File generated from /Users/batate/mastery/lib/mastery/core/quiz_validator.ex by COVER 2019-03-16 at 12:03:51

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        |  defmodule Mastery.Core.QuizValidator do
        |    import Mastery.Core.Validator
        |  
        |    def errors(fields) when is_map(fields) do
        |      [ ]
        |      |> require(fields, :title, &validate_title/1)
     0..|      |> optional(fields, :mastery, &validate_mastery/1)
        |    end
        |    def errors(_fields), do: [{nil, "A map of fields is required"}]
        |  
        |    def validate_title(title) when is_binary(title) do
     0..|      if String.match?(title, ~r{\S}) do
        |        :ok
        |      else
        |        {:error, "can't be blank"}
        |      end
        |    end
        |    def validate_title(_title), do: {:error, "must be a string"}
        |  
        |    def validate_mastery(mastery) when is_integer(mastery) do
     0..|      if mastery >= 1 do
        |        :ok
        |      else
        |        {:error, "must be greater than zero"}
        |      end
        |    end
        |    def validate_mastery(_mastery), do: {:error, "must be an integer"}
        |  end