From ef525b012a709077ea2797e8642fae0b61234063 Mon Sep 17 00:00:00 2001 From: Samuel Williams Date: Mon, 9 May 2022 11:03:04 +1200 Subject: Explicit handling of frozen strings in `IO::Buffer#for`. (#5892) --- test/ruby/test_io_buffer.rb | 36 ++++++++++++++++++++---------------- 1 file changed, 20 insertions(+), 16 deletions(-) (limited to 'test/ruby') diff --git a/test/ruby/test_io_buffer.rb b/test/ruby/test_io_buffer.rb index 7e3b467ed5..e3f7021b26 100644 --- a/test/ruby/test_io_buffer.rb +++ b/test/ruby/test_io_buffer.rb @@ -88,30 +88,34 @@ class TestIOBuffer < Test::Unit::TestCase def test_string_mapped string = "Hello World" buffer = IO::Buffer.for(string) - refute buffer.readonly? - - # Cannot modify string as it's locked by the buffer: - assert_raise RuntimeError do - string[0] = "h" - end - - buffer.set_value(:U8, 0, "h".ord) - - # Buffer releases it's ownership of the string: - buffer.free - - assert_equal "hello World", string - string[0] = "H" - assert_equal "Hello World", string + assert buffer.readonly? end def test_string_mapped_frozen string = "Hello World".freeze buffer = IO::Buffer.for(string) - assert buffer.readonly? end + def test_string_mapped_mutable + string = "Hello World" + IO::Buffer.for(string) do |buffer| + refute buffer.readonly? + + # Cannot modify string as it's locked by the buffer: + assert_raise RuntimeError do + string[0] = "h" + end + + buffer.set_value(:U8, 0, "h".ord) + + # Buffer releases it's ownership of the string: + buffer.free + + assert_equal "hello World", string + end + end + def test_non_string not_string = Object.new -- cgit v1.2.3