1661365465, 4195302755, 2366115317,
+      997073096, 1281953886, 3579855332, 2724688242,
+      1006888145, 1258607687, 3524101629, 2768942443,
+      901097722, 1119000684, 3686517206, 2898065728,
+      853044451, 1172266101, 3705015759, 2882616665,
+      651767980, 1373503546, 3369554304, 3218104598,
+      565507253, 1454621731, 3485111705, 3099436303,
+      671266974, 1594198024, 3322730930, 2970347812,
+      795835527, 1483230225, 3244367275, 3060149565,
+      1994146192, 31158534, 2563907772, 4023717930,
+      1907459465, 112637215, 2680153253, 3904427059,
+      2013776290, 251722036, 2517215374, 3775830040,
+      2137656763, 141376813, 2439277719, 3865271297,
+      1802195444, 476864866, 2238001368, 4066508878,
+      1812370925, 453092731, 2181625025, 4111451223,
+      1706088902, 314042704, 2344532202, 4240017532,
+      1658658271, 366619977, 2362670323, 4224994405,
+      1303535960, 984961486, 2747007092, 3569037538,
+      1256170817, 1037604311, 2765210733, 3554079995,
+      1131014506, 879679996, 2909243462, 3663771856,
+      1141124467, 855842277, 2852801631, 3708648649,
+      1342533948, 654459306, 3188396048, 3373015174,
+      1466479909, 544179635, 3110523913, 3462522015,
+      1591671054, 702138776, 2966460450, 3352799412,
+      1504918807, 783551873, 3082640443, 3233442989,
+      3988292384, 2596254646, 62317068, 1957810842,
+      3939845945, 2647816111, 81470997, 1943803523,
+      3814918930, 2489596804, 225274430, 2053790376,
+      3826175755, 2466906013, 167816743, 2097651377,
+      4027552580, 2265490386, 503444072, 1762050814,
+      4150417245, 2154129355, 426522225, 1852507879,
+      4275313526, 2312317920, 282753626, 1742555852,
+      4189708143, 2394877945, 397917763, 1622183637,
+      3604390888, 2714866558, 953729732, 1340076626,
+      3518719985, 2797360999, 1068828381, 1219638859,
+      3624741850, 2936675148, 906185462, 1090812512,
+      3747672003, 2825379669, 829329135, 1181335161,
+      3412177804, 3160834842, 628085408, 1382605366,
+      3423369109, 3138078467, 570562233, 1426400815,
+      3317316542, 2998733608, 733239954, 1555261956,
+      3268935591, 3050360625, 752459403, 1541320221,
+      2607071920, 3965973030, 1969922972, 40735498,
+      2617837225, 3943577151, 1913087877, 83908371,
+      2512341634, 3803740692, 2075208622, 213261112,
+      2463272603, 3855990285, 2094854071, 198958881,
+      2262029012, 4057260610, 1759359992, 534414190,
+      2176718541, 4139329115, 1873836001, 414664567,
+      2282248934, 4279200368, 1711684554, 285281116,
+      2405801727, 4167216745, 1634467795, 376229701,
+      2685067896, 3608007406, 1308918612, 956543938,
+      2808555105, 3495958263, 1231636301, 1047427035,
+      2932959818, 3654703836, 1088359270, 936918000,
+      2847714899, 3736837829, 1202900863, 817233897,
+      3183342108, 3401237130, 1404277552, 615818150,
+      3134207493, 3453421203, 1423857449, 601450431,
+      3009837614, 3294710456, 1567103746, 711928724,
+      3020668471, 3272380065, 1510334235, 755167117,
+    ]
+  end
+
+end

spec/ruby/library/zlib/deflate/append_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/deflate/deflate_spec.rb

@@ -0,0 +1,128 @@
+require 'zlib'
+require File.expand_path('../../../../spec_helper', __FILE__)
+
+describe "Zlib::Deflate.deflate" do
+  it "deflates some data" do
+    data = Array.new(10,0).pack('C*')
+
+    zipped = Zlib::Deflate.deflate data
+
+    zipped.should == [120, 156, 99, 96, 128, 1, 0, 0, 10, 0, 1].pack('C*')
+  end
+
+  it "deflates lots of data" do
+    data = "\000" * 32 * 1024
+
+    zipped = Zlib::Deflate.deflate data
+
+    zipped.should == ([120, 156, 237, 193, 1, 1, 0, 0] +
+                      [0, 128, 144, 254, 175, 238, 8, 10] +
+                      Array.new(31, 0) +
+                      [24, 128, 0, 0, 1]).pack('C*')
+  end
+
+  it "deflates chunked data" do
+    random_generator = Random.new(0)
+    deflated         = ''
+
+    Zlib.deflate(random_generator.bytes(20000)) do |chunk|
+      deflated << chunk
+    end
+
+    deflated.length.should == 20016
+  end
+end
+
+describe "Zlib::Deflate#deflate" do
+  before :each do
+    @deflator = Zlib::Deflate.new
+  end
+
+  it "deflates some data" do
+    data = "\000" * 10
+
+    zipped = @deflator.deflate data, Zlib::FINISH
+    @deflator.finish
+
+    zipped.should == [120, 156, 99, 96, 128, 1, 0, 0, 10, 0, 1].pack('C*')
+  end
+
+  it "deflates lots of data" do
+    data = "\000" * 32 * 1024
+
+    zipped = @deflator.deflate data, Zlib::FINISH
+    @deflator.finish
+
+    zipped.should == ([120, 156, 237, 193, 1, 1, 0, 0] +
+                      [0, 128, 144, 254, 175, 238, 8, 10] +
+                      Array.new(31, 0) +
+                      [24, 128, 0, 0, 1]).pack('C*')
+  end
+end
+
+describe "Zlib::Deflate#deflate" do
+
+  before :each do
+    @deflator         = Zlib::Deflate.new
+    @random_generator = Random.new(0)
+    @original         = ''
+    @chunks           = []
+  end
+
+  describe "without break" do
+
+    before do
+      2.times do
+        @input = @random_generator.bytes(20000)
+        @original << @input
+        @deflator.deflate(@input) do |chunk|
+          @chunks << chunk
+        end
+      end
+    end
+
+    it "deflates chunked data" do
+      @deflator.finish
+      @chunks.map { |chunk| chunk.length }.should == [16384, 16384]
+    end
+
+    it "deflates chunked data with final chunk" do
+      final = @deflator.finish
+      final.length.should == 7253
+    end
+
+    it "deflates chunked data without errors" do
+      final = @deflator.finish
+      @chunks << final
+      @original.should == Zlib.inflate(@chunks.join)
+    end
+
+  end
+
+  describe "with break" do
+    before :each do
+      @input = @random_generator.bytes(20000)
+      @deflator.deflate(@input) do |chunk|
+        @chunks << chunk
+        break
+      end
+    end
+
+    it "deflates only first chunk" do
+      @deflator.finish
+      @chunks.map { |chunk| chunk.length }.should == [16384]
+    end
+
+    it "deflates chunked data with final chunk" do
+      final = @deflator.finish
+      final.length.should == 3632
+    end
+
+    it "deflates chunked data without errors" do
+      final = @deflator.finish
+      @chunks << final
+      @input.should == Zlib.inflate(@chunks.join)
+    end
+
+  end
+end

