require 'spec_helper'

describe( RCAP::CAP_1_0::Circle ) do
  describe( 'should not be valid if' ) do
    before( :each ) do
      @circle = RCAP::CAP_1_0::Circle.new do |circle|
        circle.lattitude = 0
        circle.longitude = 0
        circle.radius = 1
      end
      @circle.should( be_valid )
    end

    it( 'does not have a lattitude defined' ) do
      @circle.lattitude = nil
      @circle.should_not( be_valid )
    end

    it( 'does not have a longitude defined' ) do
      @circle.longitude = nil
      @circle.should_not( be_valid )
    end

    it( 'does not have a radius defined' ) do
      @circle.radius = nil
      @circle.should_not( be_valid )
    end

    it( 'does not have a numeric radius' ) do
      @circle.radius = "not a number"
      @circle.should_not( be_valid )
    end

    it( 'does not have a positive radius' ) do
      @circle.radius = -1
      @circle.should_not( be_valid )
    end
  end

  context( 'on initialisation' ) do
    context( 'from XML' ) do
      before( :each ) do
        @original_circle = RCAP::CAP_1_0::Circle.new do |circle|
          circle.radius = 10.5
          circle.lattitude = 30
          circle.longitude = 60
        end
        @alert = RCAP::CAP_1_0::Alert.new
        @alert.add_info.add_area.add_circle do |circle|
          circle.radius = 10.5
          circle.lattitude = 30
          circle.longitude = 60
        end
        @xml_string = @alert.to_xml
        @xml_document = REXML::Document.new( @xml_string )
        @info_element = RCAP.xpath_first( @xml_document.root, RCAP::CAP_1_0::Info::XPATH, RCAP::CAP_1_0::Alert::XMLNS )
        @area_element = RCAP.xpath_first( @info_element, RCAP::CAP_1_0::Area::XPATH, RCAP::CAP_1_0::Alert::XMLNS )
        @circle_element = RCAP.xpath_first( @area_element, RCAP::CAP_1_0::Circle::XPATH, RCAP::CAP_1_0::Alert::XMLNS )
        @circle = RCAP::CAP_1_0::Circle.from_xml_element( @circle_element )
      end

      it( 'should parse the radius correctly' ) do
        @circle.radius.should == @original_circle.radius
      end

      it( 'should parse the lattitude and longitude correctly' ) do
        @circle.lattitude.should == @original_circle.lattitude
        @circle.longitude.should == @original_circle.longitude
      end
    end

    context( 'from a hash' ) do
      before( :each ) do
      @original_circle = RCAP::CAP_1_0::Circle.new do |circle|
        circle.radius = 10.5
        circle.lattitude = 30
        circle.longitude = 60
      end
        @circle = RCAP::CAP_1_0::Circle.from_h( @original_circle.to_h )
      end

      it( 'should set the radius correctly' ) do
        @circle.radius.should == @original_circle.radius
      end

      it( 'should parse the lattitude and longitude correctly' ) do
        @circle.lattitude.should == @original_circle.lattitude
        @circle.longitude.should == @original_circle.longitude
      end
    end
  end

  context( 'when exported' ) do
    before( :each ) do
      @circle = RCAP::CAP_1_0::Circle.new do |circle|
        circle.radius = 10.5
        circle.lattitude = 30
        circle.longitude = 60
      end
    end

    context( 'to hash' ) do
      it( 'should be correct' ) do
        @circle.to_h.should == { 'radius' => 10.5, 'lattitude' => 30, 'longitude' => 60 }
      end
    end
  end
end