Error: "all[i].className.split is not a function"

[knocte]

We got today an interesting error, which seems not deterministic (if we run it again, it goes away):

Check Success Notification for Step 1
Error: 
unknown error: all[i].className.split is not a function
  (Session info: chrome=56.0.2924.76)
  (Driver info: chromedriver=2.25,platform=Linux 4.9.9-coreos-r1 x86_64)
Url: https://**redacted**/platform/getStarted
Stack: 
  at OpenQA.Selenium.Remote.RemoteWebDriver.UnpackAndThrowOnError (OpenQA.Selenium.Remote.Response errorResponse) <0x40e41000 + 0x00243> in <filename unknown>:0 
  at OpenQA.Selenium.Remote.RemoteWebDriver.Execute (System.String driverCommandToExecute, System.Collections.Generic.Dictionary`2 parameters) <0x40dd1160 + 0x0017f> in <filename unknown>:0 
  at OpenQA.Selenium.Remote.RemoteWebDriver.ExecuteScriptCommand (System.String script, System.String commandName, System.Object[] args) <0x40e3b680 + 0x00106> in <filename unknown>:0 
  at OpenQA.Selenium.Remote.RemoteWebDriver.ExecuteScript (System.String script, System.Object[] args) <0x40e3b640 + 0x0002f> in <filename unknown>:0 
  at canopy.core.suggestOtherSelectors$cont@181 (System.String cssSelector, Microsoft.FSharp.Core.Unit unitVar) <0x40e7f000 + 0x0010c> in <filename unknown>:0 
  at canopy.core.findByFunction[a,b,c] (System.String cssSelector, canopy.a timeout, Microsoft.FSharp.Core.FSharpFunc`2 waitFunc, canopy.b searchContext, Boolean reliable) <0x40e3d570 + 0x00273> in <filename unknown>:0 
  at canopy.core.elementWithin (System.String cssSelector, IWebElement elem) <0x40e51150 + 0x000ef> in <filename unknown>:0 
  at UITest.GateCoinCommon.CheckSuccessNotification (System.String name, System.String message) [0x00036] in /builds/gatecoin/web-ui-tests/UITest/GateCoinCommon.fs:95 
  at [email protected] (Microsoft.FSharp.Core.Unit _arg4) [0x00027] in /builds/gatecoin/web-ui-tests/UITest/SignUpGetStarted.fs:129 
  at [email protected] (Microsoft.FSharp.Core.Unit x) <0x40e4a460 + 0x0003b> in <filename unknown>:0 
  at canopy.runner.tryTest[a,b] (canopy.a test, canopy.b suite, Microsoft.FSharp.Core.FSharpFunc`2 func) <0x40e4a250 + 0x00043> in <filename unknown>:0 

Any idea how this could happen?

[lefthandedgoat]

Its this line right here: https://github.com/lefthandedgoat/canopy/blob/master/src/canopy/canopy.fs#L155

When it can't find a selector it grabs all the elements in the doms, their classes/ids etc, and tries to suggest one for you that is similar. Maybe I need to do .toString().

This is old code so its unfortunate its breaking now, but who knows with JS.

I will update and do it a new build tonight.

[lefthandedgoat]

I could not reproduce this in the js console window, because className is a string, so I am unsure how split is there sometimes and not others.

I did add a 'toString()' call before the split to always coerce className to a string. I hope this fixes it.

You can download the updated package here: https://www.nuget.org/packages/canopy/1.2.1