Added some tests

tests/node_modules/re-emitter/test/basic.js

@@ -0,0 +1,93 @@
+var EventEmitter = require('events').EventEmitter
+var reemit = require('../')
+var test = require('tape')
+
+test('Re-emit events from another emitter', function (t) {
+  t.plan(1)
+  var emitter = new EventEmitter()
+  var other = new EventEmitter()
+
+  reemit(emitter, other, ['foo', 'bar'])
+
+  other.on('foo', function () {
+    t.pass('foo fired')
+  })
+
+  emitter.emit('foo')
+
+  other.on('baz', function () {
+    t.fail('baz should not fire on other emitter')
+  })
+
+  emitter.emit('baz')
+
+  emitter.on('bar', function () {
+    t.fail('bar should not fire on original emitter')
+  })
+
+  other.emit('bar')
+})
+
+test('Cancel reemitting at some point in the future', function (t) {
+  t.plan(2)
+  var emitter = new EventEmitter()
+  var other = new EventEmitter()
+
+  var cancel = reemit(emitter, other, ['foo', 'bar'])
+
+  other.on('foo', function () {
+    t.pass('foo fired')
+  })
+
+  // these should fire
+  emitter.emit('foo')
+  emitter.emit('foo')
+
+  cancel()
+
+  // none of these should fire
+  emitter.emit('foo')
+  emitter.emit('foo')
+  emitter.emit('foo')
+})
+
+test('Re-emit events from another emitter with arguments', function (t) {
+  t.plan(4)
+  var emitter = new EventEmitter()
+  var other = new EventEmitter()
+
+  reemit(emitter, other, ['foo', 'bar'])
+
+  other.on('foo', function (arg1, arg2) {
+    t.pass('foo fired')
+    t.equal(arg1, 'arg1')
+    t.equal(arg2, 'arg2')
+    t.equal(arguments[2], undefined)
+  })
+
+  emitter.emit('foo', 'arg1', 'arg2')
+})
+
+test('Filter events from another emitter', function (t) {
+  t.plan(1)
+  var emitter = new EventEmitter()
+  var other = reemit.filter(emitter, ['foo', 'bar'])
+
+  other.on('foo', function () {
+    t.pass('foo fired')
+  })
+
+  emitter.emit('foo')
+
+  other.on('baz', function () {
+    t.fail('baz should not fire on other emitter')
+  })
+
+  emitter.emit('baz')
+
+  emitter.on('bar', function () {
+    t.fail('bar should not fire on original emitter')
+  })
+
+  other.emit('bar')
+})