tournament 1.3.0: Add simple start cases, remove invalid lines

[petertseng]

exercism/problem-specifications#773

[petertseng]

Note that this test file was created with a test generator, as suggested by #280. The generator follows:

require 'json'

data = JSON.parse(File.read(File.join(__dir__, 'canonical-data.json')))

def quote(s)
  ?" + s + ?"
end

def fmt(s)
  return '""' if s.empty?
  return quote(s.first) if s.size == 1
  indent = ' ' * 8
  "#{quote(s.first + '\n')}.to_string() +\n" + s[1...-1].map { |l| "#{indent}#{quote(l + '\n')} +\n" }.join + indent + quote(s.last)
end

puts 'extern crate tournament;'

data['cases'].each_with_index { |c, i|
  puts
  puts '#[test]'
  puts '#[ignore]' if i != 0
  puts "fn #{c['description'].tr(' ', ?_).tr(',()', '').downcase}() {"
  puts "    let input = #{fmt(c['input'])};"
  puts "    let expected = #{fmt(c['expected'])};"
  puts
  puts '    assert_eq!(tournament::tally(&input), expected);'
  puts ?}
}

Unfortunately the generator seems unsuitable for submitting to this repository, as it was not written in Rust.

That of course does not affect the validity of this PR.

[ijanos]

Although I do prefer a tool written in rust, I have no problem adding a test generator written in another language to the repo. Do we have some rule against this?

[petertseng]

I have no problem adding a test generator written in another language to the repo. Do we have some rule against this?

There is no rule; the only consideration is the concern that it will hinder contributions. If someone comes to xrust thinking the only necessary language to know is Rust, but suddenly, surprise, you also need to know a different language to be able to contribute to the generators, that's not ideal.

I'm not going to have any qualms about writing and posting quick scripts until a generator written in Rust comes along and I could maybe be convinced that adding them to the repo is a good idea, but either way they'll be availble until then.

[petertseng]

but suddenly, surprise, you also need to know a different language to be able to contribute to the generators

Of course, my comment conveniently ignored the fact that we have shell scripts in this repository too