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Proposal: Vendor whatwg-fetch #293
Comments
It's likely ok to bundle But I am not super enthusiastic about actually copying I can be convinced, these are only my first thoughts. |
Ya. I think we would just copy this file: https://github.com/github/fetch/blob/master/fetch.js. So 500 lines of code. The last release of whatwg-fetch was 1 year ago. If there were updates to whatwg-fetch, it's true we wouldn't know about them (at least right away). But again we should compare that to the current situation, in which we're relying on internals, which means whatwg-fetch could push out a patch version that refactors away from their reliance on XMLHTTPRequest and that would break Pretender. Is that likely to happen? Not sure. There are other newer polyfills of fetch that don't use XMLHTTPRequest, so maybe. In any case I do think it's strange for us to be relying on the internals of an external dependency. I don't think we'd need whatwg-fetch's tests, I think our tests cover Pretender's public API and that's sufficient. An alternative would be to update Pretender's code to "properly" support intercepting fetch, i.e. actually proxy the So ultimately I think vendoring whatwg-fetch is a lot like adding a "proper" fetch adapter to Pretender. |
I haven't digged into how next.js resolves |
Ohh I see – I don't think I fully understood. Are you all saying we could keep whatwg-fetch as a dependency here in package.json, but for Pretender's publishing step, go ahead and pull it in + make it into an internal dependency? So there's no chance of it being overridden, hoisted or something else? |
Another point @ryanto raised is that, currently Pretender is not importable in node, due to This led us needing to create some polyfills and use them like this: https://github.com/miragejs/miragejs/blob/23fb9fe3278af513e1a95c8a09c669e4a47fcd45/lib/server.js#L3. This ensure our polyfill code runs before Pretender is imported (and thus before whatwg-fetch is imported). The code essentially just ensures So, if we were to copy the 500-line whatwg-fetch file directly into Pretender, we could also solve this issue and make sure Pretender doesn't break node apps if it's in the import path, by simply wrapping the code in an I understand the purist argument about leaving whatwg-fetch in Just some more of my thoughts! |
@samselikoff I don't have strong feelings either way, but am happy to support your calls here. They seem perfectly reasonable. |
Right, thanks man. If we do pull the trigger on this, it will be quite easy to undo if it causes any issues. Thanks a lot Stef! |
Really appreciate the effort here guys! 🙌 |
Any trick to getting Pretender's test suite running locally? I started work on this but master is failing on my machine for a bunch of reasons... yarn test➜ pretender git:(vendor-whatwg-fetch) ✗ yarn test
yarn run v1.21.1
$ bower install
$ npm run lint && npm run eslint && npm run tests-only
npm WARN lifecycle The node binary used for scripts is /var/folders/v5/5bs4trnx5v7bly3f0cg4_sc40000gn/T/yarn--15824094412
85-0.3022276787043625/node but npm is using /Users/samselikoff/.nodenv/versions/12.16.0/bin/node itself. Use the `--scrip
ts-prepend-node-path` option to include the path for the node binary npm was executed with.
> [email protected] lint /Users/samselikoff/Projects/oss/pretender
> jshint test
npm WARN lifecycle The node binary used for scripts is /var/folders/v5/5bs4trnx5v7bly3f0cg4_sc40000gn/T/yarn--15824094412
85-0.3022276787043625/node but npm is using /Users/samselikoff/.nodenv/versions/12.16.0/bin/node itself. Use the `--scrip
ts-prepend-node-path` option to include the path for the node binary npm was executed with.
> [email protected] eslint /Users/samselikoff/Projects/oss/pretender
> eslint src/**/*.ts test
npm WARN lifecycle The node binary used for scripts is /var/folders/v5/5bs4trnx5v7bly3f0cg4_sc40000gn/T/yarn--15824094412
85-0.3022276787043625/node but npm is using /Users/samselikoff/.nodenv/versions/12.16.0/bin/node itself. Use the `--scrip
ts-prepend-node-path` option to include the path for the node binary npm was executed with.
> [email protected] tests-only /Users/samselikoff/Projects/oss/pretender
> karma start --single-run
22 02 2020 17:10:44.445:INFO [karma]: Karma v1.7.1 server started at http://0.0.0.0:9876/
22 02 2020 17:10:44.447:INFO [launcher]: Launching browsers Chrome, PhantomJS with unlimited concurrency
22 02 2020 17:10:44.451:INFO [launcher]: Starting browser Chrome
22 02 2020 17:10:44.457:INFO [launcher]: Starting browser PhantomJS
22 02 2020 17:10:45.453:INFO [Chrome 80.0.3987 (Mac OS X 10.15.3)]: Connected on socket VCT2Nx9PjwzfYoIfAAAA with id 2170
2188
22 02 2020 17:10:45.557:INFO [PhantomJS 2.1.1 (Mac OS X 0.0.0)]: Connected on socket oRy3yOMfjOk2sBphAAAB with id 2755994
5
..........................................
