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# -*- encoding: utf-8 -*-
require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe "IO#getbyte" do
before :each do
@io = IOSpecs.io_fixture "lines.txt"
end
after :each do
@io.close if @io
end
it "returns the next byte from the stream" do
@io.readline.should == "Voici la ligne une.\n"
letters = @io.getbyte, @io.getbyte, @io.getbyte, @io.getbyte, @io.getbyte
letters.should == [81, 117, 105, 32, 195]
end
it "returns nil when invoked at the end of the stream" do
@io.read
@io.getbyte.should == nil
end
it "raises an IOError on closed stream" do
-> { IOSpecs.closed_io.getbyte }.should raise_error(IOError)
end
end
describe "IO#getbyte" do
before :each do
@io = IOSpecs.io_fixture "empty.txt"
end
after :each do
@io.close if @io
end
it "returns nil on empty stream" do
@io.getbyte.should == nil
end
end
describe "IO#getbyte" do
before :each do
@name = tmp("io_getbyte.txt")
@io = new_io(@name, 'w')
end
after :each do
@io.close if @io
rm_r @name if @name
end
it "raises an IOError if the stream is not readable" do
-> { @io.getbyte }.should raise_error(IOError)
end
end
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