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require_relative '../../../spec_helper'
require 'stringio'
require 'zlib'
describe "Zlib::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
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