diff options
| -rw-r--r-- | lib/rubygems/user_interaction.rb | 32 | ||||
| -rw-r--r-- | test/rubygems/test_gem_silent_ui.rb | 6 |
2 files changed, 29 insertions, 9 deletions
diff --git a/lib/rubygems/user_interaction.rb b/lib/rubygems/user_interaction.rb index e632f418a9..c726fd21c1 100644 --- a/lib/rubygems/user_interaction.rb +++ b/lib/rubygems/user_interaction.rb @@ -616,18 +616,11 @@ class Gem::SilentUI < Gem::StreamUI # The SilentUI has no arguments as it does not use any stream. def initialize - reader, writer = nil, nil - - reader = File.open(IO::NULL, 'r') - writer = File.open(IO::NULL, 'w') - - super reader, writer, writer, false + io = NullIO.new + super io, io, io, false end def close - super - @ins.close - @outs.close end def download_reporter(*args) # :nodoc: @@ -637,4 +630,25 @@ class Gem::SilentUI < Gem::StreamUI def progress_reporter(*args) # :nodoc: SilentProgressReporter.new(@outs, *args) end + + ## + # An absolutely silent IO. + + class NullIO + def puts(*args) + end + + def print(*args) + end + + def flush + end + + def gets(*args) + end + + def tty? + false + end + end end diff --git a/test/rubygems/test_gem_silent_ui.rb b/test/rubygems/test_gem_silent_ui.rb index 355255fb48..d23d6f4cba 100644 --- a/test/rubygems/test_gem_silent_ui.rb +++ b/test/rubygems/test_gem_silent_ui.rb @@ -113,4 +113,10 @@ class TestGemSilentUI < Gem::TestCase assert_empty out, 'No output' assert_empty err, 'No output' end + + def test_new_without_dev_null + File.stub(:open, ->(path, mode) { raise Errno::ENOTCAPABLE if path == IO::NULL }) do + Gem::SilentUI.new + end + end end |