Bluebird long stack traces integration test

Author: mliou8

test/cli.js

@@ -75,6 +75,14 @@ test('disallow invalid babel config shortcuts', t => {
 	});
 });
 
+test('enabling long stack traces will provide detailed debug information', t => {
+	execCli('fixture/long-stack-trace', (err, stdout, stderr) => {
+		t.ok(err);
+		t.match(stderr, /From previous event/);
+		t.end();
+	});
+});
+
 test('timeout', t => {
 	execCli(['fixture/long-running.js', '-T', '1s'], (err, stdout, stderr) => {
 		t.ok(err);

test/fixture/long-stack-trace/enable-trace.js

@@ -0,0 +1,6 @@
+'use strict';
+
+const Promise = require('bluebird');
+Promise.longStackTraces();
+
+module.exports = Promise;

test/fixture/long-stack-trace/package.json

@@ -0,0 +1,5 @@
+{
+	"ava": {
+		"require": "./enable-trace.js"
+	}
+}

test/fixture/long-stack-trace/test.js

@@ -0,0 +1,17 @@
+import test from '../../../';
+import Promise from './enable-trace';
+
+
+// This promise throwing pattern was used in bluebird documentation for long stack traces
+// http://bluebirdjs.com/docs/api/promise.longstacktraces.html
+test(async t => {
+	const resolve = await Promise.resolve().then(function outer() {
+    return Promise.resolve().then(function inner() {
+    	return Promise.resolve().then(function evenMoreInner() {
+				a.b.c.d()
+      }).catch(function catcher(e) {
+				throw e.stack
+      });
+    });
+	});
+});