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