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Versions: 19
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Contents
require File.expand_path('../../../../spec_helper', __FILE__)
require 'stringio'
require 'zlib'
describe "GzipReader#rewind" do
before :each do
@data = '12345abcde'
@zip = "\037\213\b\000,\334\321G\000\00334261MLJNI\005\000\235\005\000$\n\000\000\000"
@io = StringIO.new @zip
ScratchPad.clear
end
it "resets the position of the stream pointer" do
gz = Zlib::GzipReader.new @io
gz.read
gz.pos.should == @data.length
gz.rewind
gz.pos.should == 0
gz.lineno.should == 0
end
it "resets the position of the stream pointer to data previously read" do
gz = Zlib::GzipReader.new @io
first_read = gz.read
gz.rewind
first_read.should == gz.read
end
it "invokes seek method on the associated IO object" do
# first, prepare the mock object:
(obj = mock("io")).should_receive(:get_io).any_number_of_times.and_return(@io)
def obj.read(args); get_io.read(args); end
def obj.seek(pos, whence = 0)
ScratchPad.record :seek
get_io.seek(pos, whence)
end
gz = Zlib::GzipReader.new(obj)
gz.rewind()
ScratchPad.recorded.should == :seek
gz.pos.should == 0
gz.read.should == "12345abcde"
end
end
Version data entries
19 entries across 19 versions & 2 rubygems