Chrome 80.0.3987 (Mac OS X 10.15.3) pretender invoking async requests with `onprogress` upload events in the upload trig
ger a progress event each 50ms FAILED
ProgressEvent has total of requestBody byte size
Expected: 9
Actual: 300
at EventedObject.xhr.upload.onprogress (test/calling_test.js:423:16)
at EventedObject.<anonymous> (node_modules/fake-xml-http-request/fake_xml_http_request.js:137:18)
at EventedObject.dispatchEvent (node_modules/fake-xml-http-request/fake_xml_http_request.js:181:24)
at EventedObject._progress (node_modules/fake-xml-http-request/fake_xml_http_request.js:199:12)
at dist/pretender.js:9:16177
ProgressEvent has total of requestBody byte size
Expected: 9
Actual: 300
at EventedObject.xhr.upload.onprogress (test/calling_test.js:423:16)
at EventedObject.<anonymous> (node_modules/fake-xml-http-request/fake_xml_http_request.js:137:18)
at EventedObject.dispatchEvent (node_modules/fake-xml-http-request/fake_xml_http_request.js:181:24)
at EventedObject._progress (node_modules/fake-xml-http-request/fake_xml_http_request.js:199:12)
at dist/pretender.js:9:16177
ProgressEvent has total of requestBody byte size
Expected: 9
Actual: 300
at EventedObject.xhr.upload.onprogress (test/calling_test.js:423:16)
at EventedObject.<anonymous> (node_modules/fake-xml-http-request/fake_xml_http_request.js:137:18)
at EventedObject.dispatchEvent (node_modules/fake-xml-http-request/fake_xml_http_request.js:181:24)
at EventedObject._progress (node_modules/fake-xml-http-request/fake_xml_http_request.js:199:12)
at dist/pretender.js:9:16177
ProgressEvent has total of requestBody byte size
Expected: 9
Actual: 300
at EventedObject.xhr.upload.onprogress (test/calling_test.js:423:16)
at EventedObject.<anonymous> (node_modules/fake-xml-http-request/fake_xml_http_request.js:137:18)
at EventedObject.dispatchEvent (node_modules/fake-xml-http-request/fake_xml_http_request.js:181:24)
at EventedObject._progress (node_modules/fake-xml-http-request/fake_xml_http_request.js:199:12)
at dist/pretender.js:9:16177
ProgressEvent has total of requestBody byte size
Expected: 9
Actual: 300
at EventedObject.xhr.upload.onprogress (test/calling_test.js:423:16)
at EventedObject.<anonymous> (node_modules/fake-xml-http-request/fake_xml_http_request.js:137:18)
at EventedObject.dispatchEvent (node_modules/fake-xml-http-request/fake_xml_http_request.js:181:24)
at EventedObject._progress (node_modules/fake-xml-http-request/fake_xml_http_request.js:199:12)
at dist/pretender.js:9:16177
Chrome 80.0.3987 (Mac OS X 10.15.3) pretender invoking `onprogress` upload events don't keep firing once the request has
ended FAILED
ProgressEvent has total of requestBody byte size
Expected: 9
Actual: 210
at EventedObject.xhr.upload.onprogress (test/calling_test.js:460:14)
at EventedObject.<anonymous> (node_modules/fake-xml-http-request/fake_xml_http_request.js:137:18)
at EventedObject.dispatchEvent (node_modules/fake-xml-http-request/fake_xml_http_request.js:181:24)
at EventedObject._progress (node_modules/fake-xml-http-request/fake_xml_http_request.js:199:12)
at dist/pretender.js:9:16177
at callTimer (node_modules/sinon/pkg/sinon.js:7096:20)
ProgressEvent has total of requestBody byte size
Expected: 9
Actual: 210
at EventedObject.xhr.upload.onprogress (test/calling_test.js:460:14)
at EventedObject.<anonymous> (node_modules/fake-xml-http-request/fake_xml_http_request.js:137:18)
at EventedObject.dispatchEvent (node_modules/fake-xml-http-request/fake_xml_http_request.js:181:24)
at EventedObject._progress (node_modules/fake-xml-http-request/fake_xml_http_request.js:199:12)
at dist/pretender.js:9:16177
at callTimer (node_modules/sinon/pkg/sinon.js:7096:20)
ProgressEvent has total of requestBody byte size
Expected: 9
Actual: 210
at EventedObject.xhr.upload.onprogress (test/calling_test.js:460:14)
at EventedObject.<anonymous> (node_modules/fake-xml-http-request/fake_xml_http_request.js:137:18)
at EventedObject.dispatchEvent (node_modules/fake-xml-http-request/fake_xml_http_request.js:181:24)
at EventedObject._progress (node_modules/fake-xml-http-request/fake_xml_http_request.js:199:12)
