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-rw-r--r--test/io/wait/test_io_wait.rb36
1 files changed, 36 insertions, 0 deletions
diff --git a/test/io/wait/test_io_wait.rb b/test/io/wait/test_io_wait.rb
index 3cf967e467..676809cfc7 100644
--- a/test/io/wait/test_io_wait.rb
+++ b/test/io/wait/test_io_wait.rb
@@ -1,3 +1,4 @@
+# -*- coding: us-ascii -*-
require 'test/unit'
require 'timeout'
require 'socket'
@@ -69,4 +70,39 @@ class TestIOWait < Test::Unit::TestCase
Thread.new { sleep 0.01; @w.close }
assert_nil @r.wait
end
+
+ def test_wait_writable
+ assert_equal @w, @w.wait_writable
+ end
+
+ def test_wait_writable_timeout
+ assert_equal @w, @w.wait_writable(0.001)
+ written = fill_pipe
+ assert_nil @w.wait_writable(0.001)
+ @r.read(written)
+ assert_equal @w, @w.wait_writable(0.001)
+ end
+
+ def test_wait_writable_EPIPE
+ fill_pipe
+ @r.close
+ assert_equal @w, @w.wait_writable
+ end
+
+ def test_wait_writable_closed
+ @w.close
+ assert_raises(IOError) { @w.wait_writable }
+ end
+
+private
+
+ def fill_pipe
+ written = 0
+ buf = " " * 4096
+ begin
+ written += @w.write_nonblock(buf)
+ rescue Errno::EAGAIN
+ return written
+ end while true
+ end
end if IO.method_defined?(:wait)