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Sarj Sarj Sarj Standards

no-mocked-terraform-test-oracle

Warn when a Terraform assertion directly reasserts the same literal injected by a module override.

SARJ206 Rule source Tests Catalog JSON

Why

An assertion that compares an overridden attribute directly with its authored override value is self-fulfilling; it does not exercise configuration logic or provider behavior.

Fix

Assert on configuration behavior derived from the override, or add provider-backed/runtime coverage for provider-dependent claims. Empty mock providers remain valid for fast configuration tests.

Examples

Before — flagged Assertion repeats its own module output override
tests/routing.tftest.hcl
override_module {
  target  = module.storage
  outputs = { arn = "fixture-arn" }
}


run "routing" {
  assert {
    condition     = module.storage.arn == "fixture-arn"
    error_message = "ARN mismatch"
  }
}
After — preferred Empty mock provider validates configured plan behavior
tests/routing.tftest.hcl
mock_provider "aws" {}


run "routing" {
  command = plan


  assert {
    condition     = aws_s3_bucket.main.bucket == var.bucket_name
    error_message = "bucket configuration drifted"
  }
}

Formerly: no-terraform-test-file