gulp test fails, hangs and causes V8 heap exhaustion in clean project

[csvan]

• I understand that GitHub issues are not for tech support, but for questions specific to this generator, bug reports, and feature requests.

Item	Version
generator-angular-fullstack	4.1
Node	6.9.1
npm	3.10.8
Operating System	Ubuntu 16.10

Item	Answer
Transpiler	TypeScript
Markup	HTM
CSS	SCSS
Router	ui-router
Client Tests	Mocha
DB	SQL
Auth	Y

To reproduce, create clean project with the above settings and run gulp test. Output is:

[09:43:23] Requiring external module babel-register
[09:43:24] Using gulpfile ~/IdeaProjects/crossreal/gulpfile.babel.js
(node:6916) DeprecationWarning: crypto.createCredentials is deprecated. Use tls.createSecureContext instead.
(node:6916) DeprecationWarning: crypto.Credentials is deprecated. Use tls.SecureContext instead.
[09:43:24] Starting 'test'...
[09:43:24] Starting 'test:server'...
[09:43:24] Starting 'env:all'...
[09:43:24] Finished 'env:all' after 31 ms
[09:43:24] Starting 'env:test'...
[09:43:24] Finished 'env:test' after 231 μs
[09:43:24] Starting 'mocha:unit'...


  Thing API Router:
    ✓ should return an express router instance
    GET /api/things
      ✓ should route to thing.controller.index
    GET /api/things/:id
      ✓ should route to thing.controller.show
    POST /api/things
      ✓ should route to thing.controller.create
    PUT /api/things/:id
      ✓ should route to thing.controller.upsert
    PATCH /api/things/:id
      ✓ should route to thing.controller.patch
    DELETE /api/things/:id
      ✓ should route to thing.controller.destroy

  User API Router:
    ✓ should return an express router instance
    GET /api/users
      ✓ should verify admin role and route to user.controller.index
    DELETE /api/users/:id
      ✓ should verify admin role and route to user.controller.destroy
    GET /api/users/me
      ✓ should be authenticated and route to user.controller.me
    PUT /api/users/:id/password
      ✓ should be authenticated and route to user.controller.changePassword
    GET /api/users/:id
      ✓ should be authenticated and route to user.controller.show
    POST /api/users
      ✓ should route to user.controller.create

  User Model
    ✓ should begin with no users
Express server listening on 9000, in test mode
(node:6916) DeprecationWarning: crypto.pbkdf2 without specifying a digest is deprecated. Please specify a digest
    ✓ should fail when saving a duplicate user (86ms)
    #email
      ✓ should fail when saving without an email
    #password
      ✓ should authenticate user if valid (56ms)
      ✓ should not authenticate user if invalid (42ms)
      ✓ should remain the same hash unless the password is updated (66ms)


  20 passing (585ms)

[09:43:26] Finished 'mocha:unit' after 1.49 s
[09:43:26] Starting 'mocha:integration'...


  Thing API:
    GET /api/things
GET /api/things 200 12.363 ms - 2
      ✓ should respond with JSON array
    POST /api/things
Express server listening on 9000, in test mode
POST /api/things 201 15.370 ms - 68
      ✓ should respond with the newly created thing
    GET /api/things/:id
GET /api/things/1 200 7.703 ms - 82
      ✓ should respond with the requested thing
    PUT /api/things/:id
      1) "before each" hook for "should respond with the original thing"
    PATCH /api/things/:id
PATCH /api/things/1 200 21.153 ms - 84
      ✓ should respond with the patched thing
    DELETE /api/things/:id
DELETE /api/things/1 204 45.571 ms - -
      ✓ should respond with 204 on successful removal (51ms)
DELETE /api/things/1 404 23.278 ms - -
      ✓ should respond with 404 when thing does not exist

  User API:
    GET /api/users/me
POST /auth/local 200 25.389 ms - 169
GET /api/users/me 200 5.802 ms - 162
      ✓ should respond with a user profile when authenticated
GET /api/users/me 401 6.414 ms - 408
      ✓ should respond with a 401 when not authenticated


  8 passing (5s)
  1 failing

  1) Thing API: PUT /api/things/:id "before each" hook for "should respond with the original thing":
     Error: timeout of 5000ms exceeded. Ensure the done() callback is being called in this test.
  



^C^C


^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C


<--- Last few GCs --->

   48084 ms: Mark-sweep 1283.0 (1447.9) -> 1283.0 (1447.9) MB, 231.3 / 0.0 ms [allocation failure] [scavenge might not succeed].
   48333 ms: Mark-sweep 1283.0 (1447.9) -> 1283.0 (1447.9) MB, 248.5 / 0.0 ms [allocation failure] [scavenge might not succeed].
   48600 ms: Mark-sweep 1283.0 (1447.9) -> 1286.2 (1430.9) MB, 267.5 / 0.0 ms [last resort gc].
   48843 ms: Mark-sweep 1286.2 (1430.9) -> 1289.6 (1430.9) MB, 242.4 / 0.0 ms [last resort gc].


<--- JS stacktrace --->

==== JS stack trace =========================================

Security context: 0x338f13bcfb51 <JS Object>
    1: captureStackTrace [native messages.js:~686] [pc=0x1056523cfe07] (this=0x338f13be6119 <JS Global Object>,Q=0x3d3a644fd401 <an Error with map 0x270dbe3c2221>,bp=0x338f13bb73c1 <JS Function Error (SharedFunctionInfo 0x338f13b79b81)>)
    2: new constructor(aka Error) [native messages.js:639] [pc=0x105651bbec91] (this=0x3d3a644fd401 <an Error with map 0x270dbe3c2221>,bn=0x338f13b04381 <undef...

FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory
 1: node::Abort() [gulp]
 2: 0x558dd7fd8a5e [gulp]
 3: v8::Utils::ReportApiFailure(char const*, char const*) [gulp]
 4: v8::internal::V8::FatalProcessOutOfMemory(char const*, bool) [gulp]
 5: v8::internal::Factory::NewFixedArrayWithHoles(int, v8::internal::PretenureFlag) [gulp]
 6: v8::internal::Isolate::CaptureSimpleStackTrace(v8::internal::Handle<v8::internal::JSReceiver>, v8::internal::Handle<v8::internal::Object>) [gulp]
 7: v8::internal::Isolate::CaptureAndSetSimpleStackTrace(v8::internal::Handle<v8::internal::JSReceiver>, v8::internal::Handle<v8::internal::Object>) [gulp]
 8: v8::internal::Runtime_CollectStackTrace(int, v8::internal::Object**, v8::internal::Isolate*) [gulp]
 9: 0x1056507092a7

Aborted (core dumped)