Add tests and improve older tests

test/commands/info.spec.js

@@ -0,0 +1,51 @@
+'use strict';
+
+var assert = require('assert');
+var config = require("../lib/config");
+var helper = require('../helper');
+var redis = config.redis;
+
+describe("The 'info' method", function () {
+
+    helper.allTests(function(parser, ip, args) {
+
+        describe("using " + parser + " and " + ip, function () {
+            var client;
+
+            before(function (done) {
+                client = redis.createClient.apply(redis.createClient, args);
+                client.once("ready", function () {
+                    client.flushall(done);
+                });
+            });
+
+            after(function () {
+                client.end(true);
+            });
+
+            it("update server_info after a info command", function (done) {
+                client.set('foo', 'bar');
+                client.info();
+                client.select(2, function () {
+                    assert.strictEqual(client.server_info.db2, undefined);
+                });
+                client.set('foo', 'bar');
+                client.info();
+                setTimeout(function () {
+                    assert.strictEqual(typeof client.server_info.db2, 'object');
+                    done();
+                }, 150);
+            });
+
+            it("emit error after a failure", function (done) {
+                client.info();
+                client.once('error', function (err) {
+                    assert.strictEqual(err.code, 'UNCERTAIN_STATE');
+                    assert.strictEqual(err.command, 'INFO');
+                    done();
+                });
+                client.stream.destroy();
+            });
+        });
+    });
+});