at dist/pretender.js:9:16177
at callTimer (node_modules/sinon/pkg/sinon.js:7096:20)
ProgressEvent has total of requestBody byte size
Expected: 9
Actual: 210
at EventedObject.xhr.upload.onprogress (test/calling_test.js:460:14)
at EventedObject.<anonymous> (node_modules/fake-xml-http-request/fake_xml_http_request.js:137:18)
at EventedObject.dispatchEvent (node_modules/fake-xml-http-request/fake_xml_http_request.js:181:24)
at EventedObject._progress (node_modules/fake-xml-http-request/fake_xml_http_request.js:199:12)
at dist/pretender.js:9:16177
at callTimer (node_modules/sinon/pkg/sinon.js:7096:20)
Chrome 80.0.3987 (Mac OS X 10.15.3) pretender invoking no progress upload events are fired after the request is aborted FAILED
ProgressEvent has total of requestBody byte size
Expected: 8
Actual: 210
at EventedObject.xhr.upload.onprogress (test/calling_test.js:495:14)
at EventedObject.<anonymous> (node_modules/fake-xml-http-request/fake_xml_http_request.js:137:18)
at EventedObject.dispatchEvent (node_modules/fake-xml-http-request/fake_xml_http_request.js:181:24)
at EventedObject._progress (node_modules/fake-xml-http-request/fake_xml_http_request.js:199:12)
at dist/pretender.js:9:16177
at callTimer (node_modules/sinon/pkg/sinon.js:7096:20)
PhantomJS 2.1.1 (Mac OS X 0.0.0) pretender invoking async requests with `onprogress` upload events in the upload trigger a progress event each 50ms FAILED
ProgressEvent has total of requestBody byte size
Expected: 9
Actual: 300
onprogress@test/calling_test.js:423:21
node_modules/fake-xml-http-request/fake_xml_http_request.js:137:22
dispatchEvent@node_modules/fake-xml-http-request/fake_xml_http_request.js:181:28
_progress@node_modules/fake-xml-http-request/fake_xml_http_request.js:199:25
dist/pretender.js:9:18046
ProgressEvent has total of requestBody byte size
Expected: 9
Actual: 300
onprogress@test/calling_test.js:423:21
node_modules/fake-xml-http-request/fake_xml_http_request.js:137:22
dispatchEvent@node_modules/fake-xml-http-request/fake_xml_http_request.js:181:28
_progress@node_modules/fake-xml-http-request/fake_xml_http_request.js:199:25
dist/pretender.js:9:18046
ProgressEvent has total of requestBody byte size
Expected: 9
Actual: 300
onprogress@test/calling_test.js:423:21
node_modules/fake-xml-http-request/fake_xml_http_request.js:137:22
dispatchEvent@node_modules/fake-xml-http-request/fake_xml_http_request.js:181:28
_progress@node_modules/fake-xml-http-request/fake_xml_http_request.js:199:25
dist/pretender.js:9:18046
ProgressEvent has total of requestBody byte size
Expected: 9
Actual: 300
onprogress@test/calling_test.js:423:21
node_modules/fake-xml-http-request/fake_xml_http_request.js:137:22
dispatchEvent@node_modules/fake-xml-http-request/fake_xml_http_request.js:181:28
_progress@node_modules/fake-xml-http-request/fake_xml_http_request.js:199:25
dist/pretender.js:9:18046
ProgressEvent has total of requestBody byte size
Expected: 9
Actual: 300
onprogress@test/calling_test.js:423:21
node_modules/fake-xml-http-request/fake_xml_http_request.js:137:22
dispatchEvent@node_modules/fake-xml-http-request/fake_xml_http_request.js:181:28
_progress@node_modules/fake-xml-http-request/fake_xml_http_request.js:199:25
dist/pretender.js:9:18046
PhantomJS 2.1.1 (Mac OS X 0.0.0) pretender invoking `onprogress` upload events don't keep firing once the request has ended FAILED
ProgressEvent has total of requestBody byte size
Expected: 9
Actual: 210
onprogress@test/calling_test.js:460:19
node_modules/fake-xml-http-request/fake_xml_http_request.js:137:22
dispatchEvent@node_modules/fake-xml-http-request/fake_xml_http_request.js:181:28
_progress@node_modules/fake-xml-http-request/fake_xml_http_request.js:199:25
dist/pretender.js:9:18046
callTimer@node_modules/sinon/pkg/sinon.js:7096:25
tick@node_modules/sinon/pkg/sinon.js:7319:30
test/calling_test.js:466:15
runTest@node_modules/qunit/qunit/qunit.js:3041:34
run@node_modules/qunit/qunit/qunit.js:3027:13
node_modules/qunit/qunit/qunit.js:3258:15
processTaskQueue@node_modules/qunit/qunit/qunit.js:2614:28
node_modules/qunit/qunit/qunit.js:2618:24
