How to check required key by Validate() function

[roylisto]

Validate() function will not return any error if I validate the empty yaml file by cue definition.
I would like to expect Validate() function to throw an error like "a key is required"

for example
test.cue

apiVersion: "v1"

Here is my test case so far

• if I validate it by empty yaml file or omit the apiVersion key, currently it won't return any error (not expected)

• if I put apiVersion: v2 in the yaml file, it will returns
  apiVersion: conflicting values "v1" and "v2" (expected)

• if I change the cue validation to be apiVersion: string and omit the key from yaml file, it will returns apiVersion: incomplete value string, this is expected but the value I want is v1. By this approach, people can write any value to apiVersion, and I don't want that

• The last approach is by using regex, so apiVersion: =~"^v1$", by this way, now it will check my "required" value and will returns apiVersion: incomplete value =~"^v1$"if I omit the key, and will returns apiVersion: invalid value "v2" (out of bound =~"^v1$") when I put v2 as apiVersion value

The question is my approach correct? or is there a better way?

[myitcv]

@roylisto you are running up against one the use cases that motivated #822. So for now what you want to do is not possible.

[roylisto]

Ah I see, I will monitor this proposal #822 .