spec/ruby/library/zlib/deflate/flush_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/deflate/new_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/deflate/params_spec.rb

@@ -0,0 +1,17 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'zlib'
+
+describe "Zlib::Deflate#params" do
+  it "changes the deflate parameters" do
+    data = 'abcdefghijklm'
+
+    d = Zlib::Deflate.new Zlib::NO_COMPRESSION, Zlib::MAX_WBITS,
+    Zlib::DEF_MEM_LEVEL, Zlib::DEFAULT_STRATEGY
+
+    d << data.slice!(0..10)
+    d.params Zlib::BEST_COMPRESSION, Zlib::DEFAULT_STRATEGY
+    d << data
+
+    Zlib::Inflate.inflate(d.finish).should == 'abcdefghijklm'
+  end
+end

spec/ruby/library/zlib/deflate/set_dictionary_spec.rb

@@ -0,0 +1,15 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'zlib'
+
+describe "Zlib::Deflate#set_dictionary" do
+  it "sets the dictionary" do
+    d = Zlib::Deflate.new
+    d.set_dictionary 'aaaaaaaaaa'
+    d << 'abcdefghij'
+
+    d.finish.should == [120, 187, 20, 225, 3, 203, 75, 76,
+                        74, 78, 73, 77, 75, 207, 200, 204,
+                        2, 0, 21, 134, 3, 248].pack('C*')
+  end
+end
+

spec/ruby/library/zlib/gzipfile/close_spec.rb

@@ -0,0 +1,22 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'stringio'
+require 'zlib'
+
+describe "Zlib::GzipFile#close" do
+  it "finishes the stream and closes the io" do
+    io = StringIO.new "".b
+    Zlib::GzipWriter.wrap io do |gzio|
+      gzio.close
+
+      gzio.closed?.should == true
+
+      lambda { gzio.orig_name }.should \
+        raise_error(Zlib::GzipFile::Error, 'closed gzip stream')
+      lambda { gzio.comment }.should \
+        raise_error(Zlib::GzipFile::Error, 'closed gzip stream')
+    end
+
+    io.string[10..-1].should == ([3] + Array.new(9,0)).pack('C*')
+  end
+end
+

spec/ruby/library/zlib/gzipfile/closed_spec.rb

@@ -0,0 +1,17 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'stringio'
+require 'zlib'
+
+describe "Zlib::GzipFile#closed?" do
+  it "returns the closed status" do
+    io = StringIO.new
+    Zlib::GzipWriter.wrap io do |gzio|
+      gzio.closed?.should == false
+
+      gzio.close
+
+      gzio.closed?.should == true
+    end
+  end
+end
+

spec/ruby/library/zlib/gzipfile/comment_spec.rb

@@ -0,0 +1,27 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'stringio'
+require 'zlib'
+
+describe "Zlib::GzipFile#comment" do
+  before :each do
+    @io = StringIO.new
+  end
+
+  it "returns the name" do
+    Zlib::GzipWriter.wrap @io do |gzio|
+      gzio.comment = 'name'
+
+      gzio.comment.should == 'name'
+    end
+  end
+
+  it "raises an error on a closed stream" do
+    Zlib::GzipWriter.wrap @io do |gzio|
+      gzio.close
+
+      lambda { gzio.comment }.should \
+        raise_error(Zlib::GzipFile::Error, 'closed gzip stream')
+    end
+  end
+end
+

spec/ruby/library/zlib/gzipfile/crc_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipfile/finish_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipfile/level_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipfile/mtime_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipfile/orig_name_spec.rb

@@ -0,0 +1,27 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'stringio'
+require 'zlib'
+
+describe "Zlib::GzipFile#orig_name" do
+  before :each do
+    @io = StringIO.new
+  end
+
+  it "returns the name" do
+    Zlib::GzipWriter.wrap @io do |gzio|
+      gzio.orig_name = 'name'
+
+      gzio.orig_name.should == 'name'
+    end
+  end
+
+  it "raises an error on a closed stream" do
+    Zlib::GzipWriter.wrap @io do |gzio|
+      gzio.close
+
+      lambda { gzio.orig_name }.should \
+        raise_error(Zlib::GzipFile::Error, 'closed gzip stream')
+    end
+  end
+end
+

spec/ruby/library/zlib/gzipfile/os_code_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipfile/sync_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipfile/to_io_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipfile/wrap_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipreader/each_byte_spec.rb

@@ -0,0 +1,51 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'stringio'
+require 'zlib'
+
+describe "GzipReader#each_byte" do
+
+  before :each do
+    @data = '12345abcde'
+    @zip = [31, 139, 8, 0, 44, 220, 209, 71, 0, 3, 51, 52, 50, 54, 49, 77,
+            76, 74, 78, 73, 5, 0, 157, 5, 0, 36, 10, 0, 0, 0].pack('C*')
+
+    @io = StringIO.new @zip
+    ScratchPad.clear
+  end
+
+  it "calls the given block for each byte in the stream, passing the byte as an argument" do
+    gz = Zlib::GzipReader.new @io
+
+    ScratchPad.record []
+    gz.each_byte { |b| ScratchPad << b }
+
+    ScratchPad.recorded.should == [49, 50, 51, 52, 53, 97, 98, 99, 100, 101]
+  end
+
+  it "returns an enumerator, which yields each byte in the stream, when no block is passed" do
+    gz = Zlib::GzipReader.new @io
+    enum = gz.each_byte
+
+    ScratchPad.record []
+    while true
+      begin
+        ScratchPad << enum.next
+      rescue StopIteration
+        break
+      end
+    end
+
+    ScratchPad.recorded.should == [49, 50, 51, 52, 53, 97, 98, 99, 100, 101]
+  end
+
+  it "increments position before calling the block" do
+    gz = Zlib::GzipReader.new @io
+
+    i = 1
+    gz.each_byte do |ignore|
+      gz.pos.should == i
+      i += 1
+    end
+  end
+
+end

