stream_base: expose `bytesRead` getter

This will provide `bytesRead` data on consumed sockets.

Fix: #3021
PR-URL: https://github.com/nodejs/node/pull/6284
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

1 files changed, 37 insertions, 0 deletions

diff --git a/test/parallel/test-net-bytes-read.js b/test/parallel/test-net-bytes-read.js
new file mode 100644
index 0000000000..ba2bc160d0
--- /dev/null
+++ b/test/parallel/test-net-bytes-read.js
@@ -0,0 +1,37 @@
+'use strict';
+
+const common = require('../common');
+const assert = require('assert');
+const net = require('net');
+
+const big = Buffer.alloc(1024 * 1024);
+
+const server = net.createServer((socket) => {
+  socket.end(big);
+  server.close();
+}).listen(common.PORT, () => {
+  let prev = 0;
+
+  function checkRaise(value) {
+    assert(value > prev);
+    prev = value;
+  }
+
+  const socket = net.connect(common.PORT, () => {
+    socket.on('data', (chunk) => {
+      checkRaise(socket.bytesRead);
+    });
+
+    socket.on('end', common.mustCall(() => {
+      assert.equal(socket.bytesRead, prev);
+      assert.equal(big.length, prev);
+    }));
+
+    socket.on('close', common.mustCall(() => {
+      assert(!socket._handle);
+      assert.equal(socket.bytesRead, prev);
+      assert.equal(big.length, prev);
+    }));
+  });
+  socket.end();
+});