Alek Ratzloff
1a73a62a2c
* train/2 takes a chain and a list of words to train them on * add_weight/4 takes a chain, a list of words (the key), the word it points to, and an optional increment which will increment the value of a weight, or insert the weight. Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
34 lines
813 B
Elixir
34 lines
813 B
Elixir
defmodule MarkovChainTest do
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use ExUnit.Case
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alias Omnibot.Contrib.Markov.Chain
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test "chain train works correctly" do
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chain = %Chain {order: 2}
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|> Chain.train(~w(foo bar baz))
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assert chain.chain == [
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{["bar", "baz"], %{nil => 1}},
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{["foo", "bar"], %{"baz" => 1}},
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]
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end
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test "chain add_weight works correctly" do
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chain = %Chain {order: 2}
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|> Chain.add_weight(["foo", "bar"], "baz")
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assert chain.chain == [
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{["foo", "bar"], %{"baz" => 1}}
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]
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chain = chain |> Chain.add_weight(["foo", "bar"], "baz", 2)
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assert chain.chain == [
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{["foo", "bar"], %{"baz" => 3}}
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]
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chain = chain |> Chain.add_weight(["foo", "bar"], "qux")
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assert chain.chain == [
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{["foo", "bar"], %{"baz" => 3, "qux" => 1}}
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]
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end
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end
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