spec/ruby/library/zlib/gzipreader/each_line_spec.rb

@@ -0,0 +1,5 @@
+require File.expand_path('../shared/each', __FILE__)
+
+describe "GzipReader#each_line" do
+  it_behaves_like :gzipreader_each, :each_line
+end

spec/ruby/library/zlib/gzipreader/each_spec.rb

@@ -0,0 +1,5 @@
+require File.expand_path('../shared/each', __FILE__)
+
+describe "GzipReader#each" do
+  it_behaves_like :gzipreader_each, :each
+end

spec/ruby/library/zlib/gzipreader/eof_spec.rb

@@ -0,0 +1,56 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'stringio'
+require 'zlib'
+
+describe "GzipReader#eof?" do
+
+  before :each do
+    @data = '{"a":1234}'
+    @zip = [31, 139, 8, 0, 0, 0, 0, 0, 0, 3, 171, 86, 74, 84, 178, 50,
+            52, 50, 54, 169, 5, 0, 196, 20, 118, 213, 10, 0, 0, 0].pack('C*')
+    @io = StringIO.new @zip
+  end
+
+  it "returns true when at EOF" do
+    gz = Zlib::GzipReader.new @io
+    gz.eof?.should be_false
+    gz.read
+    gz.eof?.should be_true
+  end
+
+  it "returns true when at EOF with the exact length of uncompressed data" do
+    gz = Zlib::GzipReader.new @io
+    gz.eof?.should be_false
+    gz.read(10)
+    gz.eof?.should be_true
+  end
+
+  it "returns true when at EOF with a length greater than the size of uncompressed data" do
+    gz = Zlib::GzipReader.new @io
+    gz.eof?.should be_false
+    gz.read(11)
+    gz.eof?.should be_true
+  end
+
+  it "returns false when at EOF when there's data left in the buffer to read" do
+    gz = Zlib::GzipReader.new @io
+    gz.read(9)
+    gz.eof?.should be_false
+    gz.read
+    gz.eof?.should be_true
+  end
+
+  # This is especially important for JRuby, since eof? there
+  # is more than just a simple accessor.
+  it "does not affect the reading data" do
+    gz = Zlib::GzipReader.new @io
+    0.upto(9) do |i|
+      gz.eof?.should be_false
+      gz.read(1).should == @data[i, 1]
+    end
+    gz.eof?.should be_true
+    gz.read().should == ""
+    gz.eof?.should be_true
+  end
+
+end

spec/ruby/library/zlib/gzipreader/getc_spec.rb

@@ -0,0 +1,41 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'stringio'
+require 'zlib'
+
+describe "GzipReader#getc" do
+
+  before :each do
+    @data = '12345abcde'
+    @zip = [31, 139, 8, 0, 44, 220, 209, 71, 0, 3, 51, 52, 50, 54, 49, 77,
+            76, 74, 78, 73, 5, 0, 157, 5, 0, 36, 10, 0, 0, 0].pack('C*')
+    @io = StringIO.new @zip
+  end
+
+  it "returns the next character from the stream" do
+    gz = Zlib::GzipReader.new @io
+    gz.pos.should == 0
+
+    gz.getc.should == '1'
+    gz.getc.should == '2'
+    gz.getc.should == '3'
+    gz.getc.should == '4'
+    gz.getc.should == '5'
+  end
+
+  it "increments position" do
+    gz = Zlib::GzipReader.new @io
+    (0..@data.size).each do |i|
+      gz.pos.should == i
+      gz.getc
+    end
+  end
+
+  it "returns nil at the end of the stream" do
+    gz = Zlib::GzipReader.new @io
+    gz.read
+    pos = gz.pos
+    gz.getc.should be_nil
+    gz.pos.should == pos
+  end
+
+end

spec/ruby/library/zlib/gzipreader/gets_spec.rb

@@ -0,0 +1,22 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'zlib'
+require 'stringio'
+
+describe 'GzipReader#gets' do
+  describe 'with "" separator' do
+    it 'reads paragraphs skipping newlines' do
+      # gz contains "\n\n\n\n\n123\n45\n\n\n\n\nabc\nde\n\n\n\n\n"
+      gz = Zlib::GzipReader.new(
+        StringIO.new(
+          [31, 139, 8, 0, 223, 152, 48, 89, 0, 3, 227, 226, 2, 2, 67, 35,
+           99, 46, 19, 83, 16, 139, 43, 49, 41, 153, 43, 37, 21, 204, 4, 0,
+           32, 119, 45, 184, 27, 0, 0, 0].pack('C*')
+        )
+      )
+
+      gz.gets('').should == "123\n45\n\n"
+      gz.gets('').should == "abc\nde\n\n"
+      gz.eof?.should be_true
+    end
+  end
+end

spec/ruby/library/zlib/gzipreader/lineno_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipreader/new_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipreader/open_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipreader/pos_spec.rb

@@ -0,0 +1,27 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'stringio'
+require 'zlib'
+
+describe "GzipReader#pos" do
+
+  before :each do
+    @data = '12345abcde'
+    @zip = [31, 139, 8, 0, 44, 220, 209, 71, 0, 3, 51, 52, 50, 54, 49, 77,
+            76, 74, 78, 73, 5, 0, 157, 5, 0, 36, 10, 0, 0, 0].pack('C*')
+    @io = StringIO.new @zip
+  end
+
+  it "returns the position" do
+    gz = Zlib::GzipReader.new @io
+
+    gz.pos.should == 0
+
+    gz.read 5
+    gz.pos.should == 5
+
+    gz.read
+    gz.pos.should == @data.length
+  end
+
+end
+

