diff options
Diffstat (limited to 'spec/rubyspec/library/zlib/gzipreader/each_byte_spec.rb')
-rw-r--r-- | spec/rubyspec/library/zlib/gzipreader/each_byte_spec.rb | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/spec/rubyspec/library/zlib/gzipreader/each_byte_spec.rb b/spec/rubyspec/library/zlib/gzipreader/each_byte_spec.rb new file mode 100644 index 0000000000..6da9ac8323 --- /dev/null +++ b/spec/rubyspec/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 |