monkeypatch exit as well as reallyExit

lib/tap.js

@@ -41,6 +41,15 @@ function monkeypatchExit () {
       return original.call(this, code)
     }
   }(process.reallyExit)
+
+  process.exit = function (original) {
+    return function exit (code) {
+      code = onExitEvent(code)
+      return original.call(this, code)
+    }
+  }(process.exit)
+
+  process.on('exit', onExitEvent)
 }
 
 var didOnExitEvent = false
@@ -63,13 +72,14 @@ function onExitEvent (code) {
 }
 
 TAP.prototype.push = function push () {
+  // this resets push and pipe to standard values
   this.pipe(process.stdout)
 
   monkeypatchEpipe()
   monkeypatchExit()
-  process.on('exit', onExitEvent)
-  process.on('uncaughtException', tap.threw)
-  return this.push.apply(tap, arguments)
+  process.on('uncaughtException', this.threw)
+
+  return this.push.apply(this, arguments)
 }
 
 TAP.prototype.onbail = function () {