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Contents
require File.dirname(File.join(__rhoGetCurrentDir(), __FILE__)) + '/../../spec_helper'
require File.dirname(File.join(__rhoGetCurrentDir(), __FILE__)) + '/fixtures/classes'
describe "IO#each_byte" do
before(:each) do
@io = File.open(IOSpecs.gets_fixtures)
end
after(:each) do
@io.close
end
it "raises IOError on closed stream" do
# each_byte must have a block in order to raise the Error.
# MRI 1.8.7 returns enumerator if block is not provided.
# See [ruby-core:16557].
lambda { IOSpecs.closed_file.each_byte {} }.should raise_error(IOError)
end
it "yields each byte" do
bytes = []
@io.each_byte do |byte|
bytes << byte
break if bytes.length >= 5
end
bytes.should == [86, 111, 105, 99, 105]
end
it "works on empty streams" do
f = File.new(tmp("io-each-byte-spec"), "w+")
lambda {
f.each_byte { |b| raise IOError }
}.should_not raise_error
f.close
File.unlink(tmp("io-each-byte-spec"))
end
ruby_version_is "" ... "1.8.7" do
it "yields a LocalJumpError when passed no block" do
lambda { @io.each_byte }.should raise_error(LocalJumpError)
end
end
ruby_version_is "1.8.7" do
it "returns an Enumerator when passed no block" do
enum = @io.each_byte
enum.instance_of?(enumerator_class).should be_true
enum.each.first(10).should == [86, 111, 105, 99, 105, 32, 108, 97, 32, 108]
end
end
end
Version data entries
83 entries across 83 versions & 1 rubygems