Incorrect string equality in VTL templates

[cyberwombat]

I am wanting to compare strings and am unable to. Note that I am using serverless-appsync-offline but evidently it's just wrapping appsync-emulator-serverless.

Consider this example:

#set($foo = "a")
#set($bar = "a")

#if($foo == $bar) // Not the same
#if($foo == $bar.toString()) // The same
#if($foo.toString() == $bar) // The same

If I cast a single one then it matches?

I tried using the current version of velocityjs which appears to be the rendering engine and it works fine. Also someone tried it live on AWS and it works - just not when running locally.

My setup:

"serverless": "^1.47.0",
"serverless-appsync-offline": "^1.3.3",
"serverless-appsync-plugin": "^1.1.2",
"serverless-dynamodb-local": "^0.2.38",

My template:

#set($foo="a")
#set($bar="a")
#if($foo==$bar)
  same
#else
 not same
#end

I am loading this using SLS_DEBUG=* NODE_DEBUG=appsync-* yarn sls appsync-offline start and testing with graphiQL

[lightsofapollo]

Thanks for reporting this! I will see if this is something we can fix quickly. I will note we will have an exciting announcement coming soon that should help this issue.