Current Dev State

static/js/ketcher2/node_modules/events-to-array/test/basic.js

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+var test = require('tap').test
+var EE = require('events').EventEmitter
+var etoa = require('../etoa.js')
+
+test('basic', function (t) {
+  var emitter = new EE()
+  var array = etoa(emitter, ['ignore', 'alsoignore'])
+
+  emitter.emit('foo', 1, 2, 3)
+  emitter.emit('ignore', 'should not see this')
+  emitter.emit('bar', { x: 1 })
+
+  // nested events get tracked as well
+  var subemit = new EE()
+  emitter.emit('sub', subemit)
+  subemit.emit('childEvent', { some: 'data' })
+  subemit.emit('alsoignore', 'should not see this')
+  subemit.emit('anotherone', { some: 'data' }, 'many', 'args')
+
+  // CAVEAT!
+  emitter.emit('blaz', 'blorrg')
+  subemit.emit('order', 'not', 'preserved between child and parent')
+
+  // check out the array whenever
+  t.same(array,
+  [ [ 'foo', 1, 2, 3 ],
+    [ 'bar', { x: 1 } ],
+    [ 'sub',
+      [ [ 'childEvent', { some: 'data' } ],
+        [ 'anotherone', { some: 'data' }, 'many', 'args' ],
+        [ 'order', 'not', 'preserved between child and parent' ] ] ],
+    [ 'blaz', 'blorrg' ] ])
+  t.end()
+})
+
+test('ignore nothing', function (t) {
+  var emitter = new EE()
+  var array = etoa(emitter)
+  emitter.emit('foo', 1, 2, 3)
+  emitter.emit('ignore', 'should see this')
+  emitter.emit('bar', { x: 1 })
+  t.same(array,
+  [ [ 'foo', 1, 2, 3 ],
+    [ 'ignore', 'should see this' ],
+    [ 'bar', { x: 1 } ] ])
+
+  t.end()
+})
+
+test('the map is not the territory', function (t) {
+  var emitter = new EE()
+  // cast all to strings
+  var array = etoa(emitter, ['ignore'], function (arg) {
+    return arg + ''
+  })
+
+  emitter.emit('foo', new Buffer('hello'))
+  var sub = new EE()
+  emitter.emit('sub', sub)
+  sub.emit('obj', { toString: function () { return 'toString fn' } })
+  t.same(array,
+  [ ['foo', 'hello' ],
+    [ 'sub', [ [ 'obj', 'toString fn' ] ] ] ])
+  t.end()
+})