spec/ruby/library/zlib/gzipreader/read_spec.rb

@@ -0,0 +1,68 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'stringio'
+require 'zlib'
+
+describe "GzipReader#read" do
+
+  before :each do
+    @data = '12345abcde'
+    @zip = [31, 139, 8, 0, 44, 220, 209, 71, 0, 3, 51, 52, 50, 54, 49, 77,
+            76, 74, 78, 73, 5, 0, 157, 5, 0, 36, 10, 0, 0, 0].pack('C*')
+    @io = StringIO.new @zip
+  end
+
+  it "with no arguments reads the entire content of a gzip file" do
+    gz = Zlib::GzipReader.new @io
+    gz.read.should == @data
+  end
+
+  it "with nil length argument reads the entire content of a gzip file" do
+    gz = Zlib::GzipReader.new @io
+    gz.read(nil).should == @data
+  end
+
+  it "reads the contents up to a certain size" do
+    gz = Zlib::GzipReader.new @io
+    gz.read(5).should == @data[0...5]
+    gz.read(5).should == @data[5...10]
+  end
+
+  it "does not accept a negative length to read" do
+    gz = Zlib::GzipReader.new @io
+    lambda {
+      gz.read(-1)
+    }.should raise_error(ArgumentError)
+  end
+
+  it "returns an empty string if a 0 length is given" do
+    gz = Zlib::GzipReader.new @io
+    gz.read(0).should == ""
+  end
+
+  it "respects :external_encoding option" do
+    gz = Zlib::GzipReader.new(@io, external_encoding: 'UTF-8')
+    gz.read.encoding.should == Encoding::UTF_8
+
+    @io.rewind
+    gz = Zlib::GzipReader.new(@io, external_encoding: 'UTF-16LE')
+    gz.read.encoding.should == Encoding::UTF_16LE
+  end
+
+  describe "at the end of data" do
+    it "returns empty string if length prameter is not specified or 0" do
+      gz = Zlib::GzipReader.new @io
+      gz.read # read till the end
+      gz.read(0).should == ""
+      gz.read().should == ""
+      gz.read(nil).should == ""
+    end
+
+    it "returns nil if length prameter is positive" do
+      gz = Zlib::GzipReader.new @io
+      gz.read # read till the end
+      gz.read(1).should be_nil
+      gz.read(2**16).should be_nil
+    end
+  end
+
+end

spec/ruby/library/zlib/gzipreader/readchar_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipreader/readline_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipreader/readlines_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipreader/readpartial_spec.rb

@@ -0,0 +1,17 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'stringio'
+require 'zlib'
+
+describe 'GzipReader#readpartial' do
+  before :each do
+    @data = '12345abcde'
+    @zip = [31, 139, 8, 0, 44, 220, 209, 71, 0, 3, 51, 52, 50, 54, 49, 77,
+            76, 74, 78, 73, 5, 0, 157, 5, 0, 36, 10, 0, 0, 0].pack('C*')
+    @io = StringIO.new(@zip)
+  end
+
+  it 'accepts nil buffer' do
+    gz = Zlib::GzipReader.new(@io)
+    gz.readpartial(5, nil).should == '12345'
+  end
+end

spec/ruby/library/zlib/gzipreader/rewind_spec.rb

@@ -0,0 +1,48 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'stringio'
+require 'zlib'
+
+describe "GzipReader#rewind" do
+
+  before :each do
+    @data = '12345abcde'
+    @zip = [31, 139, 8, 0, 44, 220, 209, 71, 0, 3, 51, 52, 50, 54, 49, 77,
+            76, 74, 78, 73, 5, 0, 157, 5, 0, 36, 10, 0, 0, 0].pack('C*')
+    @io = StringIO.new @zip
+    ScratchPad.clear
+  end
+
+  it "resets the position of the stream pointer" do
+    gz = Zlib::GzipReader.new @io
+    gz.read
+    gz.pos.should == @data.length
+
+    gz.rewind
+    gz.pos.should == 0
+    gz.lineno.should == 0
+  end
+
+  it "resets the position of the stream pointer to data previously read" do
+    gz = Zlib::GzipReader.new @io
+    first_read = gz.read
+    gz.rewind
+    first_read.should == gz.read
+  end
+
+  it "invokes seek method on the associated IO object" do
+    # first, prepare the mock object:
+    (obj = mock("io")).should_receive(:get_io).any_number_of_times.and_return(@io)
+    def obj.read(args); get_io.read(args); end
+    def obj.seek(pos, whence = 0)
+      ScratchPad.record :seek
+      get_io.seek(pos, whence)
+    end
+
+    gz = Zlib::GzipReader.new(obj)
+    gz.rewind()
+
+    ScratchPad.recorded.should == :seek
+    gz.pos.should == 0
+    gz.read.should == "12345abcde"
+  end
+end

spec/ruby/library/zlib/gzipreader/shared/each.rb

@@ -0,0 +1,51 @@
+require File.expand_path('../../../../../spec_helper', __FILE__)
+require 'stringio'
+require 'zlib'
+
+describe :gzipreader_each, shared: true do
+
+  before :each do
+    @data = "firstline\nsecondline\n\nforthline"
+    @zip = [31, 139, 8, 0, 244, 125, 128, 88, 2, 255, 75, 203, 44, 42, 46, 201,
+            201, 204, 75, 229, 42, 78, 77, 206, 207, 75, 1, 51, 185, 210,242,
+            139, 74, 50, 64, 76, 0, 180, 54, 61, 111, 31, 0, 0, 0].pack('C*')
+
+    @io = StringIO.new @zip
+    @gzreader = Zlib::GzipReader.new @io
+  end
+
+  after :each do
+    ScratchPad.clear
+  end
+
+  it "calls the given block for each line in the stream, passing the line as an argument" do
+    ScratchPad.record []
+    @gzreader.send(@method) { |b| ScratchPad << b }
+
+    ScratchPad.recorded.should == ["firstline\n", "secondline\n", "\n", "forthline"]
+  end
+
+  it "returns an enumerator, which yields each byte in the stream, when no block is passed" do
+    enum = @gzreader.send(@method)
+
+    ScratchPad.record []
+    while true
+      begin
+        ScratchPad << enum.next
+      rescue StopIteration
+        break
+      end
+    end
+
+    ScratchPad.recorded.should == ["firstline\n", "secondline\n", "\n", "forthline"]
+  end
+
+  it "increments position before calling the block" do
+    i = 0
+    @gzreader.send(@method) do |line|
+      i += line.length
+      @gzreader.pos.should == i
+    end
+  end
+
+end

spec/ruby/library/zlib/gzipreader/tell_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipreader/ungetbyte_spec.rb

