require 'rexml/document'
require File.dirname(__FILE__) + '/../../../spec_helper'

describe "REXML::Document#new" do

  it "initializes context to {} if context is not specified" do
    d = REXML::Document.new("")
    d.context.should == {}
  end

  it "has empty attributes if source is nil" do
    d = REXML::Document.new(nil)
    d.elements.empty?.should == true
  end

  it "clones the context from source if source is a Document" do
    s = REXML::Document.new("")
    d = REXML::Document.new(s)
    d.context.should == s.context
  end

  it "clones source's attributes source if a Document" do
    s = REXML::Document.new("")
    s.attributes["some_attr"] = "some_val"
    d = REXML::Document.new(s)
    d.attributes.should == s.attributes
  end

  it "raises an error if source is not a Document, String or IO" do
    lambda {s = REXML::Document.new(3)}.should raise_error(RuntimeError)
  end

  it "expects source to be a valid XML document but it won't validate it" do
    lambda {s = REXML::Document.new("Invalid document")}.should_not raise_error(Exception)
  end
end