From ffe99774bb0b64644dc419ba83d131218854d404 Mon Sep 17 00:00:00 2001 From: Mario Visic Date: Tue, 29 Oct 2013 13:04:04 +1100 Subject: Fix issue with Kernel#silence_stream leaking file descriptors Calling Kernel#silence_stream creates a new file descriptor which isn't closed after it is used. As a result calling silence_stream multiple times leads to a build up of loose file descriptors and can cause issues in environments where garbage collection isn't run often. --- activesupport/test/core_ext/kernel_test.rb | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'activesupport/test') diff --git a/activesupport/test/core_ext/kernel_test.rb b/activesupport/test/core_ext/kernel_test.rb index b8951de402..18b251173f 100644 --- a/activesupport/test/core_ext/kernel_test.rb +++ b/activesupport/test/core_ext/kernel_test.rb @@ -38,6 +38,22 @@ class KernelTest < ActiveSupport::TestCase # Skip if we can't STDERR.tell end + def test_silence_stream + old_stream_position = STDOUT.tell + silence_stream(STDOUT) { STDOUT.puts 'hello world' } + assert_equal old_stream_position, STDOUT.tell + rescue Errno::ESPIPE + # Skip if we can't stream.tell + end + + def test_silence_stream_closes_file_descriptors + stream = StringIO.new + dup_stream = StringIO.new + stream.stubs(:dup).returns(dup_stream) + dup_stream.expects(:close) + silence_stream(stream) { stream.puts 'hello world' } + end + def test_quietly old_stdout_position, old_stderr_position = STDOUT.tell, STDERR.tell quietly do -- cgit v1.2.3