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direction_spec.rb
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direction_spec.rb
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require 'rspec'
require 'spec_helper'
require './lib/direction'
describe Direction do
describe '#turn_right' do
it 'should return the next value in the OPTIONS array' do
instance = Direction.new
direction = 'NORTH'
expect(instance.turn_right(direction)).to be_a String
expect(instance.turn_right(direction)).to eq 'EAST'
end
it 'should return nil if the direction is empty' do
instance = Direction.new
direction = ''
expect(instance.turn_right(direction)).to be_nil
end
end
describe '#turn_left' do
it 'should return the previous value in the OPTIONS array' do
instance = Direction.new
direction = 'NORTH'
expect(instance.turn_left(direction)).to be_a String
expect(instance.turn_left(direction)).to eq 'WEST'
end
it 'should return nil if the direction is empty' do
instance = Direction.new
direction = ''
expect(instance.turn_left(direction)).to be_nil
end
end
end