t.Run("tcp-to-file", func(t *testing.T) { testSpliceToFile(t, "tcp", "file") })
	t.Run("unix-to-file", func(t *testing.T) { testSpliceToFile(t, "unix", "file") })
	t.Run("no-unixpacket", testSpliceNoUnixpacket)
	t.Run("no-unixgram", testSpliceNoUnixgram)
}

func testSpliceToFile(t *testing.T, upNet, downNet string) {
	t.Run("simple", spliceTestCase{upNet, downNet, 128, 128, 0}.testFile)