closes #57

apparatus · Nov 9, 2016 · 61f429c · 61f429c
1 parent 723677a
commit 61f429c
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Showing 2 changed files with 18 additions and 2 deletions.
diff --git a/packages/mu/index.js b/packages/mu/index.js
@@ -73,9 +73,9 @@ function createMu (opts) {
 
   function dispatch (message, cb) {
     var id = uuid()
-
+    cb = cb || noop
     assert(message, 'dispatch requires a valid message')
-    assert(typeof cb === 'function', 'dispatch requries a valid callback handler')
+    assert(typeof cb === 'function', 'dispatch requires a valid callback handler')
     logger.debug('dispatching message: ' + message)
 
     if (!(message.pattern || message.response)) {
@@ -88,6 +88,8 @@ function createMu (opts) {
   }
 }
 
+function noop () {}
+
 createMu.log = Object.keys(pino.levels.values).reduce((acc, key) => {
   acc['level' + key[0].toUpperCase() + key.slice(1)] = key
   return acc

diff --git a/test/core/basic.test.js b/test/core/basic.test.js
@@ -89,3 +89,17 @@ test('multi-dispatch same cb', function (t) {
   mu.dispatch({role: 'test', cmd: 'one', id: 6}, handler)
 })
 
+test('optional cb', function (t) {
+  t.plan(2)
+
+  var mu = createMu()
+
+  mu.define({role: 'test', cmd: 'one'}, function (args, cb) {
+    t.pass()
+  })
+
+  t.doesNotThrow(function () {
+    mu.dispatch({role: 'test', cmd: 'one'})
+  })
+})
+