Terraform dynamically create a tuple

Here is the challenge:

I have an iterated for-each loop to create a bunch of elements in a list:

test_count = 90
test_items = [for i in range(local.test_count) : format("test%02s", i+1)]

What I need to do is to dynimcally create a local tuple that looks like the below:

custom_items = {
    test01 = {
      name      = concat("test01", "shared value")
    }
    test02 = {
      name      = concat("test02", "shared value")
    }
  }

This is because the test01 component is used as a key later on for calling dynamically created modules.

However, I am not sure if or how one can dynamically create a list.

Obviously there will be a for_each loop or a for i in etc. in it, but I am not sure how to create the list, to be able to reference it later on.

Iterate over test_items to create the desired object:

locals {
  test_count = 90
  test_items = [for i in range(local.test_count) : format("test%02s", i + 1)]
  custom_items = {
    for item in local.test_items :
    item => {
      name = format("%s%s", item, "shared value")
    }
  }
}

> local.custom_items
{
  "test01" = {
    "name" = "test01shared value"
  }
  "test02" = {
    "name" = "test02shared value"
  }
  "test03" = {
    "name" = "test03shared value"
  }
  "test04" = {
    "name" = "test04shared value"
  }
  ...
}