@@ -0,0 +1,122 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'stringio'
+require 'zlib'
+
+describe 'GzipReader#ungetbyte' do
+  before :each do
+    @data = '12345abcde'
+    @zip = [31, 139, 8, 0, 44, 220, 209, 71, 0, 3, 51, 52, 50, 54, 49, 77,
+            76, 74, 78, 73, 5, 0, 157, 5, 0, 36, 10, 0, 0, 0].pack('C*')
+    @io = StringIO.new @zip
+  end
+
+  describe 'at the start of the stream' do
+    before :each do
+      @gz = Zlib::GzipReader.new(@io)
+    end
+
+    describe 'with an integer' do
+      it 'prepends the byte to the stream' do
+        @gz.ungetbyte 0x21
+        @gz.read.should == '!12345abcde'
+      end
+
+      ruby_bug "#13616", ""..."2.6" do
+        it 'decrements pos' do
+          @gz.ungetbyte 0x21
+          @gz.pos.should == -1
+        end
+      end
+    end
+
+    quarantine! do # https://bugs.ruby-lang.org/issues/13675
+      describe 'with nil' do
+        it 'does not prepend anything to the stream' do
+          @gz.ungetbyte nil
+          @gz.read.should == '12345abcde'
+        end
+
+        it 'does not decrement pos' do
+          @gz.ungetbyte nil
+          @gz.pos.should == 0
+        end
+      end
+    end
+  end
+
+  describe 'in the middle of the stream' do
+    before :each do
+      @gz = Zlib::GzipReader.new(@io)
+      @gz.read 5
+    end
+
+    describe 'with an integer' do
+      it 'inserts the corresponding character into the stream' do
+        @gz.ungetbyte 0x21
+        @gz.read.should == '!abcde'
+      end
+
+      it 'decrements pos' do
+        @gz.ungetbyte 0x21
+        @gz.pos.should == 4
+      end
+    end
+
+    quarantine! do # https://bugs.ruby-lang.org/issues/13675
+      describe 'with nil' do
+        it 'does not insert anything into the stream' do
+          @gz.ungetbyte nil
+          @gz.read.should == 'abcde'
+        end
+
+        it 'does not decrement pos' do
+          @gz.ungetbyte nil
+          @gz.pos.should == 5
+        end
+      end
+    end
+  end
+
+  describe 'at the end of the stream' do
+    before :each do
+      @gz = Zlib::GzipReader.new(@io)
+      @gz.read
+    end
+
+    describe 'with an integer' do
+      it 'appends the corresponding character to the stream' do
+        @gz.ungetbyte 0x21
+        @gz.read.should == '!'
+      end
+
+      it 'decrements pos' do
+        @gz.ungetbyte 0x21
+        @gz.pos.should == 9
+      end
+
+      it 'makes eof? false' do
+        @gz.ungetbyte 0x21
+        @gz.eof?.should be_false
+      end
+    end
+
+    quarantine! do # https://bugs.ruby-lang.org/issues/13675
+      describe 'with nil' do
+        it 'does not append anything to the stream' do
+          @gz.ungetbyte nil
+          @gz.read.should == ''
+        end
+
+        it 'does not decrement pos' do
+          @gz.ungetbyte nil
+          @gz.pos.should == 10
+        end
+
+        it 'does not make eof? false' do
+          @gz.ungetbyte nil
+          @gz.eof?.should be_true
+        end
+      end
+    end
+  end
+end

