chore(event-listeners-manager): add tests

@vates/event-listeners-manager/index.spec.js

@@ -0,0 +1,67 @@
+'use strict'
+
+const t = require('tap')
+const { EventEmitter } = require('events')
+
+const { EventListenersManager } = require('./')
+
+const noop = Function.prototype
+
+// function spy (impl = Function.prototype) {
+//   function spy() {
+//     spy.calls.push([Array.from(arguments), this])
+//   }
+//   spy.calls = []
+//   return spy
+// }
+
+function assertListeners(t, event, listeners) {
+  t.strictSame(t.context.ee.listeners(event), listeners)
+}
+
+t.beforeEach(function (t) {
+  t.context.ee = new EventEmitter()
+  t.context.em = new EventListenersManager(t.context.ee)
+})
+
+t.test('.add adds a listener', function (t) {
+  t.context.em.add('foo', noop)
+
+  assertListeners(t, 'foo', [noop])
+
+  t.end()
+})
+
+t.test('.add does not add a duplicate listener', function (t) {
+  t.context.em.add('foo', noop).add('foo', noop)
+
+  assertListeners(t, 'foo', [noop])
+
+  t.end()
+})
+
+t.test('.remove removes a listener', function (t) {
+  t.context.em.add('foo', noop).remove('foo', noop)
+
+  assertListeners(t, 'foo', [])
+
+  t.end()
+})
+
+t.test('.removeAll removes all listeners of a given type', function (t) {
+  t.context.em.add('foo', noop).add('bar', noop).removeAll('foo')
+
+  assertListeners(t, 'foo', [])
+  assertListeners(t, 'bar', [noop])
+
+  t.end()
+})
+
+t.test('.removeAll removes all listeners', function (t) {
+  t.context.em.add('foo', noop).add('bar', noop).removeAll()
+
+  assertListeners(t, 'foo', [])
+  assertListeners(t, 'bar', [])
+
+  t.end()
+})

@vates/event-listeners-manager/package.json

@@ -37,6 +37,10 @@
   "license": "ISC",
   "version": "1.0.0",
   "scripts": {
-    "postversion": "npm publish --access public"
+    "postversion": "npm publish --access public",
+    "test": "tap --branches=72"
+  },
+  "devDependencies": {
+    "tap": "^16.2.0"
   }
 }

package.json

@@ -60,6 +60,7 @@
     "testEnvironment": "node",
     "testPathIgnorePatterns": [
       "/@vates/decorate-with/",
+      "/@vates/event-listeners-manager/",
       "/@vates/predicates/",
       "/@xen-orchestra/audit-core/",
       "/dist/",

yarn.lock

@@ -17576,7 +17576,7 @@ tap-yaml@^1.0.0:
   dependencies:
     yaml "^1.5.0"
 
-tap@^16.0.1, tap@^16.1.0:
+tap@^16.0.1, tap@^16.1.0, tap@^16.2.0:
   version "16.2.0"
   resolved "https://registry.yarnpkg.com/tap/-/tap-16.2.0.tgz#0e47edcf1089e386630dc8d779dc8b20cfc7ee1d"
   integrity sha512-ikfNLy701p2+sH3R0pAXQ/Aen6ZByaguUY7UsoTLL4AXa2c9gYQL+pI21p13lq54R7/CEoLaViC1sexcWG32ig==