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require_relative '../../../../spec_helper'
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
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