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require 'test_helper'
describe LinkedList::Conversions do
describe 'Node()' do
it 'returns self if node is given' do
node = create_node('foo')
assert_equal LinkedList::Conversions.Node(node), node
end
it 'returns new node' do
assert_instance_of LinkedList::Node,
LinkedList::Conversions.Node('foo')
end
end
describe 'List()' do
it 'returns self if list is given' do
list = create_list
assert_equal LinkedList::Conversions.List(list), list
end
it 'returns list with nodes made from array' do
list = LinkedList::Conversions.List([1, 2])
assert_equal [1, 2], [list.first, list.last]
end
it 'returns new list with one node' do
list = LinkedList::Conversions.List('foo')
assert_equal 'foo', list.first
end
end
end
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