OpenTofu Version

OpenTofu v1.8.2
on darwin_arm64
+ provider registry.opentofu.org/hashicorp/random v3.6.3

The problem in your OpenTofu project

While currently tofu (after #1204) supports resource overrides at top level and within run blocks, as mentioned there, it does not yet support mock provider level overrides.

Since this is supported in Terraform, it would be nice to have feature parity with Terraform

Attempted Solutions

mock_provider "random" {
  override_resource {
    target = random_integer.count
    values = {
      result = 58
    }
  }
  alias = "fake"
}

This returns the error

│ Error: Unsupported block type
│ 
│   on main.tftest.hcl line 2, in mock_provider "random":
│    2:   override_resource {
│ 
│ Blocks of type "override_resource" are not expected here.
╵

Proposal

No response

References

No response