invokeCallback@node_modules/qunit/qunit/qunit.js:1699:25
node_modules/qunit/qunit/qunit.js:1467:30
flush@node_modules/qunit/qunit/qunit.js:1419:15
ProgressEvent has total of requestBody byte size
Expected: 9
Actual: 210
onprogress@test/calling_test.js:460:19
node_modules/fake-xml-http-request/fake_xml_http_request.js:137:22
dispatchEvent@node_modules/fake-xml-http-request/fake_xml_http_request.js:181:28
_progress@node_modules/fake-xml-http-request/fake_xml_http_request.js:199:25
dist/pretender.js:9:18046
callTimer@node_modules/sinon/pkg/sinon.js:7096:25
tick@node_modules/sinon/pkg/sinon.js:7319:30
test/calling_test.js:466:15
runTest@node_modules/qunit/qunit/qunit.js:3041:34
run@node_modules/qunit/qunit/qunit.js:3027:13
node_modules/qunit/qunit/qunit.js:3258:15
processTaskQueue@node_modules/qunit/qunit/qunit.js:2614:28
node_modules/qunit/qunit/qunit.js:2618:24
invokeCallback@node_modules/qunit/qunit/qunit.js:1699:25
node_modules/qunit/qunit/qunit.js:1467:30
flush@node_modules/qunit/qunit/qunit.js:1419:15
ProgressEvent has total of requestBody byte size
Expected: 9
Actual: 210
onprogress@test/calling_test.js:460:19
node_modules/fake-xml-http-request/fake_xml_http_request.js:137:22
dispatchEvent@node_modules/fake-xml-http-request/fake_xml_http_request.js:181:28
_progress@node_modules/fake-xml-http-request/fake_xml_http_request.js:199:25
dist/pretender.js:9:18046
callTimer@node_modules/sinon/pkg/sinon.js:7096:25
tick@node_modules/sinon/pkg/sinon.js:7319:30
test/calling_test.js:466:15
runTest@node_modules/qunit/qunit/qunit.js:3041:34
run@node_modules/qunit/qunit/qunit.js:3027:13
node_modules/qunit/qunit/qunit.js:3258:15
processTaskQueue@node_modules/qunit/qunit/qunit.js:2614:28
node_modules/qunit/qunit/qunit.js:2618:24
invokeCallback@node_modules/qunit/qunit/qunit.js:1699:25
node_modules/qunit/qunit/qunit.js:1467:30
flush@node_modules/qunit/qunit/qunit.js:1419:15
ProgressEvent has total of requestBody byte size
Expected: 9
Actual: 210
onprogress@test/calling_test.js:460:19
node_modules/fake-xml-http-request/fake_xml_http_request.js:137:22
dispatchEvent@node_modules/fake-xml-http-request/fake_xml_http_request.js:181:28
_progress@node_modules/fake-xml-http-request/fake_xml_http_request.js:199:25
dist/pretender.js:9:18046
callTimer@node_modules/sinon/pkg/sinon.js:7096:25
tick@node_modules/sinon/pkg/sinon.js:7319:30
test/calling_test.js:466:15
runTest@node_modules/qunit/qunit/qunit.js:3041:34
run@node_modules/qunit/qunit/qunit.js:3027:13
node_modules/qunit/qunit/qunit.js:3258:15
processTaskQueue@node_modules/qunit/qunit/qunit.js:2614:28
node_modules/qunit/qunit/qunit.js:2618:24
invokeCallback@node_modules/qunit/qunit/qunit.js:1699:25
node_modules/qunit/qunit/qunit.js:1467:30
flush@node_modules/qunit/qunit/qunit.js:1419:15
PhantomJS 2.1.1 (Mac OS X 0.0.0) pretender invoking no progress upload events are fired after the request is aborted FAILED
ProgressEvent has total of requestBody byte size
Expected: 8
Actual: 210
onprogress@test/calling_test.js:495:19
node_modules/fake-xml-http-request/fake_xml_http_request.js:137:22
dispatchEvent@node_modules/fake-xml-http-request/fake_xml_http_request.js:181:28
_progress@node_modules/fake-xml-http-request/fake_xml_http_request.js:199:25
dist/pretender.js:9:18046
callTimer@node_modules/sinon/pkg/sinon.js:7096:25
tick@node_modules/sinon/pkg/sinon.js:7319:30
test/calling_test.js:502:15
runTest@node_modules/qunit/qunit/qunit.js:3041:34
run@node_modules/qunit/qunit/qunit.js:3027:13
node_modules/qunit/qunit/qunit.js:3258:15
processTaskQueue@node_modules/qunit/qunit/qunit.js:2614:28
node_modules/qunit/qunit/qunit.js:2618:24
invokeCallback@node_modules/qunit/qunit/qunit.js:1699:25
node_modules/qunit/qunit/qunit.js:1467:30
flush@node_modules/qunit/qunit/qunit.js:1419:15
Chrome 80.0.3987 (Mac OS X 10.15.3) pretender invoking async requests with `onprogress` events trigger a progress event each 50ms FAILED
GET request has no requestBody
Expected: 0
Actual: 300
at FakeRequest.xhr.onprogress (test/calling_test.js:528:14)
at FakeRequest.<anonymous> (node_modules/fake-xml-http-request/fake_xml_http_request.js:137:18)
