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phetsims / projectile-motion

"Projectile Motion" is an educational simulation in HTML5, by PhET Interactive Simulations.
GNU General Public License v3.0
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CT cannot add the same listener twice #235

Closed KatieWoe closed 3 years ago

KatieWoe commented 3 years ago 
projectile-motion : fuzz : unbuilt
https://bayes.colorado.edu/continuous-testing/ct-snapshots/1602624671211/projectile-motion/projectile-motion_en.html?continuousTest=%7B%22test%22%3A%5B%22projectile-motion%22%2C%22fuzz%22%2C%22unbuilt%22%5D%2C%22snapshotName%22%3A%22snapshot-1602624671211%22%2C%22timestamp%22%3A1602625644387%7D&brand=phet&ea&fuzz&memoryLimit=1000
Query: brand=phet&ea&fuzz&memoryLimit=1000
Uncaught Error: Assertion failed: Cannot add the same listener twice
Error: Assertion failed: Cannot add the same listener twice
at window.assertions.assertFunction (https://bayes.colorado.edu/continuous-testing/ct-snapshots/1602624671211/assert/js/assert.js:22:13)
at TinyEmitter.addListener (https://bayes.colorado.edu/continuous-testing/ct-snapshots/1602624671211/axon/js/TinyEmitter.js:99:15)
at BooleanProperty.link (https://bayes.colorado.edu/continuous-testing/ct-snapshots/1602624671211/axon/js/Property.js:386:25)
at https://bayes.colorado.edu/continuous-testing/ct-snapshots/1602624671211/scenery/js/listeners/PressListener.js:295:77
at TinyEmitter.emit (https://bayes.colorado.edu/continuous-testing/ct-snapshots/1602624671211/axon/js/TinyEmitter.js:71:18)
at https://bayes.colorado.edu/continuous-testing/ct-snapshots/1602624671211/axon/js/Emitter.js:35:29
at Emitter.execute (https://bayes.colorado.edu/continuous-testing/ct-snapshots/1602624671211/axon/js/Action.js:225:18)
at Emitter.emit (https://bayes.colorado.edu/continuous-testing/ct-snapshots/1602624671211/axon/js/Emitter.js:60:19)
at Proxy.push (https://bayes.colorado.edu/continuous-testing/ct-snapshots/1602624671211/axon/js/createObservableArray.js:264:32)
at FireListener.enter (https://bayes.colorado.edu/continuous-testing/ct-snapshots/1602624671211/scenery/js/listeners/PressListener.js:674:23)
id: Bayes Chrome
Snapshot from 10/13/2020, 3:31:11 PM
jbphet commented 3 years ago

I was talking with @zepumph, and he said that he thought this issue might be due to the phet-io work that was done on this sim a while back, so I'm assigning to him. @zepumph - feel free to hit it back into my court if it makes sense to do so.

zepumph commented 3 years ago

I haven't seen this on CT for a long long time.

zepumph commented 3 years ago

I can't seem to reproduce this. I'll reopen if I catch it again.