spec/ruby/library/zlib/gzipreader/ungetc_spec.rb

@@ -0,0 +1,292 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'stringio'
+require 'zlib'
+
+describe 'GzipReader#ungetc' do
+  before :each do
+    @data = '12345abcde'
+    @zip = [31, 139, 8, 0, 44, 220, 209, 71, 0, 3, 51, 52, 50, 54, 49, 77,
+            76, 74, 78, 73, 5, 0, 157, 5, 0, 36, 10, 0, 0, 0].pack('C*')
+    @io = StringIO.new @zip
+  end
+
+  describe 'at the start of the stream' do
+    before :each do
+      @gz = Zlib::GzipReader.new(@io, external_encoding: Encoding::UTF_8)
+    end
+
+    describe 'with a single-byte character' do
+      it 'prepends the character to the stream' do
+        @gz.ungetc 'x'
+        @gz.read.should == 'x12345abcde'
+      end
+
+      ruby_bug "#13616", ""..."2.6" do
+        it 'decrements pos' do
+          @gz.ungetc 'x'
+          @gz.pos.should == -1
+        end
+      end
+    end
+
+    describe 'with a multi-byte character' do
+      it 'prepends the character to the stream' do
+        @gz.ungetc 'ŷ'
+        @gz.read.should == 'ŷ12345abcde'
+      end
+
+      ruby_bug "#13616", ""..."2.6" do
+        it 'decrements pos' do
+          @gz.ungetc 'ŷ'
+          @gz.pos.should == -2
+        end
+      end
+    end
+
+    describe 'with a multi-character string' do
+      it 'prepends the characters to the stream' do
+        @gz.ungetc 'xŷž'
+        @gz.read.should == 'xŷž12345abcde'
+      end
+
+      ruby_bug "#13616", ""..."2.6" do
+        it 'decrements pos' do
+          @gz.ungetc 'xŷž'
+          @gz.pos.should == -5
+        end
+      end
+    end
+
+    describe 'with an integer' do
+      it 'prepends the corresponding character to the stream' do
+        @gz.ungetc 0x21
+        @gz.read.should == '!12345abcde'
+      end
+
+      ruby_bug "#13616", ""..."2.6" do
+        it 'decrements pos' do
+          @gz.ungetc 0x21
+          @gz.pos.should == -1
+        end
+      end
+    end
+
+    describe 'with an empty string' do
+      it 'does not prepend anything to the stream' do
+        @gz.ungetc ''
+        @gz.read.should == '12345abcde'
+      end
+
+      it 'does not decrement pos' do
+        @gz.ungetc ''
+        @gz.pos.should == 0
+      end
+    end
+
+    quarantine! do # https://bugs.ruby-lang.org/issues/13675
+      describe 'with nil' do
+        it 'does not prepend anything to the stream' do
+          @gz.ungetc nil
+          @gz.read.should == '12345abcde'
+        end
+
+        it 'does not decrement pos' do
+          @gz.ungetc nil
+          @gz.pos.should == 0
+        end
+      end
+    end
+  end
+
+  describe 'in the middle of the stream' do
+    before :each do
+      @gz = Zlib::GzipReader.new(@io, external_encoding: Encoding::UTF_8)
+      @gz.read 5
+    end
+
+    describe 'with a single-byte character' do
+      it 'inserts the character into the stream' do
+        @gz.ungetc 'x'
+        @gz.read.should == 'xabcde'
+      end
+
+      it 'decrements pos' do
+        @gz.ungetc 'x'
+        @gz.pos.should == 4
+      end
+    end
+
+    describe 'with a multi-byte character' do
+      it 'inserts the character into the stream' do
+        @gz.ungetc 'ŷ'
+        @gz.read.should == 'ŷabcde'
+      end
+
+      it 'decrements pos' do
+        @gz.ungetc 'ŷ'
+        @gz.pos.should == 3
+      end
+    end
+
+    describe 'with a multi-character string' do
+      it 'inserts the characters into the stream' do
+        @gz.ungetc 'xŷž'
+        @gz.read.should == 'xŷžabcde'
+      end
+
+      it 'decrements pos' do
+        @gz.ungetc 'xŷž'
+        @gz.pos.should == 0
+      end
+    end
+
+    describe 'with an integer' do
+      it 'inserts the corresponding character into the stream' do
+        @gz.ungetc 0x21
+        @gz.read.should == '!abcde'
+      end
+
+      it 'decrements pos' do
+        @gz.ungetc 0x21
+        @gz.pos.should == 4
+      end
+    end
+
+    describe 'with an empty string' do
+      it 'does not insert anything into the stream' do
+        @gz.ungetc ''
+        @gz.read.should == 'abcde'
+      end
+
+      it 'does not decrement pos' do
+        @gz.ungetc ''
+        @gz.pos.should == 5
+      end
+    end
+
+    quarantine! do # https://bugs.ruby-lang.org/issues/13675
+      describe 'with nil' do
+        it 'does not insert anything into the stream' do
+          @gz.ungetc nil
+          @gz.read.should == 'abcde'
+        end
+
+        it 'does not decrement pos' do
+          @gz.ungetc nil
+          @gz.pos.should == 5
+        end
+      end
+    end
+  end
+
+  describe 'at the end of the stream' do
+    before :each do
+      @gz = Zlib::GzipReader.new(@io, external_encoding: Encoding::UTF_8)
+      @gz.read
+    end
+
+    describe 'with a single-byte character' do
+      it 'appends the character to the stream' do
+        @gz.ungetc 'x'
+        @gz.read.should == 'x'
+      end
+
+      it 'decrements pos' do
+        @gz.ungetc 'x'
+        @gz.pos.should == 9
+      end
+
+      it 'makes eof? false' do
+        @gz.ungetc 'x'
+        @gz.eof?.should be_false
+      end
+    end
+
+    describe 'with a multi-byte character' do
+      it 'appends the character to the stream' do
+        @gz.ungetc 'ŷ'
+        @gz.read.should == 'ŷ'
+      end
+
+      it 'decrements pos' do
+        @gz.ungetc 'ŷ'
+        @gz.pos.should == 8
+      end
+
+      it 'makes eof? false' do
+        @gz.ungetc 'ŷ'
+        @gz.eof?.should be_false
+      end
+    end
+
+    describe 'with a multi-character string' do
+      it 'appends the characters to the stream' do
+        @gz.ungetc 'xŷž'
+        @gz.read.should == 'xŷž'
+      end
+
+      it 'decrements pos' do
+        @gz.ungetc 'xŷž'
+        @gz.pos.should == 5
+      end
+
+      it 'makes eof? false' do
+        @gz.ungetc 'xŷž'
+        @gz.eof?.should be_false
+      end
+    end
+
+    describe 'with an integer' do
+      it 'appends the corresponding character to the stream' do
+        @gz.ungetc 0x21
+        @gz.read.should == '!'
+      end
+
+      it 'decrements pos' do
+        @gz.ungetc 0x21
+        @gz.pos.should == 9
+      end
+
+      it 'makes eof? false' do
+        @gz.ungetc 0x21
+        @gz.eof?.should be_false
+      end
+    end
+
+    describe 'with an empty string' do
+      it 'does not append anything to the stream' do
+        @gz.ungetc ''
+        @gz.read.should == ''
+      end
+
+      it 'does not decrement pos' do
+        @gz.ungetc ''
+        @gz.pos.should == 10
+      end
+
+      it 'does not make eof? false' do
+        @gz.ungetc ''
+        @gz.eof?.should be_true
+      end
+    end
+
+    quarantine! do # https://bugs.ruby-lang.org/issues/13675
+      describe 'with nil' do
+        it 'does not append anything to the stream' do
+          @gz.ungetc nil
+          @gz.read.should == ''
+        end
+
+        it 'does not decrement pos' do
+          @gz.ungetc nil
+          @gz.pos.should == 10
+        end
+
+        it 'does not make eof? false' do
+          @gz.ungetc nil
+          @gz.eof?.should be_true
+        end
+      end
+    end
+  end
+end

spec/ruby/library/zlib/gzipreader/unused_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipwriter/append_spec.rb

@@ -0,0 +1,17 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'stringio'
+require 'zlib'
+
+describe "Zlib::GzipWriter#<<" do
+  before :each do
+    @io = StringIO.new
+  end
+
+  it "returns self" do
+    Zlib::GzipWriter.wrap @io do |gzio|
+      (gzio << "test").should equal(gzio)
+    end
+  end
+
+  it "needs to be reviewed for spec completeness"
+end

spec/ruby/library/zlib/gzipwriter/comment_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipwriter/flush_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipwriter/mtime_spec.rb

@@ -0,0 +1,38 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'stringio'
+require 'zlib'
+
+describe "Zlib::GzipWriter#mtime=" do
+  before :each do
+    @io = StringIO.new
+  end
+
+  it "sets mtime using Integer" do
+    Zlib::GzipWriter.wrap @io do |gzio|
+      gzio.mtime = 1
+
+      gzio.mtime.should == Time.at(1)
+    end
+
+    @io.string[4, 4].should == [1,0,0,0].pack('C*')
+  end
+
+  it "sets mtime using Time" do
+    Zlib::GzipWriter.wrap @io do |gzio|
+      gzio.mtime = Time.at 1
+
+      gzio.mtime.should == Time.at(1)
+    end
+
+    @io.string[4, 4].should == [1,0,0,0].pack('C*')
+  end
+
+  it "raises if the header was written" do
+    Zlib::GzipWriter.wrap @io do |gzio|
+      gzio.write ''
+
+      lambda { gzio.mtime = nil }.should \
+        raise_error(Zlib::GzipFile::Error, 'header is already written')
+    end
+  end
+end

spec/ruby/library/zlib/gzipwriter/new_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipwriter/open_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipwriter/orig_name_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipwriter/pos_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipwriter/print_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipwriter/printf_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipwriter/putc_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipwriter/puts_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipwriter/tell_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/gzipwriter/write_spec.rb

