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require_relative '../../../spec_helper'
require 'stringio'
require 'zlib'
describe "Zlib::GzipReader#each_char" 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 char in the stream, passing the char as an argument" do
gz = Zlib::GzipReader.new @io
ScratchPad.record []
gz.each_char { |b| ScratchPad << b }
ScratchPad.recorded.should == ["1", "2", "3", "4", "5", "a", "b", "c", "d", "e"]
end
it "returns an enumerator, which yields each char in the stream, when no block is passed" do
gz = Zlib::GzipReader.new @io
enum = gz.each_char
ScratchPad.record []
while true
begin
ScratchPad << enum.next
rescue StopIteration
break
end
end
ScratchPad.recorded.should == ["1", "2", "3", "4", "5", "a", "b", "c", "d", "e"]
end
it "increments position before calling the block" do
gz = Zlib::GzipReader.new @io
i = 1
gz.each_char do |ignore|
gz.pos.should == i
i += 1
end
end
end
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