Silence FAST tests warnings

- Fix pytest PytestUnraisableExceptionWarning
- Remove incorrect print
- Use tfvars for some examples in READMEs

fast/stages/1-resman/README.md

@@ -145,7 +145,7 @@ The first set of default tags cannot be overridden and defines the following key
 
 The second set is optional and allows defining a custom tag hierarchy, including IAM bindings that can refer to specific identities, or to the internally defined automation service accounts via their names, like in the following example:
 
-```hcl
+```tfvars
 tags = {
   my-custom-tag = {
     values = {
@@ -258,7 +258,7 @@ classDiagram
 
 This is an example that shows how to populate the relevant variables.
 
-```hcl
+```tfvars
 tenants = {
   tn0 = {
     admin_group_email = "tn-0-admins@tenant.example.org"

tests/fixtures.py

@@ -133,6 +133,12 @@ def plan_summary(module_path, basedir, tf_var_files=None, extra_files=None,
     # extract planned outputs
     outputs = plan.get('planned_values', {}).get('outputs', {})
 
+    # force the destruction of the tftest object, otherwise pytest
+    # will complain about unraisable exceptions caused by the context
+    # manager deleting temporary files, including the extra_files that
+    # tftest tries to remove on cleanup
+    del tf
+
     return PlanSummary(values, dict(counts), outputs)
 
 
@@ -148,7 +154,6 @@ def plan_summary_fixture(request):
             **tf_vars):
     if basedir is None:
       basedir = Path(request.fspath).parent
-      print(f"{basedir=}")
     return plan_summary(module_path=module_path, basedir=basedir,
                         tf_var_files=tf_var_files, extra_files=extra_files,
                         **tf_vars)