[Bug] Cannot use router.isActive, without first calling router.urlFor

[amk221]

🐞 Describe the Bug

Here is a demo app with a failing test

When calling router.isActive, an error is thrown: Cannot read properties of undefined (reading 'isActiveIntent'). Which seems to suggest routerMicrolib is undefined. Calling router.urlFor first, makes the isActive call work. presumably it sets up routerMicrolib.

Stack trace

isActive	@	router-service.js:250
get isActive	@	foo.js:44
getPossibleMandatoryProxyValue	@	index.js:1611
_getProp	@	index.js:1635
(anonymous)	@	reference.js:164
(anonymous)	@	reference.js:125
track	@	validator.js:660
valueForRef	@	reference.js:124
(anonymous)	@	runtime.js:2971
(anonymous)	@	reference.js:125
track	@	validator.js:660
valueForRef	@	reference.js:124
(anonymous)	@	runtime.js:1736
evaluate	@	runtime.js:1061
evaluateSyscall	@	runtime.js:4920
evaluateInner	@	runtime.js:4898
evaluateOuter	@	runtime.js:4891
next	@	runtime.js:5744
_execute	@	runtime.js:5733
execute	@	runtime.js:5707
handleException	@	runtime.js:5036
handleException	@	runtime.js:5252
throw	@	runtime.js:4979
evaluate	@	runtime.js:1415
_execute	@	runtime.js:4966
(anonymous)	@	runtime.js:4940
debug.runInTrackingTransaction	@	validator.js:115
execute	@	runtime.js:4940
rerender	@	runtime.js:5278
(anonymous)	@	index.js:4724
(anonymous)	@	index.js:4691
(anonymous)	@	index.js:4981
inTransaction	@	runtime.js:4073
_renderRoots	@	index.js:4963
_renderRootsTransaction	@	index.js:5007
_revalidate	@	index.js:5039
invoke	@	backburner.js.js:272
flush	@	backburner.js.js:188
flush	@	backburner.js.js:344
_end	@	backburner.js.js:773
Backburner._boundAutorunEnd	@	backburner.js.js:509
Promise.then (async)		
iterations	@	backburner.js.js:26
flush	@	index.js:40
_scheduleAutorun	@	backburner.js.js:939
_end	@	backburner.js.js:779
Backburner._boundAutorunEnd	@	backburner.js.js:509
Promise.then (async)		
iterations	@	backburner.js.js:26
flush	@	index.js:40
_scheduleAutorun	@	backburner.js.js:939
_end	@	backburner.js.js:779
Backburner._boundAutorunEnd	@	backburner.js.js:509
Promise.then (async)		
iterations	@	backburner.js.js:26
flush	@	index.js:40
_scheduleAutorun	@	backburner.js.js:939
_ensureInstance	@	backburner.js.js:930
ensureInstance	@	backburner.js.js:742
scheduleRevalidate	@	index.js:3396
dirtyTag	@	validator.js:377
(anonymous)	@	index.js:4630
updateRef	@	reference.js:138
setOutletState	@	index.js:4657
(anonymous)	@	setup-rendering-context.js:163
Promise.then (async)		
render	@	setup-rendering-context.js:102
(anonymous)	@	foo-test.js:11
runTest	@	qunit.js:415
run	@	qunit.js:413
eval	@	qunit.js:457
processTaskQueue	@	qunit.js:673
advanceTaskQueue	@	qunit.js:667
advance	@	qunit.js:665
eval	@	qunit.js:543
setTimeout (async)		
internalStart	@	qunit.js:543
release	@	qunit.js:527
resolve	@	qunit.js:528
Promise.then (async)		
resolvePromise	@	qunit.js:530
callHook	@	qunit.js:417
runHook	@	qunit.js:426
processTaskQueue	@	qunit.js:673
advanceTaskQueue	@	qunit.js:667
advance	@	qunit.js:665
eval	@	qunit.js:543
setTimeout (async)		
internalStart	@	qunit.js:543
release	@	qunit.js:527
resolve	@	qunit.js:528
Promise.then (async)		
resolvePromise	@	qunit.js:530
callHook	@	qunit.js:417
runHook	@	qunit.js:426
processTaskQueue	@	qunit.js:673
eval	@	qunit.js:673
Promise.then (async)		
processTaskQueue	@	qunit.js:673
eval	@	qunit.js:673
Promise.then (async)		
processTaskQueue	@	qunit.js:673
advanceTaskQueue	@	qunit.js:667
advance	@	qunit.js:665
advanceTestQueue	@	qunit.js:675
advance	@	qunit.js:665
unblockAndAdvanceQueue	@	qunit.js:1059
Promise.then (async)		
begin	@	qunit.js:1067
eval	@	qunit.js:1059
setTimeout (async)		
scheduleBegin	@	qunit.js:1059
load	@	qunit.js:1058
load (async)		
addEvent	@	qunit.js:1158
eval	@	qunit.js:1250
eval	@	qunit.js:1269
eval	@	qunit.js:1269
./node_modules/qunit/qunit/qunit.js	@	chunk.vendors-node_m…eb5b7192bd18b.js:94
__webpack_require__	@	chunk.tests.3a32729….js:108
eval	@	tests.cjs:20
Module.exports	@	loader.js:106
Module._reify	@	loader.js:143
Module.reify	@	loader.js:130
Module.exports	@	loader.js:104
requireModule	@	loader.js:27
(anonymous)	@	tests-suffix.js:1

🔬 Minimal Reproduction

See demo app

😕 Actual Behavior

Error is thrown

🤔 Expected Behavior

isActive should return whether the route is active

🌍 Environment

ember-cli: 5.6.0
node: 18.16.0
os: darwin arm64

➕ Additional Context

Add any other context about the problem here.