"Template Should Not Contain Blanks" tests for blanks but some Azure Resources necessitate a blank about arm-ttk

[mgeorgebrown89]

Oh, and now I see part of the problem. There are exceptions in Template-Should-Not-Contain-Blanks.test.ps1 here:

$PropertiesThatCanBeEmpty = 'resources', 
                        'outputs', 
                        'variables', 
                        'parameters', 
                        'functions', 
                        'properties', 
                        'defaultValue', # enables optional parameters
                        'accessPolicies',  # keyVault requires this
                        'value', # Microsoft.Resources/deployments - passing empty strings to a nested deployment
                        'promotionCode', # Microsoft.OperationsManagement/soltuions/plan object
                        'inputs' # Microsoft.Portal/dashboard

But in this particular case, the property is dynamic, making it difficult to just add to this list.

[bmoore-msft]

Thanks for the bug... - you're right this one is tricky, we should be able to detect if the property is an expression though in this case it could be a literal too (e.g. GUID). That might unblock, but not sure if it's sustainable.

[marrobi]

I've got this same issue, and another on the same rule...

Can you think of another way to do this? I need to conditionally join three subnets (this is one example, I have another with security rules):

"subnets": "[union(variables('defaultSubnets'),if(parameters('deployVnetGateway'), variables('gatewaySubnet'),json('[]')),if(parameters('deployBastion'), variables('bastionSubnet'),json('[]')))]",

[bmoore-msft]

@marrobi - can you file a separate issue for your scenario? As a workaround can you change json('[]') to json('null')? That might trigger different behavior if the vnet already has subnets, not 100% certain.

[marrobi]

I'm hitting the userAssignedIdentities issue on a number of templates. Possible to add an exception for userAssignedIdentities? Thanks.

[bmoore-msft]

Fixed in #65