at FakeRequest.dispatchEvent (node_modules/fake-xml-http-request/fake_xml_http_request.js:181:24)
at FakeRequest._progress (node_modules/fake-xml-http-request/fake_xml_http_request.js:199:12)
at dist/pretender.js:9:16264
Expected: 300
Actual: 51
at FakeRequest.xhr.onprogress (test/calling_test.js:529:14)
at FakeRequest.<anonymous> (node_modules/fake-xml-http-request/fake_xml_http_request.js:137:18)
at FakeRequest.dispatchEvent (node_modules/fake-xml-http-request/fake_xml_http_request.js:181:24)
at FakeRequest._progress (node_modules/fake-xml-http-request/fake_xml_http_request.js:199:12)
at dist/pretender.js:9:16264
GET request has no requestBody
Expected: 0
Actual: 300
at FakeRequest.xhr.onprogress (test/calling_test.js:528:14)
at FakeRequest.<anonymous> (node_modules/fake-xml-http-request/fake_xml_http_request.js:137:18)
at FakeRequest.dispatchEvent (node_modules/fake-xml-http-request/fake_xml_http_request.js:181:24)
at FakeRequest._progress (node_modules/fake-xml-http-request/fake_xml_http_request.js:199:12)
at dist/pretender.js:9:16264
Expected: 300
Actual: 103
at FakeRequest.xhr.onprogress (test/calling_test.js:529:14)
at FakeRequest.<anonymous> (node_modules/fake-xml-http-request/fake_xml_http_request.js:137:18)
at FakeRequest.dispatchEvent (node_modules/fake-xml-http-request/fake_xml_http_request.js:181:24)
at FakeRequest._progress (node_modules/fake-xml-http-request/fake_xml_http_request.js:199:12)
at dist/pretender.js:9:16264
GET request has no requestBody
Expected: 0
Actual: 300
at FakeRequest.xhr.onprogress (test/calling_test.js:528:14)
at FakeRequest.<anonymous> (node_modules/fake-xml-http-request/fake_xml_http_request.js:137:18)
at FakeRequest.dispatchEvent (node_modules/fake-xml-http-request/fake_xml_http_request.js:181:24)
at FakeRequest._progress (node_modules/fake-xml-http-request/fake_xml_http_request.js:199:12)
at dist/pretender.js:9:16264
Expected: 300
Actual: 157
at FakeRequest.xhr.onprogress (test/calling_test.js:529:14)
at FakeRequest.<anonymous> (node_modules/fake-xml-http-request/fake_xml_http_request.js:137:18)
at FakeRequest.dispatchEvent (node_modules/fake-xml-http-request/fake_xml_http_request.js:181:24)
at FakeRequest._progress (node_modules/fake-xml-http-request/fake_xml_http_request.js:199:12)
at dist/pretender.js:9:16264
GET request has no requestBody
Expected: 0
Actual: 300
at FakeRequest.xhr.onprogress (test/calling_test.js:528:14)
at FakeRequest.<anonymous> (node_modules/fake-xml-http-request/fake_xml_http_request.js:137:18)
at FakeRequest.dispatchEvent (node_modules/fake-xml-http-request/fake_xml_http_request.js:181:24)
at FakeRequest._progress (node_modules/fake-xml-http-request/fake_xml_http_request.js:199:12)
at dist/pretender.js:9:16264
Expected: 300
Actual: 209
at FakeRequest.xhr.onprogress (test/calling_test.js:529:14)
at FakeRequest.<anonymous> (node_modules/fake-xml-http-request/fake_xml_http_request.js:137:18)
at FakeRequest.dispatchEvent (node_modules/fake-xml-http-request/fake_xml_http_request.js:181:24)
at FakeRequest._progress (node_modules/fake-xml-http-request/fake_xml_http_request.js:199:12)
at dist/pretender.js:9:16264
GET request has no requestBody
Expected: 0
Actual: 300
at FakeRequest.xhr.onprogress (test/calling_test.js:528:14)
at FakeRequest.<anonymous> (node_modules/fake-xml-http-request/fake_xml_http_request.js:137:18)
at FakeRequest.dispatchEvent (node_modules/fake-xml-http-request/fake_xml_http_request.js:181:24)
at FakeRequest._progress (node_modules/fake-xml-http-request/fake_xml_http_request.js:199:12)
at dist/pretender.js:9:16264
Expected: 300
Actual: 260
at FakeRequest.xhr.onprogress (test/calling_test.js:529:14)
at FakeRequest.<anonymous> (node_modules/fake-xml-http-request/fake_xml_http_request.js:137:18)
at FakeRequest.dispatchEvent (node_modules/fake-xml-http-request/fake_xml_http_request.js:181:24)
at FakeRequest._progress (node_modules/fake-xml-http-request/fake_xml_http_request.js:199:12)
at dist/pretender.js:9:16264
.............22 02 2020 17:10:46.565:WARN [web-server]: 404: /some/path
.
