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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 normalize a zero-magnitude vector #240

Closed KatieWoe closed 3 years ago

KatieWoe commented 3 years ago 
projectile-motion : phet-io-studio-fuzz : unbuilt
https://bayes.colorado.edu/continuous-testing/ct-snapshots/1611341282444/studio/?sim=projectile-motion&phetioDebug&fuzz&wrapperContinuousTest=%7B%22test%22%3A%5B%22projectile-motion%22%2C%22phet-io-studio-fuzz%22%2C%22unbuilt%22%5D%2C%22snapshotName%22%3A%22snapshot-1611341282444%22%2C%22timestamp%22%3A1611342660737%7D
Uncaught Error: Uncaught Error: Cannot normalize a zero-magnitude vector
Error: Cannot normalize a zero-magnitude vector
at Vector2.normalized (https://bayes.colorado.edu/continuous-testing/ct-snapshots/1611341282444/dot/js/Vector2.js:256:13)
at Line.getStartTangent (https://bayes.colorado.edu/continuous-testing/ct-snapshots/1611341282444/kite/js/segments/Line.js:212:54)
at Line.get startTangent [as startTangent] (https://bayes.colorado.edu/continuous-testing/ct-snapshots/1611341282444/kite/js/segments/Line.js:216:36)
at Line.areStrokedBoundsDilated (https://bayes.colorado.edu/continuous-testing/ct-snapshots/1611341282444/kite/js/segments/Segment.js:95:27)
at Shape.getStrokedBounds (https://bayes.colorado.edu/continuous-testing/ct-snapshots/1611341282444/kite/js/Shape.js:1543:23)
at ArrowNode.computeShapeBounds (https://bayes.colorado.edu/continuous-testing/ct-snapshots/1611341282444/scenery/js/nodes/Path.js:335:34)
at ArrowNode.updateSelfBounds (https://bayes.colorado.edu/continuous-testing/ct-snapshots/1611341282444/scenery/js/nodes/Path.js:262:47)
at ArrowNode.validateSelfBounds (https://bayes.colorado.edu/continuous-testing/ct-snapshots/1611341282444/scenery/js/nodes/Node.js:1140:40)
at ArrowNode.validateBounds (https://bayes.colorado.edu/continuous-testing/ct-snapshots/1611341282444/scenery/js/nodes/Node.js:1168:31)
at ProjectileNode.validateBounds (https://bayes.colorado.edu/continuous-testing/ct-snapshots/1611341282444/scenery/js/nodes/Node.js:1185:29)
id: Bayes Chrome
Snapshot from 1/22/2021, 11:48:02 AM
jbphet commented 3 years ago

This is a duplicate of #234. It is an intermittent problem that occurs during CT, and I'll get to it someday. Just not today. Closing.