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This repository was archived by the owner on Feb 26, 2024. It is now read-only.

testProxyZone is null in simple angular 5 / karma test run #1035

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@jimmymain

Description

@jimmymain

I have logged a question for this, but I think it's possibly a bug.

testProxyZone is null in the function below. TypeError: Cannot read property 'run' of null
all the packages are updated to the latest release version

function wrapTestInZone(testBody) {
        // The `done` callback is only passed through if the function expects at least one argument.
        // Note we have to make a function with correct number of arguments, otherwise jasmine will
        // think that all functions are sync or async.
        return testBody && (testBody.length ? function (done) {
            return testProxyZone.run(testBody, this, [done]);
        } : function () {
            return testProxyZone.run(testBody, this); // <= this is null.
        });
    }

The testProxyZone is null even though my base.spec.js contains the necessary imports.

import "core-js"
import "zone.js/dist/zone";
import "zone.js/dist/long-stack-trace-zone";
import "zone.js/dist/proxy";
import "zone.js/dist/sync-test";
import "zone.js/dist/jasmine-patch";
import "zone.js/dist/async-test";
import "zone.js/dist/fake-async-test";

import { TestBed } from "@angular/core/testing";
import { BrowserDynamicTestingModule, platformBrowserDynamicTesting } from "@angular/platform-browser-dynamic/testing";

TestBed.initTestEnvironment(BrowserDynamicTestingModule, platformBrowserDynamicTesting());

the test contains the necessary import / setup

import { TestBed } from "@angular/core/testing";

describe("karma sanity check",
    () => {
        beforeEach(() =>
        {
            TestBed.configureTestingModule({ providers: [] });
        });

        it("1+1=2", () => expect(1 + 1).toBe(2));
    });

and the configuration references the necessary libraries?

module.exports = function (config) {
  config.set({
    basePath: '',
    frameworks: ['jasmine', 'karma-typescript'],
    plugins: [
      require('karma-jasmine'),
      require('karma-typescript'),
      require('karma-chrome-launcher'),
      require('karma-jasmine-html-reporter')
    ],
    files: [
      { pattern: 'base.spec.ts'},
      { pattern: 'wwwroot/ts/**/*.spec.ts' }
    ],
    preprocessors: {
      "**/*.ts": ["karma-typescript"]
    },
    mime: {
      'text/x-typescript': ['ts', 'tsx']
    },
    coverageIstanbulReporter: {
      reports: ['html', 'lcovonly'],
      fixWebpackSourcePaths: true
    },   
    karmaTypescriptConfig: {
      tsconfig: "./tsconfig.json"
    },
    port: 9876,
    colors: true,
    logLevel: config.LOG_INFO,
    autoWatch: true,
    browsers: ['Chrome'],
    singleRun: false
  });
};

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