我遇到一个奇怪的错误，没有找到任何解决方案。当在项目中运行所有前端单元测试时，波纹管错误会随机出现。每次收到此错误时，它都是针对不同的测试的，因此不是导致它的特定测试。任何输入表示赞赏。
Failed: Maximum call stack size exceeded
2019-11-07T15:45:41.4023196Z at <Jasmine>
2019-11-07T15:45:41.4023283Z at ProxyZoneSpec.push../node_modules/zone.js/dist/zone-testing.js.ProxyZoneSpec.onInvoke (node_modules/zone.js/dist/zone-testing.js:283:1)
2019-11-07T15:45:41.4023362Z at ZoneDelegate../node_modules/zone.js/dist/zone.js.ZoneDelegate.invoke (node_modules/zone.js/dist/zone.js:390:1)
2019-11-07T15:45:41.4023456Z at Zone../node_modules/zone.js/dist/zone.js.Zone.run (node_modules/zone.js/dist/zone.js:150:1)
2019-11-07T15:45:41.4023531Z at NgZone.runOutsideAngular (node_modules/@angular/core/fesm2015/core.js:21782:69)
2019-11-07T15:45:41.4023614Z at checkStable (node_modules/@angular/core/fesm2015/core.js:21805:1)
2019-11-07T15:45:41.4023685Z at onLeave (node_modules/@angular/core/fesm2015/core.js:21878:1)
2019-11-07T15:45:41.4023756Z at Object.onInvoke (node_modules/@angular/core/fesm2015/core.js:21837:1)
2019-11-07T15:45:41.4023850Z at ZoneDelegate../node_modules/zone.js/dist/zone.js.ZoneDelegate.invoke (node_modules/zone.js/dist/zone.js:390:1)
2019-11-07T15:45:41.4023925Z at Zone../node_modules/zone.js/dist/zone.js.Zone.run (node_modules/zone.js/dist/zone.js:150:1)
2019-11-07T15:45:41.4024004Z at NgZone.run (node_modules/@angular/core/fesm2015/core.js:21721:69)