spec/ruby/library/rexml/element/delete_element_spec.rb


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require_relative '../../../spec_helper'

ruby_version_is ''...'3.0' do
  require 'rexml/document'

  describe "REXML::Element#delete_element" do
    before :each do
      @root = REXML::Element.new("root")
    end

    it "deletes the child element" do
      node = REXML::Element.new("some_node")
      @root.add_element node
      @root.delete_element node
      @root.elements.size.should == 0
    end

    it "deletes a child via XPath" do
      @root.add_element "some_node"
      @root.delete_element "some_node"
      @root.elements.size.should == 0
    end

    it "deletes the child at index" do
      @root.add_element "some_node"
      @root.delete_element 1
      @root.elements.size.should == 0
    end

    # According to the docs this should return the deleted element
    # but it won't if it's an Element.
    it "deletes Element and returns it" do
      node = REXML::Element.new("some_node")
      @root.add_element node
      del_node = @root.delete_element node
      del_node.should == node
    end

    # Note how passing the string will return the removed element
    # but passing the Element as above won't.
    it "deletes an element and returns it" do
      node = REXML::Element.new("some_node")
      @root.add_element node
      del_node = @root.delete_element "some_node"
      del_node.should == node
    end

    it "returns nil unless element exists" do
      @root.delete_element("something").should == nil
    end
  end
end