PhantomJS 2.1.1 (Mac OS X 0.0.0) pretender invoking async requests with `onprogress` events trigger a progress event each 50ms FAILED
GET request has no requestBody
Expected: 0
Actual: 300
onprogress@test/calling_test.js:528:19
node_modules/fake-xml-http-request/fake_xml_http_request.js:137:22
dispatchEvent@node_modules/fake-xml-http-request/fake_xml_http_request.js:181:28
_progress@node_modules/fake-xml-http-request/fake_xml_http_request.js:199:25
dist/pretender.js:9:18133
Expected: 300
Actual: 52
onprogress@test/calling_test.js:529:19
node_modules/fake-xml-http-request/fake_xml_http_request.js:137:22
dispatchEvent@node_modules/fake-xml-http-request/fake_xml_http_request.js:181:28
_progress@node_modules/fake-xml-http-request/fake_xml_http_request.js:199:25
dist/pretender.js:9:18133
GET request has no requestBody
Expected: 0
Actual: 300
onprogress@test/calling_test.js:528:19
node_modules/fake-xml-http-request/fake_xml_http_request.js:137:22
dispatchEvent@node_modules/fake-xml-http-request/fake_xml_http_request.js:181:28
_progress@node_modules/fake-xml-http-request/fake_xml_http_request.js:199:25
dist/pretender.js:9:18133
Expected: 300
Actual: 103
onprogress@test/calling_test.js:529:19
node_modules/fake-xml-http-request/fake_xml_http_request.js:137:22
dispatchEvent@node_modules/fake-xml-http-request/fake_xml_http_request.js:181:28
_progress@node_modules/fake-xml-http-request/fake_xml_http_request.js:199:25
dist/pretender.js:9:18133
GET request has no requestBody
Expected: 0
Actual: 300
onprogress@test/calling_test.js:528:19
node_modules/fake-xml-http-request/fake_xml_http_request.js:137:22
dispatchEvent@node_modules/fake-xml-http-request/fake_xml_http_request.js:181:28
_progress@node_modules/fake-xml-http-request/fake_xml_http_request.js:199:25
dist/pretender.js:9:18133
Expected: 300
Actual: 155
onprogress@test/calling_test.js:529:19
node_modules/fake-xml-http-request/fake_xml_http_request.js:137:22
dispatchEvent@node_modules/fake-xml-http-request/fake_xml_http_request.js:181:28
_progress@node_modules/fake-xml-http-request/fake_xml_http_request.js:199:25
dist/pretender.js:9:18133
GET request has no requestBody
Expected: 0
Actual: 300
onprogress@test/calling_test.js:528:19
node_modules/fake-xml-http-request/fake_xml_http_request.js:137:22
dispatchEvent@node_modules/fake-xml-http-request/fake_xml_http_request.js:181:28
_progress@node_modules/fake-xml-http-request/fake_xml_http_request.js:199:25
dist/pretender.js:9:18133
Expected: 300
Actual: 208
onprogress@test/calling_test.js:529:19
node_modules/fake-xml-http-request/fake_xml_http_request.js:137:22
dispatchEvent@node_modules/fake-xml-http-request/fake_xml_http_request.js:181:28
_progress@node_modules/fake-xml-http-request/fake_xml_http_request.js:199:25
dist/pretender.js:9:18133
GET request has no requestBody
Expected: 0
Actual: 300
onprogress@test/calling_test.js:528:19
node_modules/fake-xml-http-request/fake_xml_http_request.js:137:22
dispatchEvent@node_modules/fake-xml-http-request/fake_xml_http_request.js:181:28
_progress@node_modules/fake-xml-http-request/fake_xml_http_request.js:199:25
dist/pretender.js:9:18133
Expected: 300
Actual: 260
onprogress@test/calling_test.js:529:19
node_modules/fake-xml-http-request/fake_xml_http_request.js:137:22
dispatchEvent@node_modules/fake-xml-http-request/fake_xml_http_request.js:181:28
_progress@node_modules/fake-xml-http-request/fake_xml_http_request.js:199:25
dist/pretender.js:9:18133
...22 02 2020 17:10:46.581:WARN [web-server]: 404: /some/path
.............22 02 2020 17:10:46.588:WARN [web-server]: 404: /some/path
..........22 02 2020 17:10:46.600:WARN [web-server]: 404: /some/otherpath
..22 02 2020 17:10:46.606:WARN [web-server]: 404: /some/otherpath
..
