fix test case: poll can't use for file descriptor on most platform

tests/330-poll.phpt

@@ -1,21 +1,45 @@
 --TEST--
-Check for fs read and close
+Check for poll read and close
 --FILE--
 <?php
-$fd = fopen("testfile","w+");
+$socket = stream_socket_server("tcp://0.0.0.0:9999", $errno, $errstr);
+stream_set_blocking($socket, 0);
+
+$poll = uv_poll_init(uv_default_loop(), $socket);
+uv_poll_start($poll, UV::READABLE, function($poll, $stat, $ev, $socket){
+    $conn = stream_socket_accept($socket);
+
+    uv_poll_stop($poll);
+    $pp = uv_poll_init(uv_default_loop(), $conn);
+    uv_poll_start($pp, UV::WRITABLE, function($poll, $stat, $ev, $conn) use (&$pp){
 
-$poll = uv_poll_init(uv_default_loop(), $fd);
-uv_poll_start($poll, UV::WRITABLE, function($poll, $stat, $ev, $conn){
-        fwrite($conn, "Hello");
-        fclose($conn);
-	$data = file_get_contents("testfile");
-        if ($data == "Hello") {
-		echo "OK";
-	}
-        unlink("testfile");
         uv_poll_stop($poll);
+        uv_fs_write(uv_default_loop(), $conn, "OK", -1, function($conn, $nwrite){
+            fclose($conn);
+        });
+    });
 });
 
+$address = uv_ip4_addr("0.0.0.0","9999");
+$tcp = uv_tcp_init();
+uv_tcp_connect($tcp, $address, function($client, $stat){
+    $request = <<<EOF
+HELO
+EOF;
+    uv_write($client,$request,function($client, $stat){
+        if ($stat == 0) {
+            uv_read_start($client,function($client, $nread, $buffer){
+                echo "$buffer\n";
+                //var_dump($buffer);
+                uv_close($client);
+            });
+        } else {
+            uv_close($client);
+        }
+    });
+});
+
+
 uv_run();
 --EXPECT--
 OK