get function name change

node_modules/propagate/tests/index.js

@@ -0,0 +1,140 @@
+var test = require('tap').test;
+var EventEmitter = require('events').EventEmitter;
+var propagate = require('..');
+
+test('propagates events', function(t) {
+  t.plan(12);
+  var ee1 = new EventEmitter();
+  var ee2 = new EventEmitter();
+  propagate(ee1, ee2);
+
+  ee2.on('event-1', function(a, b, c) {
+    t.equal(a, 'a');
+    t.equal(b, 'b');
+    t.equal(c, undefined);
+  });
+
+  ee2.on('event-2', function(a, b, c) {
+    t.equal(a, 'c');
+    t.equal(b, 'd');
+    t.equal(c, undefined);
+  });
+
+  ee1.emit('event-1', 'a', 'b');
+  ee1.emit('event-1', 'a', 'b');
+  ee1.emit('event-2', 'c', 'd');
+  ee1.emit('event-2', 'c', 'd');
+
+});
+
+test('propagates can end', function(t) {
+  t.plan(1);
+
+  var ee1 = new EventEmitter();
+  var ee2 = new EventEmitter();
+  var prop = propagate(ee1, ee2);
+
+  ee2.on('event', function() {
+    t.ok('true', 'propagated');
+  });
+
+  ee1.emit('event');
+  prop.end();
+  ee1.emit('event');
+});
+
+test('after propagation old one still emits', function(t) {
+  t.plan(2);
+
+  var ee1 = new EventEmitter();
+  var ee2 = new EventEmitter();
+  var prop = propagate(ee1, ee2);
+
+  ee1.on('event', function() {
+    t.ok('true', 'propagated');
+  });
+
+  ee1.emit('event');
+  prop.end();
+  ee1.emit('event');
+});
+
+test('emit on source before destination', function (t) {
+  t.plan(1);
+
+  var source = new EventEmitter();
+  var dest = new EventEmitter();
+
+  // Set up test case for "propagate all"
+  // `count` should have been incremented by handler on source when handler on dest is invoked
+  var count = 0;
+  propagate(source, dest);
+  source.on('event', function () {
+    count++;
+  });
+  dest.on('event', function () {
+    t.equal(count, 1, 'emit on source first');
+  });
+
+  // Emit the events for assertion
+  source.emit('event');
+});
+
+test('is able to propagate only certain events', function(t) {
+  t.plan(2);
+  var ee1 = new EventEmitter();
+  var ee2 = new EventEmitter();
+  // propagate only event-1 and event-2, leaving out
+  var p = propagate(['event-1', 'event-2'], ee1, ee2);
+
+  ee2.on('event-1', function() {
+    t.ok(true, 'event 1 received');
+  });
+
+  ee2.on('event-2', function(a, b, c) {
+    t.ok(true, 'event 2 received');
+  });
+
+  ee2.on('event-3', function(a, b, c) {
+    t.ok(false, 'event 3 should not have been received');
+  });
+
+  ee1.emit('event-1');
+  ee1.emit('event-2');
+  ee1.emit('event-3');
+
+  p.end();
+
+  ee1.emit('event-1');
+});
+
+test('is able to propagate and map certain events', function(t) {
+  t.plan(2);
+  var ee1 = new EventEmitter();
+  var ee2 = new EventEmitter();
+  // propagate only event-1 and event-2, leaving out
+  var p = propagate({
+    'event-1': 'other-event-1',
+    'event-2': 'other-event-2'
+  }, ee1, ee2);
+
+  ee2.on('other-event-1', function() {
+    t.ok(true, 'event 1 received');
+  });
+
+  ee2.on('other-event-2', function(a, b, c) {
+    t.ok(true, 'event 2 received');
+  });
+
+  ee2.on('event-3', function(a, b, c) {
+    t.ok(false, 'event 3 should not have been received');
+  });
+
+  ee1.emit('event-1');
+  ee1.emit('event-2');
+  ee1.emit('event-3');
+
+  p.end();
+
+  ee1.emit('event-1');
+});