Chrome 80.0.3987 (Mac OS X 10.15.3) passthrough requests asynchronous request with pass-through and empty response FAILED
response for real and fake xhr are both blank strings
Expected: ""
Actual: null
at FakeRequest._onload (test/passthrough_test.js:332:14)
at FakeRequest.dispatchEvent (node_modules/fake-xml-http-request/fake_xml_http_request.js:181:24)
at dispatchEvent (dist/pretender.js:9:11588)
at testXHR.xhr.<computed> [as onload] (dist/pretender.js:9:12162)
at Object.apply (test/passthrough_test.js:316:15)
at FakeRequest.send (dist/pretender.js:9:9275)
Chrome 80.0.3987 (Mac OS X 10.15.3) passthrough requests > the `.passthrough()` property allows a passthrough on an unhandledRequest FAILED
Expected: 404
Actual: 0
at Object.error (test/passthrough_test.js:354:18)
at j (bower_components/jquery-1/index.js:2:27309)
at Object.fireWith [as rejectWith] (bower_components/jquery-1/index.js:2:28122)
at x (bower_components/jquery-1/index.js:5:22136)
at Function.ajax (bower_components/jquery-1/index.js:5:21607)
at Object.<anonymous> (test/passthrough_test.js:351:9)
.
Chrome 80.0.3987 (Mac OS X 10.15.3) passthrough requests > the `.passthrough()` property returns a native xhr FAILED
Died on test #1 at Object.<anonymous> (test/passthrough_test.js:360:5)
at processModule (node_modules/qunit/qunit/qunit.js:1191:16)
at module$1 (node_modules/qunit/qunit/qunit.js:1216:4)
at Object.<anonymous> (test/passthrough_test.js:343:3)
at processModule (node_modules/qunit/qunit/qunit.js:1191:16)
at module$1 (node_modules/qunit/qunit/qunit.js:1216:4)
at test/passthrough_test.js:5:1: request.passthrough is not a function
TypeError: request.passthrough is not a function
at Pretender.pretender.unhandledRequest (test/passthrough_test.js:385:37)
at Pretender.handleRequest (dist/pretender.js:9:21831)
at FakeRequest.send (dist/pretender.js:9:9397)
at Object.<anonymous> (test/passthrough_test.js:390:11)
at runTest (node_modules/qunit/qunit/qunit.js:3041:30)
at Test.run (node_modules/qunit/qunit/qunit.js:3027:6)
at node_modules/qunit/qunit/qunit.js:3258:12
at processTaskQueue (node_modules/qunit/qunit/qunit.js:2614:24)
at node_modules/qunit/qunit/qunit.js:2618:8
22 02 2020 17:10:46.629:WARN [web-server]: 404: /some/path
.22 02 2020 17:10:46.644:WARN [web-server]: 404: /some/path
.................
Chrome 80.0.3987 (Mac OS X 10.15.3): Executed 78 of 78 (7 FAILED) (0.962 secs / 0.921 secs)
.............22 02 2020 17:10:46.671:WARN [web-server]: 404: /some/path
.22 02 2020 17:10:46.685:WARN [web-server]: 404: /some/path
....22 02 2020 17:10:46.701:WARN [web-server]: 404: /some/otherpath
.22 02 2020 17:10:46.708:WARN [web-server]: 404: /some/otherpath
.
