test_wbuf: avoid floating point arg to read_nonblock

This is a legitimate bug in our code caught by Rubinius.
MRI strangely just truncates.  I suppose that makes sense
coming from some systems.

1 files changed, 1 insertions, 1 deletions

diff --git a/test/test_wbuf.rb b/test/test_wbuf.rb
index a7c4587..0923eb0 100644
--- a/test/test_wbuf.rb
+++ b/test/test_wbuf.rb
@@ -33,7 +33,7 @@ class TestWbuf < Testcase
         if wait
           r = IO.select([b,done[0]], nil, nil, 5)
         end
-        b.read_nonblock((rand * 1024) + 666, buf)
+        b.read_nonblock((rand * 1024).to_i + 666, buf)
         wait = (r[0] & done).empty?
       rescue Errno::EAGAIN
         break