@@ -0,0 +1,36 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'stringio'
+require 'zlib'
+
+describe "GzipWriter#write" do
+  before :each do
+    @data = '12345abcde'
+    @zip = [31, 139, 8, 0, 44, 220, 209, 71, 0, 3, 51, 52, 50, 54, 49, 77,
+            76, 74, 78, 73, 5, 0, 157, 5, 0, 36, 10, 0, 0, 0].pack('C*')
+    @io = StringIO.new "".b
+  end
+
+  it "writes some compressed data" do
+    Zlib::GzipWriter.wrap @io do |gzio|
+      gzio.write @data
+    end
+
+    # skip gzip header for now
+    @io.string.unpack('C*')[10..-1].should == @zip.unpack('C*')[10..-1]
+  end
+
+  it "returns the number of bytes in the input" do
+    Zlib::GzipWriter.wrap @io do |gzio|
+      gzio.write(@data).should == @data.size
+    end
+  end
+
+  it "handles inputs of 2^23 bytes" do
+    input = '.'.b * (2 ** 23)
+
+    Zlib::GzipWriter.wrap @io do |gzio|
+      gzio.write input
+    end
+    @io.string.size.should == 8176
+  end
+end

spec/ruby/library/zlib/inflate/append_spec.rb

@@ -0,0 +1,60 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'zlib'
+
+describe "Zlib::Inflate#<<" do
+  before :all do
+    @foo_deflated = [120, 156, 75, 203, 207, 7, 0, 2, 130, 1, 69].pack('C*')
+  end
+
+  before :each do
+    @z = Zlib::Inflate.new
+  end
+
+  after :each do
+    @z.close unless @z.closed?
+  end
+
+  it "appends data to the input stream" do
+    @z << @foo_deflated
+    @z.finish.should == 'foo'
+  end
+
+  it "treats nil argument as the end of compressed data" do
+    @z = Zlib::Inflate.new
+    @z << @foo_deflated << nil
+    @z.finish.should == 'foo'
+  end
+
+  it "just passes through the data after nil argument" do
+    @z = Zlib::Inflate.new
+    @z << @foo_deflated << nil
+    @z << "-after_nil_data"
+    @z.finish.should == 'foo-after_nil_data'
+  end
+
+  it "properly handles data in chunks" do
+    # add bytes, one by one
+    @foo_deflated.each_byte { |d| @z << d.chr}
+    @z.finish.should == "foo"
+  end
+
+  it "properly handles incomplete data" do
+    # add bytes, one by one
+    @foo_deflated[0, 5].each_byte { |d| @z << d.chr}
+    lambda { @z.finish }.should raise_error(Zlib::BufError)
+  end
+
+  it "properly handles excessive data, byte-by-byte" do
+    # add bytes, one by one
+    data = @foo_deflated * 2
+    data.each_byte { |d| @z << d.chr}
+    @z.finish.should == "foo" + @foo_deflated
+  end
+
+  it "properly handles excessive data, in one go" do
+    # add bytes, one by one
+    data = @foo_deflated * 2
+    @z << data
+    @z.finish.should == "foo" + @foo_deflated
+  end
+end

spec/ruby/library/zlib/inflate/finish_spec.rb

@@ -0,0 +1,28 @@
+require 'zlib'
+
+describe "Zlib::Inflate#finish" do
+
+  before do
+    @zeros    = Zlib::Deflate.deflate("0" * 100_000)
+    @inflator = Zlib::Inflate.new
+    @chunks   = []
+
+    @inflator.inflate(@zeros) do |chunk|
+      @chunks << chunk
+      break
+    end
+
+    @inflator.finish do |chunk|
+      @chunks << chunk
+    end
+  end
+
+  it "inflates chunked data" do
+    @chunks.map { |chunk| chunk.length }.should == [16384, 16384, 16384, 16384, 16384, 16384, 1696]
+  end
+
+  it "each chunk should have the same prefix" do
+    @chunks.all? { |chunk| chunk =~ /\A0+\z/ }.should be_true
+  end
+
+end