PhantomJS 2.1.1 (Mac OS X 0.0.0) passthrough requests asynchronous request with pass-through and empty response FAILED
response for real and fake xhr are both blank strings
Expected: ""
Actual: null
_onload@test/passthrough_test.js:332:19
dispatchEvent@node_modules/fake-xml-http-request/fake_xml_http_request.js:181:28
dispatchEvent@dist/pretender.js:9:30958
dist/pretender.js:9:31532
apply@test/passthrough_test.js:316:21
send@dist/pretender.js:9:19183
test/passthrough_test.js:340:13
runTest@node_modules/qunit/qunit/qunit.js:3041:34
run@node_modules/qunit/qunit/qunit.js:3027:13
node_modules/qunit/qunit/qunit.js:3258:15
processTaskQueue@node_modules/qunit/qunit/qunit.js:2614:28
node_modules/qunit/qunit/qunit.js:2618:24
invokeCallback@node_modules/qunit/qunit/qunit.js:1699:25
node_modules/qunit/qunit/qunit.js:1467:30
flush@node_modules/qunit/qunit/qunit.js:1419:15
PhantomJS 2.1.1 (Mac OS X 0.0.0) passthrough requests > the `.passthrough()` property allows a passthrough on an unhandledRequest FAILED
Expected: 404
Actual: 0
error@test/passthrough_test.js:354:23
j@bower_components/jquery-1/index.js:2:27578
fireWith@bower_components/jquery-1/index.js:2:55529
x@bower_components/jquery-1/index.js:5:41346
ajax@bower_components/jquery-1/index.js:5:21608
test/passthrough_test.js:351:13
runTest@node_modules/qunit/qunit/qunit.js:3041:34
run@node_modules/qunit/qunit/qunit.js:3027:13
node_modules/qunit/qunit/qunit.js:3258:15
processTaskQueue@node_modules/qunit/qunit/qunit.js:2614:28
node_modules/qunit/qunit/qunit.js:2618:24
invokeCallback@node_modules/qunit/qunit/qunit.js:1699:25
node_modules/qunit/qunit/qunit.js:1467:30
flush@node_modules/qunit/qunit/qunit.js:1419:15
22 02 2020 17:10:46.738:WARN [web-server]: 404: /some/path
PhantomJS 2.1.1 (Mac OS X 0.0.0) passthrough requests > the `.passthrough()` property returns a native xhr FAILED
Died on test #1 undefined: undefined is not a constructor (evaluating 'request.passthrough()')
unhandledRequest@test/passthrough_test.js:385:48
handleRequest@dist/pretender.js:9:23707
send@dist/pretender.js:9:19313
test/passthrough_test.js:390:15
runTest@node_modules/qunit/qunit/qunit.js:3041:34
run@node_modules/qunit/qunit/qunit.js:3027:13
node_modules/qunit/qunit/qunit.js:3258:15
processTaskQueue@node_modules/qunit/qunit/qunit.js:2614:28
node_modules/qunit/qunit/qunit.js:2618:24
invokeCallback@node_modules/qunit/qunit/qunit.js:1699:25
node_modules/qunit/qunit/qunit.js:1467:30
flush@node_modules/qunit/qunit/qunit.js:1419:15
.................
PhantomJS 2.1.1 (Mac OS X 0.0.0): Executed 78 of 78 (7 FAILED) (0.982 secs / 0.962 secs)
TOTAL: 14 FAILED, 142 SUCCESS
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] tests-only: `karma start --single-run`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] tests-only script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! /Users/samselikoff/.npm/_logs/2020-02-22T22_10_46_916Z-debug.log
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command. |
|
@GriffinSauce not sure but thanks for the suggestion, after Thomas' latest commit I have it working + can now get to work on this! |
Closed by #296 |
Pretender uses the
whatwg-fetch
package in order to interceptfetch
calls.Even though
whatwg-fetch
is explicitly imported here (and used here), Pretender is actually relying implicitly onwhatwg-fetch
's internals to get thefetch
intercepting behavior working correctly.The reason is because the
fetch
implementation thatwhatwg-fetch
provides actually delegates towindow.XMLHTTPRequest
under the hood. Since Pretender also monkey patcheswindow.XMLHTTPRequest
, it is able to interceptfetch
calls equally as well. But it's only due to those internals – due to the fact that thewhatwg-fetch
polyfill happens to use XMLHTTPRequest under the hood. This is not part ofwhatwg-fetch
's public API, even though it is unlikely the change.The reason this bit us recently is because some folks are trying to use Mirage with Next.js. Next performs some build-time optimizations to ensure apps don't include multiple or heavy versions of popular polyfills,
whatwg-fetch
being one of them. So, they actually swap out the package thatwhatwg-fetch
resolves to, meaning when Pretender tries toimport * from 'whatwg-fetch'
, it ends up with a different polyfill entirely, and one that does not happen to useXMLHTTPRequest
under the hood. Therefore, Pretender (and thus Mirage) don't work.We asked about how to opt-out of this optimizing behavior here, but as of right now the Zeit team doesn't have any plans to make the behavior configurable.
In any case, regardless of whether Next.js chooses to expose such an option, it is still true that today, Pretender is relying on internals of
whatwg-fetch
, and that poses a risk to Pretender in the event those internals ever change.I'm proposing that we vendor the latest version of
whatwg-fetch
into Pretender directly, since we are relying on observable but undocumented behavior of its current implementation. This would give us total control over the code, and would also address the Next.js issue sincewhatwg-fetch
would no longer be an external dependency that could be hoisted or replaced.The text was updated successfully, but these errors were encountered: