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e786aa711d
* ext/io/wait/wait.c (io_wait_writable): this is easier to use than IO.select for a single IO object and is immune to the limitations/innefficiency of select() on platforms where poll/ppoll is available. patched by Eric Wong. [Feature #4646] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37785 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
108 lines
2 KiB
Ruby
108 lines
2 KiB
Ruby
# -*- coding: us-ascii -*-
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require 'test/unit'
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require 'timeout'
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require 'socket'
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begin
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require 'io/wait'
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rescue LoadError
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end
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class TestIOWait < Test::Unit::TestCase
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def setup
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if /mswin|mingw/ =~ RUBY_PLATFORM
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@r, @w = Socket.pair(Socket::AF_INET, Socket::SOCK_STREAM, 0)
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else
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@r, @w = IO.pipe
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end
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end
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def teardown
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@r.close unless @r.closed?
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@w.close unless @w.closed?
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end
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def test_nread
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assert_equal 0, @r.nread
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@w.syswrite "."
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sleep 0.1
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assert_equal 1, @r.nread
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end
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def test_nread_buffered
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@w.syswrite ".\n!"
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assert_equal ".\n", @r.read(2)
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assert_equal 1, @r.nread
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end
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def test_ready?
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refute @r.ready?, "shouldn't ready, but ready"
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@w.syswrite "."
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sleep 0.1
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assert @r.ready?, "should ready, but not"
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end
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def test_buffered_ready?
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@w.syswrite ".\n!"
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assert_equal ".\n", @r.gets
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assert @r.ready?
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end
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def test_wait
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assert_nil @r.wait(0)
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@w.syswrite "."
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sleep 0.1
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assert_equal @r, @r.wait(0)
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end
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def test_wait_buffered
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@w.syswrite ".\n!"
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assert_equal ".\n", @r.gets
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assert_equal true, @r.wait(0)
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end
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def test_wait_forever
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Thread.new { sleep 0.01; @w.syswrite "." }
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assert_equal @r, @r.wait
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end
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def test_wait_eof
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Thread.new { sleep 0.01; @w.close }
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assert_nil @r.wait
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end
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def test_wait_writable
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assert_equal @w, @w.wait_writable
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end
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def test_wait_writable_timeout
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assert_equal @w, @w.wait_writable(0.001)
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written = fill_pipe
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assert_nil @w.wait_writable(0.001)
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@r.read(written)
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assert_equal @w, @w.wait_writable(0.001)
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end
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def test_wait_writable_EPIPE
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fill_pipe
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@r.close
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assert_equal @w, @w.wait_writable
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end
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def test_wait_writable_closed
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@w.close
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assert_raises(IOError) { @w.wait_writable }
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end
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private
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def fill_pipe
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written = 0
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buf = " " * 4096
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begin
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written += @w.write_nonblock(buf)
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rescue Errno::EAGAIN
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return written
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end while true
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end
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end if IO.method_defined?(:wait)
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