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