08-27-周三_17-09-29

node_modules/dnode/test/emit.js

@@ -0,0 +1,61 @@
+var test = require('tape');
+var EventEmitter = require('events').EventEmitter;
+var dnode = require('../');
+
+test('emit events', function (t) {
+    t.plan(1);
+    
+    var subs = [];
+    function publish (name) {
+        var args = [].slice.call(arguments, 1);
+        for (var i = 0; i < subs.length; i++) {
+            subs[i].emit(name, args);
+        }
+    }
+    
+    var server = function () {
+        return dnode(function (remote, conn) {
+            this.subscribe = function (emit) {
+                subs.push({ emit : emit, id : conn.id });
+                
+                conn.on('end', function () {
+                    for (var i = 0; i < subs.length; i++) {
+                        if (subs.id === conn.id) {
+                            subs.splice(i, 1);
+                            break;
+                        }
+                    }
+                });
+            };
+        });
+    };
+    
+    setTimeout(function () {
+        var times = 0;
+        var iv = setInterval(function () {
+            if (++times === 5) {
+                t.deepEqual(xs, ys);
+                return clearInterval(iv);
+            }
+            else publish('data', Math.floor(Math.random() * 100));
+        }, 20);
+    }, 20);
+    
+    var xs = [];
+    var x = dnode();
+    x.on('remote', function (remote) {
+        var em = new EventEmitter;
+        em.on('data', function (n) { xs.push(n) });
+        remote.subscribe(function () { return em.emit.apply(em, arguments) });
+    });
+    x.pipe(server()).pipe(x);
+    
+    var ys = [];
+    var y = dnode();
+    y.on('remote', function (remote) {
+        var em = new EventEmitter;
+        em.on('data', function (n) { ys.push(n) });
+        remote.subscribe(function () { return em.emit.apply(em, arguments) });
+    });
+    y.pipe(server()).pipe(y);
+});