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require 'test/unit'
require 'timeout'
begin
require 'io/wait'
rescue LoadError
end
class TestIOWait < Test::Unit::TestCase
def setup
@r, @w = IO.pipe
end
def teardown
@r.close unless @r.closed?
@w.close unless @w.closed?
end
def test_nread
return if /mswin/ =~ RUBY_PLATFORM
assert_equal 0, @r.nread
@w.syswrite "."
assert_equal 1, @r.nread
end
def test_nread_buffered
return if /mswin/ =~ RUBY_PLATFORM
@w.syswrite ".\n!"
assert_equal ".\n", @r.read(2)
assert_equal 1, @r.nread
end
def test_ready?
return if /mswin/ =~ RUBY_PLATFORM
refute @r.ready?
@w.syswrite "."
assert @r.ready?
end
def test_buffered_ready?
@w.syswrite ".\n!"
assert_equal ".\n", @r.gets
assert @r.ready?
end
def test_wait
return if /mswin/ =~ RUBY_PLATFORM
assert_nil @r.wait(0)
@w.syswrite "."
assert_equal @r, @r.wait(0)
end
def test_wait_buffered
return if /mswin/ =~ RUBY_PLATFORM
@w.syswrite ".\n!"
assert_equal ".\n", @r.gets
assert_equal true, @r.wait(0)
end
def test_wait_forever
return if /mswin/ =~ RUBY_PLATFORM
Thread.new { sleep 0.01; @w.syswrite "." }
assert_equal @r, @r.wait
end
def test_wait_eof
return if /mswin/ =~ RUBY_PLATFORM
Thread.new { sleep 0.01; @w.close }
assert_nil @r.wait
end
end if IO.method_defined?(:wait)
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