Add unref() method to RedisClient that will call unref() on the socket connection, allowing it to close when unused. This is experimental because it does not yet understand the Redis protocol, so subscriptions or blocking operations will not work correctly.

test.js

@@ -10,6 +10,7 @@ var redis = require("./index"),
     assert = require("assert"),
     crypto = require("crypto"),
     util = require("./lib/util"),
+    fork = require("child_process").fork,
     test_db_num = 15, // this DB will be flushed and used for testing
     tests = {},
     connected = false,
@@ -2013,6 +2014,23 @@ tests.reconnectRetryMaxDelay = function() {
     });
 };
 
+tests.unref = function () {
+    var name = "unref";
+    var external = fork("./test-unref.js");
+    var done = false;
+    external.on("close", function (code) {
+        assert(code == 0, "test-unref.js failed");
+        done = true;
+    })
+    setTimeout(function () {
+        if (!done) {
+            external.kill();
+        }
+        assert(done, "test-unref.js didn't finish in time.");
+        next(name);
+    }, 100);
+};
+
 all_tests = Object.keys(tests);
 all_start = new Date();
 test_count = 0;