r/aws_backup_vault: Fix empty result errors reading vaults in certain Regions

[ewbankkit]

Description

VaultType will be empty ("") in Regions that don't support Logically Air Gapped Vaults.

Relations

Closes #39664.
Closes #39650.
Relates #39098.

Output from Acceptance Testing

Before

% AWS_DEFAULT_REGION=ca-west-1 make testacc TESTARGS='-run=TestAccBackupVault_basic' PKG=backup
make: Verifying source code with gofmt...
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go1.23.2 test ./internal/service/backup/... -v -count 1 -parallel 20  -run=TestAccBackupVault_basic -timeout 360m
2024/10/10 08:24:40 Initializing Terraform AWS Provider...
=== RUN   TestAccBackupVault_basic
=== PAUSE TestAccBackupVault_basic
=== CONT  TestAccBackupVault_basic
    vault_test.go:36: Step 1/2 error: Error running apply: exit status 1
        
        Error: reading Backup Vault (tf-acc-test-5117170325796173347): empty result
        
          with aws_backup_vault.test,
          on terraform_plugin_test.tf line 12, in resource "aws_backup_vault" "test":
          12: resource "aws_backup_vault" "test" {
        
--- FAIL: TestAccBackupVault_basic (7.40s)
FAIL
FAIL	github.com/hashicorp/terraform-provider-aws/internal/service/backup	12.336s
FAIL
make: *** [testacc] Error 1

After

% AWS_DEFAULT_REGION=ca-west-1 make testacc TESTARGS='-run=TestAccBackupVault_basic' PKG=backup
make: Verifying source code with gofmt...
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go1.23.2 test ./internal/service/backup/... -v -count 1 -parallel 20  -run=TestAccBackupVault_basic -timeout 360m
2024/10/10 08:40:43 Initializing Terraform AWS Provider...
=== RUN   TestAccBackupVault_basic
=== PAUSE TestAccBackupVault_basic
=== CONT  TestAccBackupVault_basic
--- PASS: TestAccBackupVault_basic (14.29s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/backup	19.353s

% make testacc TESTARGS='-run=TestAccBackupVault_basic\|TestAccBackupLogicallyAirGappedVault_basic' PKG=backup
make: Verifying source code with gofmt...
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go1.23.2 test ./internal/service/backup/... -v -count 1 -parallel 20  -run=TestAccBackupVault_basic\|TestAccBackupLogicallyAirGappedVault_basic -timeout 360m
2024/10/10 10:42:07 Initializing Terraform AWS Provider...
=== RUN   TestAccBackupLogicallyAirGappedVault_basic
=== PAUSE TestAccBackupLogicallyAirGappedVault_basic
=== RUN   TestAccBackupVault_basic
=== PAUSE TestAccBackupVault_basic
=== CONT  TestAccBackupLogicallyAirGappedVault_basic
=== CONT  TestAccBackupVault_basic
--- PASS: TestAccBackupVault_basic (14.01s)
--- PASS: TestAccBackupLogicallyAirGappedVault_basic (149.75s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/backup	154.842s

[github-actions]

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[jar-b]

LGTM 🚀

[tanadeau]

@ewbankkit: In GovCloud, it looks like the VaultType is null and not empty.

[ewbankkit]

Verified in US GovCloud:

% hashigovaws 
Setting HashiCorp AWS GovCloud credentials
% make testacc TESTARGS='-run=TestAccBackupVault_basic' PKG=backup
make: Verifying source code with gofmt...
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go1.23.2 test ./internal/service/backup/... -v -count 1 -parallel 20  -run=TestAccBackupVault_basic -timeout 360m
2024/10/10 13:22:41 Initializing Terraform AWS Provider...
=== RUN   TestAccBackupVault_basic
=== PAUSE TestAccBackupVault_basic
=== CONT  TestAccBackupVault_basic
--- PASS: TestAccBackupVault_basic (13.56s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/backup	18.583s

@tanadeau A null in the JSON returned from the Backup service becomes an empty string in the Go API.

[github-actions]

This functionality has been released in v5.72.0 of the Terraform AWS Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!