ruby--ruby/test/-ext-/test_printf.rb

require 'test/unit'
require "-test-/printf"

class Test_SPrintf < Test::Unit::TestCase
  def to_s
    "#{self.class}:#{object_id}"
  end

  def inspect
    "<#{self.class}:#{object_id}>"
  end

  def test_int
    assert_match(/\A<-?\d+>\z/, Bug::Printf.i(self))
  end

  def test_to_str
    assert_equal("<#{self.class}:#{object_id}>", Bug::Printf.s(self))
  end

  def test_inspect
    assert_equal("{<#{self.class}:#{object_id}>}", Bug::Printf.v(self))
  end

  def test_quote
    assert_equal('["\n"]', Bug::Printf.q("\n"))
    assert_equal('[aaa]', Bug::Printf.q('aaa'))
    assert_equal('[a a]', Bug::Printf.q('a a'))
  end

  def test_encoding
    def self.to_s
      "\u{3042 3044 3046 3048 304a}"
    end
    assert_equal("<\u{3042 3044 3046 3048 304a}>", Bug::Printf.s(self))
  end

  def test_taint
    obj = Object.new.taint
    assert_equal({to_s: true, inspect: true},
                 {
                   to_s: Bug::Printf.s(obj).tainted?,
                   inspect: Bug::Printf.v(obj).tainted?,
                 })
  end

  def test_untrust
    obj = Object.new.untrust
    assert_equal({to_s: true, inspect: true},
                 {
                   to_s: Bug::Printf.s(obj).untrusted?,
                   inspect: Bug::Printf.v(obj).untrusted?,
                 })
  end

  def test_string_prec
    assert_equal("a", Bug::Printf.("s", "a", prec: 3)[0])
    assert_equal("  a", Bug::Printf.("s", "a", width: 3, prec: 3)[0])
    assert_equal("a  ", Bug::Printf.("s", "a", minus: true, width: 3, prec: 3)[0])
  end
end