spec/ruby/library/zlib/inflate/inflate_spec.rb

@@ -0,0 +1,152 @@
+require 'zlib'
+require File.expand_path('../../../../spec_helper', __FILE__)
+
+describe "Zlib::Inflate#inflate" do
+
+  before :each do
+    @inflator = Zlib::Inflate.new
+  end
+  it "inflates some data" do
+    data = [120, 156, 99, 96, 128, 1, 0, 0, 10, 0, 1].pack('C*')
+    unzipped = @inflator.inflate data
+    @inflator.finish
+
+    unzipped.should == "\000" * 10
+  end
+
+  it "inflates lots of data" do
+    data = [120, 156, 237, 193, 1, 1, 0, 0] +
+           [0, 128, 144, 254, 175, 238, 8, 10] +
+           Array.new(31, 0) +
+           [24, 128, 0, 0, 1]
+
+    unzipped = @inflator.inflate data.pack('C*')
+    @inflator.finish
+
+    unzipped.should == "\000" * 32 * 1024
+  end
+
+  it "works in pass-through mode, once finished" do
+    data = [120, 156, 99, 96, 128, 1, 0, 0, 10, 0, 1]
+    @inflator.inflate data.pack('C*')
+    @inflator.finish  # this is a precondition
+
+    out = @inflator.inflate('uncompressed_data')
+    out << @inflator.finish
+    out.should == 'uncompressed_data'
+
+    @inflator << ('uncompressed_data') << nil
+    @inflator.finish.should == 'uncompressed_data'
+  end
+
+end
+
+describe "Zlib::Inflate.inflate" do
+
+  it "inflates some data" do
+    data = [120, 156, 99, 96, 128, 1, 0, 0, 10, 0, 1]
+    unzipped = Zlib::Inflate.inflate data.pack('C*')
+
+    unzipped.should == "\000" * 10
+  end
+
+  it "inflates lots of data" do
+    data = [120, 156, 237, 193, 1, 1, 0, 0] +
+           [0, 128, 144, 254, 175, 238, 8, 10] +
+           Array.new(31,0) +
+           [24, 128, 0, 0, 1]
+
+    zipped = Zlib::Inflate.inflate data.pack('C*')
+
+    zipped.should == "\000" * 32 * 1024
+  end
+
+  it "properly handles data in chunks" do
+    data = [120, 156, 75, 203, 207, 7, 0, 2, 130, 1, 69].pack('C*')
+    z = Zlib::Inflate.new
+    # add bytes, one by one
+    result = ""
+    data.each_byte { |d| result << z.inflate(d.chr)}
+    result << z.finish
+    result.should == "foo"
+  end
+
+  it "properly handles incomplete data" do
+    data = [120, 156, 75, 203, 207, 7, 0, 2, 130, 1, 69].pack('C*')[0,5]
+    z = Zlib::Inflate.new
+    # add bytes, one by one, but not all
+    result = ""
+    data.each_byte { |d| result << z.inflate(d.chr)}
+    lambda { result << z.finish }.should raise_error(Zlib::BufError)
+  end
+
+  it "properly handles excessive data, byte-by-byte" do
+    main_data = [120, 156, 75, 203, 207, 7, 0, 2, 130, 1, 69].pack('C*')
+    data =  main_data * 2
+    result = ""
+
+    z = Zlib::Inflate.new
+    # add bytes, one by one
+    data.each_byte { |d| result << z.inflate(d.chr)}
+    result << z.finish
+
+    # the first chunk is inflated to its completion,
+    # the second chunk is just passed through.
+    result.should == "foo" + main_data
+  end
+
+  it "properly handles excessive data, in one go" do
+    main_data = [120, 156, 75, 203, 207, 7, 0, 2, 130, 1, 69].pack('C*')
+    data =  main_data * 2
+    result = ""
+
+    z = Zlib::Inflate.new
+    result << z.inflate(data)
+    result << z.finish
+
+    # the first chunk is inflated to its completion,
+    # the second chunk is just passed through.
+    result.should == "foo" + main_data
+  end
+end
+
+describe "Zlib::Inflate#inflate" do
+
+  before do
+    @zeros    = Zlib::Deflate.deflate("0" * 100_000)
+    @inflator = Zlib::Inflate.new
+    @chunks   = []
+  end
+
+  describe "without break" do
+
+    before do
+      @inflator.inflate(@zeros) do |chunk|
+        @chunks << chunk
+      end
+    end
+
+    it "inflates chunked data" do
+      @chunks.map { |chunk| chunk.size }.should == [16384, 16384, 16384, 16384, 16384, 16384, 1696]
+    end
+
+    it "properly handles chunked data" do
+      @chunks.all? { |chunk| chunk =~ /\A0+\z/ }.should be_true
+    end
+  end
+
+  describe "with break" do
+
+    before do
+      @inflator.inflate(@zeros) do |chunk|
+        @chunks << chunk
+        break
+      end
+    end
+
+    it "inflates chunked break" do
+      output = @inflator.inflate nil
+      (100_000 - @chunks.first.length).should == output.length
+    end
+  end
+end

spec/ruby/library/zlib/inflate/new_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/inflate/set_dictionary_spec.rb

@@ -0,0 +1,21 @@
+# -*- encoding: binary -*-
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'zlib'
+
+describe "Zlib::Inflate#set_dictionary" do
+  it "sets the inflate dictionary" do
+    deflated = "x\273\024\341\003\313KLJNIMK\317\310\314\002\000\025\206\003\370"
+
+    i = Zlib::Inflate.new
+
+    begin
+      i << deflated
+      flunk 'Zlib::NeedDict not raised'
+    rescue Zlib::NeedDict
+      i.set_dictionary 'aaaaaaaaaa'
+    end
+
+    i.finish.should == 'abcdefghij'
+  end
+end
+

spec/ruby/library/zlib/inflate/sync_point_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/inflate/sync_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/zlib_version_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../spec_helper', __FILE__)

spec/ruby/library/zlib/zstream/adler_spec.rb

@@ -0,0 +1,11 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'zlib'
+
+describe "Zlib::ZStream#adler" do
+  it "generates hash" do
+    z = Zlib::Deflate.new
+    z << "foo"
+    z.finish
+    z.adler.should == 0x02820145
+  end
+end

spec/ruby/library/zlib/zstream/avail_in_spec.rb

@@ -0,0 +1,9 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'zlib'
+
+describe "Zlib::ZStream#avail_in" do
+  it "returns bytes in the input buffer" do
+    z = Zlib::Deflate.new
+    z.avail_in.should == 0
+  end
+end

spec/ruby/library/zlib/zstream/avail_out_spec.rb

@@ -0,0 +1,9 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'zlib'
+
+describe "Zlib::ZStream#avail_out" do
+  it "returns bytes in the output buffer" do
+    z = Zlib::Deflate.new
+    z.avail_out.should == 0
+  end
+end

spec/ruby/library/zlib/zstream/close_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/zstream/closed_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/zstream/data_type_spec.rb

@@ -0,0 +1,9 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'zlib'
+
+describe "Zlib::ZStream#data_type" do
+  it "returns the type of the data in the stream" do
+    z = Zlib::Deflate.new
+    [Zlib::ASCII, Zlib::BINARY, Zlib::UNKNOWN].include?(z.data_type).should == true
+  end
+end

spec/ruby/library/zlib/zstream/end_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/zstream/ended_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/zstream/finish_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/zstream/finished_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/zstream/flush_next_in_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/zstream/flush_next_out_spec.rb

@@ -0,0 +1,16 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'zlib'
+
+describe "Zlib::ZStream#flush_next_out" do
+
+  it "flushes the stream and flushes the output buffer" do
+    zs = Zlib::Inflate.new
+    zs << [120, 156, 75, 203, 207, 7, 0, 2, 130, 1, 69].pack('C*')
+
+    zs.flush_next_out.should == 'foo'
+    zs.finished?.should == true
+    zs.flush_next_out.should == ''
+  end
+end
+
+

spec/ruby/library/zlib/zstream/reset_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/zstream/stream_end_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/zstream/total_in_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)

spec/ruby/library/zlib/zstream/total_out_spec.rb

@@ -0,0 +1 @@
+require File.expand_path('../../../../spec_helper', __FILE__)