# -*- encoding: binary -*-
require_relative '../../spec_helper'

describe "Encoding#replicate" do
  before :all do
    @i = 0
  end

  before :each do
    @i += 1
    @prefix = "RS#{@i}"
  end

  it "returns a replica of ASCII" do
    name = @prefix + '-ASCII'
    e = Encoding::ASCII.replicate(name)
    e.name.should == name
    Encoding.find(name).should == e

    "a".force_encoding(e).valid_encoding?.should be_true
    "\x80".force_encoding(e).valid_encoding?.should be_false
  end

  it "returns a replica of UTF-8" do
    name = @prefix + 'UTF-8'
    e = Encoding::UTF_8.replicate(name)
    e.name.should == name
    Encoding.find(name).should == e

    "a".force_encoding(e).valid_encoding?.should be_true
    "\u3042".force_encoding(e).valid_encoding?.should be_true
    "\x80".force_encoding(e).valid_encoding?.should be_false
  end

  it "returns a replica of UTF-16BE" do
    name = @prefix + 'UTF-16-BE'
    e = Encoding::UTF_16BE.replicate(name)
    e.name.should == name
    Encoding.find(name).should == e

    "a".force_encoding(e).valid_encoding?.should be_false
    "\x30\x42".force_encoding(e).valid_encoding?.should be_true
    "\x80".force_encoding(e).valid_encoding?.should be_false
  end

  it "returns a replica of ISO-2022-JP" do
    name = @prefix + 'ISO-2022-JP'
    e = Encoding::ISO_2022_JP.replicate(name)
    Encoding.find(name).should == e

    e.name.should == name
    e.dummy?.should be_true
  end

  # NOTE: it's unclear of the value of this (for the complexity cost of it),
  # but it is the current CRuby behavior.
  it "can be associated with a String" do
    name = @prefix + '-US-ASCII'
    e = Encoding::US_ASCII.replicate(name)
    e.name.should == name
    Encoding.find(name).should == e

    s = "abc".force_encoding(e)
    s.encoding.should == e
    s.encoding.name.should == name
  end
end