rpl.rb/spec/core_spec.rb

# frozen_string_literal: true

require 'minitest/autorun'

require 'rpl'

class TestParser < MiniTest::Test
  def test_stack_extract
    interpreter = Rpl.new( [{ value: 1, type: :numeric },
                            { value: 2, type: :numeric }] )
    args = interpreter.stack_extract [:any]
    assert_equal [{ value: 1, type: :numeric }],
                 interpreter.stack
    assert_equal [{ value: 2, type: :numeric }],
                 args

    interpreter = Rpl.new( [{ value: 'test', type: :string },
                            { value: 2, type: :numeric }] )
    args = interpreter.stack_extract [[:numeric], :any]
    assert_equal [],
                 interpreter.stack
    assert_equal [{ value: 2, type: :numeric },
                  { value: 'test', type: :string }],
                 args
  end

  def test_stringify
    assert_equal '∞',
                 Rpl.new.stringify( { value: Float::INFINITY,
                                      base: 10,
                                      type: :numeric } )
  end
end