File: register_spec.rb

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# frozen_string_literal: true

RSpec.describe Necromancer, ".register" do
  it "allows ro register converter" do
    converter = described_class.new
    stub_const("UpcaseConverter", Struct.new(:source, :target) do
      def call(value, **_options)
        value.to_s.upcase
      end
    end)

    upcase_converter = UpcaseConverter.new(:string, :upcase)

    expect(converter.register(upcase_converter)).to eq(true)
    expect(converter.convert("magic").to(:upcase)).to eq("MAGIC")
  end
end