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TypeError: Cannot read property 'generate' of undefined

See original GitHub issue

Ember 2.9.0

Running ember test with ember-href-to v1.14.0 is fine. Using v1.15.0 we get some failing integration tests:

        actual: >
            null
        stack: >
            TypeError: Cannot read property 'generate' of undefined
                at Class.generate (http://localhost:7357/assets/vendor.js:49196:42)
                at Class.urlFor (http://localhost:7357/assets/vendor.js:76358:48)
                at hrefTo (http://localhost:7357/assets/vendor.js:144238:26)
                at Class.compute (http://localhost:7357/assets/vendor.js:144251:23)
                at Child.compute (http://localhost:7357/assets/vendor.js:34567:26)
                at Child.value (http://localhost:7357/assets/vendor.js:34897:27)
                at read (http://localhost:7357/assets/vendor.js:35290:21)
                at Object.readArray (http://localhost:7357/assets/vendor.js:35312:16)
                at Child.compute (http://localhost:7357/assets/vendor.js:34434:48)
                at Child.value (http://localhost:7357/assets/vendor.js:34897:27)
        message: >
            Died on test #1     at Module.callback (http://localhost:7357/assets/tests.js:27187:24)
                at Module.exports (http://localhost:7357/assets/vendor.js:115:32)
                at requireModule (http://localhost:7357/assets/vendor.js:36:18)
                at TestLoader.<anonymous> (http://localhost:7357/assets/test-support.js:7700:11)
                at TestLoader.require (http://localhost:7357/assets/test-support.js:7690:27)
                at TestLoader.loadModules (http://localhost:7357/assets/test-support.js:7682:16)
                at Function.load (http://localhost:7357/assets/test-support.js:7633:26): Cannot read property 'generate' of undefined
        Log: |

The test renders a component that contains a href-to call:

I haven’t manage to recreate it in tests on ember-href-to yet

Issue Analytics

State:
Created 6 years ago
Reactions:5
Comments:13 (5 by maintainers)

Top GitHub Comments

1reaction

GCheung55commented, Dec 29, 2017

Looking around some more, it looks like the integration test is setting up the router with:

beforeEach() {
  getOwner(this).lookup('router:main').setupRouter();
}

@GavinJoyce Is there a way to automatically setup the router without needing to manually add a beforeEach to every integration test?

1reaction

GCheung55commented, Dec 28, 2017

I was seeing this on 1.15.x with ember@2.17.1. Looking into this some it looks like the router isn’t setup yet, that’s why this._routerMicrolib is undefined.

this._routerMicrolib is setup in the _initRouterJs method. My guess is that the router isn’t setup in component tests.

Reference: https://github.com/emberjs/ember.js/blob/master/packages/ember-routing/lib/system/router.js#L396