1 files changed, 51 insertions, 0 deletions
diff --git a/node_modules/wrappy/test/basic.js b/node_modules/wrappy/test/basic.js
new file mode 100644
index 000000000..5ed0fcdfd
--- /dev/null
+++ b/node_modules/wrappy/test/basic.js
@@ -0,0 +1,51 @@
+var test = require('tap').test
+var wrappy = require('../wrappy.js')
+
+test('basic', function (t) {
+  function onceifier (cb) {
+    var called = false
+    return function () {
+      if (called) return
+      called = true
+      return cb.apply(this, arguments)
+    }
+  }
+  onceifier.iAmOnce = {}
+  var once = wrappy(onceifier)
+  t.equal(once.iAmOnce, onceifier.iAmOnce)
+
+  var called = 0
+  function boo () {
+    t.equal(called, 0)
+    called++
+  }
+  // has some rando property
+  boo.iAmBoo = true
+
+  var onlyPrintOnce = once(boo)
+
+  onlyPrintOnce() // prints 'boo'
+  onlyPrintOnce() // does nothing
+  t.equal(called, 1)
+
+  // random property is retained!
+  t.equal(onlyPrintOnce.iAmBoo, true)
+
+  var logs = []
+  var logwrap = wrappy(function (msg, cb) {
+    logs.push(msg + ' wrapping cb')
+    return function () {
+      logs.push(msg + ' before cb')
+      var ret = cb.apply(this, arguments)
+      logs.push(msg + ' after cb')
+    }
+  })
+
+  var c = logwrap('foo', function () {
+    t.same(logs, [ 'foo wrapping cb', 'foo before cb' ])
+  })
+  c()
+  t.same(logs, [ 'foo wrapping cb', 'foo before cb', 'foo after cb' ])
+
+  t.end()
+})