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glicko-elixir/test/glicko_test.exs
2017-11-29 12:11:35 +11:00

39 lines
1.3 KiB
Elixir

defmodule GlickoTest do
use ExUnit.Case
alias Glicko.{
Player,
Result,
}
doctest Glicko
@player [rating: 1500, rating_deviation: 200] |> Player.new_v1 |> Player.to_v2
@results [
Result.new(Player.new_v1([rating: 1400, rating_deviation: 30]), :win),
Result.new(Player.new_v1([rating: 1550, rating_deviation: 100]), :loss),
Result.new(Player.new_v1([rating: 1700, rating_deviation: 300]), :loss),
]
@valid_player_rating_after_results 1464.06 |> Player.scale_rating_to(:v2)
@valid_player_rating_deviation_after_results 151.52 |> Player.scale_rating_deviation_to(:v2)
@valid_player_volatility_after_results 0.05999
@valid_player_rating_deviation_after_no_results 200.2714 |> Player.scale_rating_deviation_to(:v2)
test "new rating (with results)" do
player = Glicko.new_rating(@player, @results, [system_constant: 0.5])
assert_in_delta Player.rating(player), @valid_player_rating_after_results, 1.0e-4
assert_in_delta Player.rating_deviation(player), @valid_player_rating_deviation_after_results, 1.0e-4
assert_in_delta Player.volatility(player), @valid_player_volatility_after_results, 1.0e-5
end
test "new rating (no results)" do
player = Glicko.new_rating(@player, [])
assert_in_delta Player.rating_deviation(player), @valid_player_rating_deviation_after_no_results, 1.0e-4
end
end