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Stored size: 1.99 KB
Contents
#!/usr/bin/env ruby
require 'minitest/autorun'
require_relative 'dominoes'
# Common test data version: <%= canonical_data_version %> <%= abbreviated_commit_hash %>
class DominoesTest < Minitest::Test
<% test_cases.each_with_index do |test_case, idx| %>
def <%= test_case.name %>
<%= test_case.skipped(idx) %>
<%= test_case.workload %>
end
<% end %>
<%= IO.read(XRUBY_LIB + '/bookkeeping.md') %>
def test_bookkeeping
skip
assert_equal <%= version %>, BookKeeping::VERSION
end
# It's infeasible to use example-based tests for this exercise,
# because the list of acceptable answers for a given input can be quite large.
# Instead, we verify certain properties of a correct chain.
def assert_correct_chain(input_dominoes, output_chain)
refute_nil output_chain, "There should be a chain for #{input_dominoes}"
assert_same_dominoes(input_dominoes, output_chain)
return if output_chain.empty?
assert_consecutive_dominoes_match(output_chain)
assert_dominoes_at_end_match(output_chain)
end
def assert_same_dominoes(input_dominoes, output_chain)
input_normal = input_dominoes.map(&:sort).sort
output_normal = output_chain.map(&:sort).sort
assert_equal input_normal, output_normal,
'Dominoes used in the output must be the same as the ones given in the input'
end
def assert_consecutive_dominoes_match(chain)
chain.each_cons(2).with_index { |(d1, d2), i|
assert_equal d1.last, d2.first,
"In chain #{chain}, right end of domino #{i} (#{d1}) and left end of domino #{i + 1} (#{d2}) must match"
}
end
def assert_dominoes_at_end_match(chain)
first_domino = chain.first
last_domino = chain.last
assert_equal first_domino.first, last_domino.last,
"In chain #{chain}, left end of first domino (#{first_domino}) and right end of last domino (#{last_domino}) must match"
end
def refute_correct_chain(input_dominoes, output_chain)
assert_nil output_chain, "There should be no chain for #{input_dominoes}"
end
end
Version data entries
41 entries across 41 versions & 1 rubygems