1 files changed, 28 insertions, 0 deletions
diff --git a/test/test_sendfile.rb b/test/test_sendfile.rb
new file mode 100644
index 0000000..a25b711
--- /dev/null
+++ b/test/test_sendfile.rb
@@ -0,0 +1,28 @@
+# -*- encoding: binary -*-
+require 'test/unit'
+require 'tempfile'
+require 'socket'
+$-w = true
+require 'sleepy_penguin'
+
+class TestSendfile < Test::Unit::TestCase
+  def test_linux_sendfile
+    rd, wr = UNIXSocket.pair
+    size = 5
+    src = Tempfile.new('ruby_sf_src')
+    assert_equal 0, SleepyPenguin.linux_sendfile(wr, src, size)
+    str = 'abcde'.freeze
+    assert_equal str.bytesize, src.syswrite(str)
+    assert_equal 0, SleepyPenguin.linux_sendfile(wr, src, size)
+    src.sysseek(0, IO::SEEK_SET)
+    assert_equal str.bytesize,
+                 SleepyPenguin.linux_sendfile(wr, src, size, offset: 0)
+    assert_equal str, rd.read(size)
+    assert_equal 0, src.sysseek(0, IO::SEEK_CUR), 'handle offset not changed'
+    assert_equal 3, SleepyPenguin.linux_sendfile(wr, src, 3)
+    assert_equal 3, src.sysseek(0, IO::SEEK_CUR), 'handle offset changed'
+  ensure
+    [ rd, wr ].compact.each(&:close)
+    src.close! if src
+  end
+end