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-rw-r--r--test/ruby/test_io.rb4
1 files changed, 2 insertions, 2 deletions
diff --git a/test/ruby/test_io.rb b/test/ruby/test_io.rb
index e0350452d5..7739535ecd 100644
--- a/test/ruby/test_io.rb
+++ b/test/ruby/test_io.rb
@@ -1249,13 +1249,13 @@ class TestIO < Test::Unit::TestCase
def test_initialize
t = make_tempfile
- fd = IO.sysopen(t.path)
+ fd = IO.sysopen(t.path, "w")
assert_kind_of(Integer, fd)
f = IO.new(fd, "w")
f.write("FOO\n")
f.close
- assert_equal("foo\nbar\nbaz\n", File.read(t.path))
+ assert_equal("FOO\n", File.read(t.path))
f = open(t.path)
assert_raise(RuntimeError) do