mirror of
https://github.com/avitex/elixir-glicko
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c1089996d3
In an effort to give names to core concepts in the library, replace the current way of passing around tuples (of varying length and content) with appropriately named structs. In the interest of keeping the patch focused: primarily replace internal implementation of the added struct modules, and keep the interfaces for creation, conversion (player v1 to v2, and vice versa), and field access as they currently are.
68 lines
1.9 KiB
Elixir
68 lines
1.9 KiB
Elixir
defmodule Glicko.PlayerTest do
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use ExUnit.Case
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alias Glicko.Player
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doctest Player
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@valid_v1_base %Player.V1{rating: 1.0, rating_deviation: 2.0}
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@valid_v2_base %Player.V2{rating: 1.0, rating_deviation: 2.0, volatility: 3.0}
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test "create v1" do
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assert @valid_v1_base == Player.new_v1(rating: 1.0, rating_deviation: 2.0)
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end
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test "create v2" do
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assert @valid_v2_base == Player.new_v2(rating: 1.0, rating_deviation: 2.0, volatility: 3.0)
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end
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test "convert player v1 -> v2" do
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assert Player.new_v2(
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rating: Player.scale_rating_to(1.0, :v2),
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rating_deviation: Player.scale_rating_deviation_to(2.0, :v2),
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volatility: 3.0
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) == Player.to_v2(@valid_v1_base, 3.0)
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end
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test "convert player v2 -> v1" do
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assert Player.new_v1(
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rating: Player.scale_rating_to(1.0, :v1),
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rating_deviation: Player.scale_rating_deviation_to(2.0, :v1)
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) == Player.to_v1(@valid_v2_base)
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end
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test "convert player v1 -> v1" do
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assert @valid_v1_base == Player.to_v1(@valid_v1_base)
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end
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test "convert player v2 -> v2" do
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assert @valid_v2_base == Player.to_v2(@valid_v2_base)
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end
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test "scale rating v1 -> v2" do
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assert_in_delta Player.scale_rating_to(1673.7178, :v2), 1.0, 0.1
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end
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test "scale rating v2 -> v1" do
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assert_in_delta Player.scale_rating_to(1.0, :v1), 1673.7178, 0.1
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end
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test "scale rating deviation v1 -> v2" do
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assert_in_delta Player.scale_rating_deviation_to(173.7178, :v2), 1.0, 0.1
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end
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test "scale rating deviation v2 -> v1" do
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assert_in_delta Player.scale_rating_deviation_to(1.0, :v1), 173.7178, 0.1
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end
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test "rating interval" do
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assert {rating_low, rating_high} =
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[rating: 1850, rating_deviation: 50]
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|> Player.new_v2()
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|> Player.rating_interval()
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assert_in_delta rating_low, 1750, 0.1
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assert_in_delta rating_high, 1950, 0.1
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end
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end
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