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require 'test_helper'
describe LinkedList::Node do
let(:node) { create_node('foo') }
describe 'instantiation' do
it 'assigns data' do
assert_equal 'foo', node.data
end
it 'assigns nil to next' do
assert_nil node.next
end
it 'assigns nil to prev' do
assert_nil node.prev
end
end
describe 'accessors' do
it '#data' do
node.data = 'bar'
assert_equal 'bar', node.data
end
it '#next' do
node.next = 'bar'
assert_equal 'bar', node.next
end
it '#prev' do
node.prev = 'xyz'
assert_equal 'xyz', node.prev
end
end
describe 'conversion' do
it '#to_node returns self' do
assert_equal node, node.to_node
end
end
end
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