Handle unhandledRejection as a root TAP error

lib/tap.js

@@ -78,6 +78,9 @@ TAP.prototype.push = function push () {
   monkeypatchEpipe()
   monkeypatchExit()
   process.on('uncaughtException', this.threw)
+  process.on('unhandledRejection', function (er) {
+    this.threw(er)
+  }.bind(this))
 
   return this.push.apply(this, arguments)
 }

test/test/unhandled-rejection--bail--buffer.tap

@@ -0,0 +1,9 @@
+TAP version 13
+# this is fine
+not ok 1 - 💩
+  ---
+  {"at":{"column":30,"constructor":true,"file":"test/test/unhandled-rejection.js","line":9},"source":"this.dump = Promise.reject(new Error('💩'))\n","test":"TAP"}
+  ...
+
+Bail out! # 💩
+

test/test/unhandled-rejection--bail.tap

@@ -0,0 +1,9 @@
+TAP version 13
+# this is fine
+not ok 1 - 💩
+  ---
+  {"at":{"column":30,"constructor":true,"file":"test/test/unhandled-rejection.js","line":9},"source":"this.dump = Promise.reject(new Error('💩'))\n","test":"TAP"}
+  ...
+
+Bail out! # 💩
+

test/test/unhandled-rejection--buffer.tap

@@ -0,0 +1,11 @@
+TAP version 13
+# this is fine
+not ok 1 - 💩
+  ---
+  {"at":{"column":30,"constructor":true,"file":"test/test/unhandled-rejection.js","line":9},"source":"this.dump = Promise.reject(new Error('💩'))\n","test":"TAP"}
+  ...
+
+1..1
+# failed 1 test
+___/# time=[0-9.]+(ms)?/~~~
+

test/test/unhandled-rejection.js

@@ -0,0 +1,12 @@
+if (typeof Promise === 'undefined')
+  Promise = require('bluebird')
+
+var tap = require('../..')
+tap.comment('this is fine')
+
+function Poo () {
+  // Initially set the loaded status to a rejected promise
+  this.dump = Promise.reject(new Error('💩'))
+}
+
+new Poo()

test/test/unhandled-rejection.tap

@@ -0,0 +1,11 @@
+TAP version 13
+# this is fine
+not ok 1 - 💩
+  ---
+  {"at":{"column":30,"constructor":true,"file":"test/test/unhandled-rejection.js","line":9},"source":"this.dump = Promise.reject(new Error('💩'))\n","test":"TAP"}
+  ...
+
+1..1
+# failed 1 test
+___/# time=[0-9.]+(ms)?/~~~
+