# encoding: UTF-8

# Copyright 2012 Twitter, Inc
# http://www.apache.org/licenses/LICENSE-2.0

require 'spec_helper'

include TwitterCldr::Shared

describe TerritoriesContainment do
  describe '.parents' do
    it 'returns the parent territory' do
      expect(TerritoriesContainment.parents('RU')).to eq(['151'])
    end

    it 'returns multiple parents' do
      expect(TerritoriesContainment.parents('013')).to match_array(%w[003 019 419])
    end

    it 'returns [] when given a top-level territory' do
      expect(TerritoriesContainment.parents('001')).to eq([])
    end

    it 'raises an exception when given an invalid territory code' do
      expect { TerritoriesContainment.parents('UN') }.to raise_exception(ArgumentError, 'unknown territory code "UN"')
    end
  end

  describe '.children' do
    it 'returns the immediate children of the territory' do
      expect(TerritoriesContainment.children('151')).to eq(%w[BG BY CZ HU MD PL RO RU SK SU UA])
    end

    it 'returns codes with leading zeros' do
      expect(TerritoriesContainment.children('009')).to eq(%w[053 054 057 061 QO])
    end

    it 'returns an empty array when given a bottom-level territory' do
      expect(TerritoriesContainment.children('RU')).to eq([])
    end

    it 'raises an exception when given an invalid territory code' do
      expect { TerritoriesContainment.children('UN') }.to raise_exception(ArgumentError, 'unknown territory code "UN"')
    end
  end

  describe '.contains?' do
    it 'returns true if the first territory (immediately) contains the second one' do
      expect(TerritoriesContainment.contains?('151', 'RU')).to eq(true)
    end

    it 'returns true if the first territory (non-immediately) contains the second one' do
      expect(TerritoriesContainment.contains?('419', 'BZ')).to eq(true)
    end

    it 'returns true if a territory is part of multiple parent territories' do
      expect(TerritoriesContainment.contains?('019', '013')).to eq(true)
      expect(TerritoriesContainment.contains?('419', '013')).to eq(true)
    end

    it 'returns true if the first territory is a top-level territory' do
      expect(TerritoriesContainment.contains?('001', '145')).to eq(true)
    end

    it 'returns false if the first territory does not contain the second one' do
      expect(TerritoriesContainment.contains?('419', 'RU')).to eq(false)
    end

    it 'returns false if the second territory is a top-level territory' do
      expect(TerritoriesContainment.contains?('419', '001')).to eq(false)
    end

    it 'returns false if both territories are identical' do
      expect(TerritoriesContainment.contains?('RU', 'RU')).to eq(false)
    end

    it 'raises an exception is the first territory is invalid' do
      expect { TerritoriesContainment.contains?('UN', 'RU') }.to raise_exception(ArgumentError, 'unknown territory code "UN"')
    end

    it 'raises an exception is the second territory is invalid' do
      expect { TerritoriesContainment.contains?('RU', 'UN') }.to raise_exception(ArgumentError, 'unknown territory code "UN"')
    end
  end
end