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ruby--ruby/spec/ruby/core/io/readbyte_spec.rb
2019-07-27 12:40:09 +02:00

24 lines
420 B
Ruby

require_relative '../../spec_helper'
describe "IO#readbyte" do
before :each do
@io = File.open(__FILE__, 'r')
end
after :each do
@io.close
end
it "reads one byte from the stream" do
byte = @io.readbyte
byte.should == ?r.getbyte(0)
@io.pos.should == 1
end
it "raises EOFError on EOF" do
@io.seek(999999)
-> do
@io.readbyte
end.should raise_error EOFError
end
end