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Versions: 233
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Contents
require 'generator/exercise_case'
class AlphameticsCase < Generator::ExerciseCase
def workload
body =
"input = %s\n" % input,
"expected = %s\n" % expect,
"assert_equal expected, Alphametics.solve(input)"
indent(body, 4)
end
def runtime_comment
if slow?
comments =
'',
"# The obvious algorithm can take a long time to solve this puzzle,\n",
"# but an optimised solution can solve it fairly quickly.\n",
"# (It's OK to submit your solution without getting this test to pass.)\n"
indent(comments, 2)
end
end
private
def input
"'#{puzzle}'"
end
def expect
expected.nil? ? {} : expected_values
end
def slow?
(expected||{}).size > 7
end
def expected_values
"{ #{indent(expected_values_as_lines, 17)} }"
end
def expected_values_as_lines
lines = expected_values_as_strings.each_slice(4).map { |line| line.join(', ') }
add_trailing_comma_and_newline(lines)
end
def expected_values_as_strings
expected.sort.map { |(key, value)| "'#{key}' => #{value}" }
end
def add_trailing_comma_and_newline(lines)
lines[0...-1].map { |line| "#{line},\n" }.push(lines.last)
end
def indent(lines, spaces)
lines.join(' ' * spaces)
end
end
Version data entries
233 entries across 233 versions & 1 rubygems