test/-ext-/string/test_cstr.rb


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require 'test/unit'
require "-test-/string/string"

class Test_StringCStr < Test::Unit::TestCase
  Bug4319 = '[ruby-dev:43094]'

  def test_embed
    s = Bug::String.new("abcdef")
    s.set_len(3)
    assert_equal(0, s.cstr_term, Bug4319)
  end

  def test_long
    s = Bug::String.new("abcdef")*100000
    assert_equal(0, s.cstr_term, Bug4319)
  end

  WCHARS = [Encoding::UTF_16BE, Encoding::UTF_16LE, Encoding::UTF_32BE, Encoding::UTF_32LE]

  def test_wchar_embed
    WCHARS.each do |enc|
      s = Bug::String.new("ab".encode(enc))
      assert_nothing_raised(ArgumentError) {s.cstr_term}
    end
  end

  def test_wchar_long
    str = "abcdef"
    n = 100
    len = str.size * n
    WCHARS.each do |enc|
      s = Bug::String.new(str.encode(enc))*n
      assert_nothing_raised(ArgumentError) {s.cstr_term}
    end
  end
end