require 'rexml/document'

describe "REXML::Element#prefixes" do
  before :each do
    doc = REXML::Document.new("<a xmlns='1' xmlns:y='2'><b/><c xmlns:z='3'/></a>")
    @elem = doc.elements["//c"]
  end

  it "returns an array of the prefixes of the namespaces" do
    @elem.prefixes.should == ["y", "z"]
  end

  it "does not include the default namespace" do
    @elem.prefixes.include?("xmlns").should == false
  end

  it "returns an empty array if no namespace was defined" do
    doc = REXML::Document.new "<root><something/></root>"
    root = doc.elements["//root"]
    root.prefixes.should == []
  end
end
